Buying Guide
19 Best Android Power-User Tools and Utilities in 2026
By Rehman Ahmad · Updated 2026-09-04 · 16 min read · 3484 words
Short answer
Start with three. Shizuku is 2.5 MB and unlocks system-level features in other apps without root. Obtainium updates sideloaded apps straight from their source, which nothing else does. NetGuard is a 3.1 MB firewall that needs no root. After those, pick by job: a browser, a password vault, a cleaner, a file manager.
This is the list for people who want the phone to do what they tell it, and it splits into six jobs.
Get privileged access. The features that normally need root, without rooting. Shizuku, Termux.
Control what you install and how it updates. Because a sideloaded app never updates itself. Obtainium, F-Droid, ReVanced Manager.
Control what leaves the phone. A firewall, and the browsers that leak least. NetGuard, Tor, DuckDuckGo, Firefox Nightly.
Hold your secrets. Password vaults and two-factor codes that are not tied to a cloud account. KeePassDX, Keepass2Android, Authenticator.
Reclaim space and battery. SD Maid, 1Tap Cleaner, Files by Google, AccuBattery.
Handle files. X-plore, ZArchiver, and Maps for the one thing nothing else replaces.
Twelve of these nineteen are open source, and in this category that is the headline. A tool that reads your files, filters your traffic or holds your passwords is exactly the software where source you can read matters most.
Every version, size, minimum Android and licence below is the catalogue entry for the package this site serves.
Privileged access
1. Shizuku — root-level features without root
Shizuku is the smallest app on this page and the one that unlocks the most.
- Version: v13.6.0 · Size: 2.5 MB · Android: 6.0+ · Licence: open source · Developer: RikkaApps (Open Source)
It runs an ADB-privileged service that other apps can talk to, so a supported app can use system APIs that would otherwise need root. That is why several genuinely powerful utilities work on a completely stock, unrooted phone. At 4.9★ across 10,300 reviews it is one of the highest-rated apps here, and it is 2.5 MB.
The trade is the start-up ritual: the service must be started once per boot, either from a computer over ADB or, on Android 11 and later, through wireless debugging on the phone itself. Once running, it is invisible.
Pick this one if: an app you want says it supports Shizuku — install this first and the rest gets easier.
2. Termux — a real Linux terminal on the phone
Termux is a full terminal environment, and it is not a toy.
- Version: v0.118.3 · Size: 33.5 MB · Android: 7.0+ · Licence: open source · Developer: Termux Organization
A package manager, a shell, Python, Node, git, ssh, and a large repository of real Linux software running natively on Android without root. You can genuinely do work in it — scripts, a remote session, a small server. At 4.9★ across 10,650 reviews it is beloved by the people who use it.
The trade is that it is a terminal, so it assumes you know what to type, and the Play Store version has been stuck behind Android policy changes for years — the F-Droid or GitHub build is the maintained one, which is precisely why Obtainium exists.
Pick this one if: you know your way around a shell and want that on your phone.
Installing and updating
3. Obtainium — the updater for apps you sideload
Obtainium fixes the single biggest practical problem with installing outside a store.
- Version: v1.6.11 · Size: 24.9 MB · Android: 7.0+ · Licence: open source · Developer: ImranR98 (Open Source)
Point it at where an app actually comes from — a GitHub releases page, a project's own website, an F-Droid repository — and it watches for new versions and installs them. A sideloaded APK is otherwise frozen at whatever version you installed, which is a security problem as much as a convenience one. At 4.9★ across 13,100 reviews it is the highest-rated app on this page.
The trade is a little setup per app, and you are trusting the source you point it at. That is the same trust you extended when you downloaded the APK in the first place; this just keeps it current.
Pick this one if: you install anything from outside the Play Store, which is the assumption of this entire list.
4. F-Droid — the open-source app store
F-Droid is a whole catalogue of free software, built from source by the project itself.
- Version: v1.20.0 · Size: 11.8 MB · Android: 5.0+ · Licence: open source · Developer: F-Droid Organization
Every app in it is free and open source, and F-Droid compiles them itself from published source rather than accepting a binary — which is a meaningfully stronger guarantee than "the developer says it is open source". It flags anti-features, like tracking or dependence on a proprietary service, right on the listing. At 4.7★ across 11,700 reviews it is the backbone of the Android free-software world.
The trade is that its builds lag behind the developer's own releases, sometimes by a lot, and the catalogue is smaller than the Play Store by orders of magnitude. Many people run F-Droid for discovery and Obtainium for the apps they want current.
Pick this one if: you want a store where everything is open source and audited for anti-features.
5. ReVanced Manager — patching apps yourself
ReVanced Manager is the tool that applies community patches to apps you already have.
- Version: v2.6.0 · Size: 44.7 MB · Android: 8.0+ · Licence: open source · Developer: ReVanced Team (Open Source)
You supply the original app, it applies open-source patches and produces a modified build — most famously to remove advertising and add background playback. It is the successor to the older Vanced project, and the manager itself is open source. At 4.8★ across 15,550 reviews it has a substantial following.
Two honest caveats. Patched apps are outside their vendor's terms of service, and using one with an account carries some risk to that account. And a patched app is a rebuilt app: only ever patch an original you obtained yourself, never install a pre-patched binary from a stranger.
Pick this one if: you understand the terms-of-service trade and want to patch an app you already use.
Controlling what leaves the phone
6. NetGuard — the firewall that needs no root
NetGuard is 3.1 MB and it does something genuinely powerful.
- Version: v2.337 · Size: 3.1 MB · Android: 5.1+ · Licence: open source · Developer: Marcel Bokhorst (Open Source)
Block any app from reaching the internet, per app, on Wi-Fi and on mobile data separately, with no root required — it works by running a local VPN service and filtering through it. It also logs which apps are trying to connect where, which is often more revealing than the blocking itself. At 4.7★ across 13,800 reviews it is a long-standing favourite.
The trade is the one-VPN limit: Android allows a single active VPN, so NetGuard and a commercial VPN cannot run at the same time. That is an Android constraint, not a flaw in the app.
Pick this one if: you want to see and stop what your apps talk to, without rooting the phone.
7. Tor Browser — the strongest anonymity available on a phone
Tor Browser is the most private browser here by a wide margin, and it is honest about its cost.
- Version: v14.0.4 · Size: 105.7 MB · Android: 8.0+ · Licence: open source · Developer: The Tor Project
Traffic is routed through multiple relays so no single point sees both who you are and what you are looking at. It is the official build from the Tor Project, and it is the right tool when the requirement is genuine anonymity rather than fewer ads. At 4.9★ across 7,420 reviews it is highly regarded by the people who need it.
The trade is speed and breakage. Multi-hop routing is slow, some sites block Tor exit nodes outright, and it is a heavy 105.7 MB install. This is a tool for a specific need, not a daily driver.
Pick this one if: you need anonymity, not just privacy, and you accept it will be slow.
8. DuckDuckGo — the daily browser that blocks trackers
DuckDuckGo is the practical middle ground: a normal browsing experience with tracking cut down.
- Version: v5.292.1 · Size: 118.6 MB · Android: 8.0+ · Licence: open source · Developer: DuckDuckGo
Tracker blocking on by default, forced HTTPS, a one-tap button to clear tabs and data, and app tracking protection that extends the blocking beyond the browser. At 4.8★ across 4,890 reviews it does the job it advertises without asking you to change how you browse.
The trade is size — 118.6 MB is the heaviest app on this page — and the fact that blocking trackers is not anonymity. Sites still see your IP address. It is a very good daily browser and it is not Tor.
Pick this one if: you want less tracking in normal browsing and you are not willing to give up speed.
9. Firefox Nightly — the browser with real extensions
Firefox Nightly exists on this list for one reason: extension support.
- Version: v110.0.1 · Size: 82.1 MB · Android: 8.0+ · Licence: open source · Developer: Mozilla
The Nightly channel allows a much wider set of add-ons than release Firefox on Android, which means a proper content blocker running inside a mainstream browser engine. For a power user that is the difference between a browser you tolerate and one you configure. At 4.8★ across 6,210 reviews it is well liked by exactly that audience.
The trade is in the name: Nightly is a pre-release build. It updates constantly, and it will occasionally break. Do not make it the browser you rely on for anything important.
Pick this one if: you want browser extensions on Android and you can tolerate an unstable channel.
Holding your secrets
10. KeePassDX — the modern offline vault
KeePassDX is the password manager for people who do not want a password company.
- Version: v4.4.5 · Size: 15.8 MB · Android: 5.0+ · Licence: open source · Developer: Kunzisoft (Open Source)
It opens a standard KeePass database file that lives wherever you put it — your phone, your own cloud, a synced folder — with no account and no service behind it. Biometric unlock, autofill, and a clean modern interface. At 4.8★ across 9,950 reviews it is the better-designed of the two KeePass clients here, and at 15.8 MB it is half the size of the other.
The trade is that you own the sync and the backup. There is no company to recover your vault, so a lost database file with no backup is a permanent loss.
Pick this one if: you want a password vault with no cloud account, and you will keep your own backups.
11. Keepass2Android Offline — the deliberately airtight one
Keepass2Android Offline is the same idea taken further: this build has no network permission at all.
- Version: v1.15-r3 · Size: 30.3 MB · Android: 5.0+ · Licence: open source · Developer: Philipp Crocoll (Croco Apps)
Because the Offline variant cannot access the network by design, there is no possibility of the app transmitting your vault anywhere — a guarantee enforced by Android's permission model rather than by trust. At 4.8★ across 4,620 reviews it has a devoted following among people who want that specific assurance.
The trade is that you sync the database file yourself, with another tool, and the app is a heavier 30.3 MB with an older interface than KeePassDX. That is the price of the guarantee.
Pick this one if: you want an enforced guarantee that your vault app cannot phone home.
12. Google Authenticator — the two-factor codes
Google Authenticator is the plain, universal option for time-based two-factor codes.
- Version: v7.0 · Size: 16.4 MB · Android: 7.0+ · Licence: freeware · Developer: Google LLC
It generates the standard six-digit TOTP codes that almost every service accepts, works offline, and now supports account transfer and optional cloud backup — which solves the old nightmare of losing every code with a lost phone. At 4.8★ across 41,200 reviews it is the default for good reason.
The trade is that it is closed source and it is Google's, which sits oddly on a list this open-source-heavy. It is here because it is the one that works everywhere. Enable the backup, and print your recovery codes.
Pick this one if: you need two-factor codes and you want the option every service supports.
Space and battery
13. SD Maid SE — the thorough cleaner
SD Maid SE is the most capable cleanup tool on this page, and it is open source.
- Version: v2.0.3-rc0 · Size: 16.6 MB · Android: 8.0+ · Licence: open source · Developer: d4rken-org (Open Source)
It finds leftover folders from uninstalled apps, duplicate files, empty directories and app caches, and it works with Shizuku to reach places a normal app cannot. It shows you exactly what it proposes to delete rather than presenting a single "clean" button. At 4.8★ across 11,000 reviews it is well trusted.
The trade is that it is a power tool that deletes things, and the version here is a release candidate. Read what it lists before you confirm.
Pick this one if: storage is full of debris from apps you no longer have, and you want to see the list first.
14. 1Tap Cleaner — the fast, simple sweep
1Tap Cleaner is the lightweight alternative for the same job.
- Version: v4.45 · Size: 6.8 MB · Android: 5.0+ · Licence: freeware · Developer: A0Soft
Clear caches, call and search history, and default app settings in one tap, from a 6.8 MB app. It does less than SD Maid and it does it faster and with less thought required. At 4.8★ across 28,400 reviews it has a big, satisfied audience.
The trade is depth: it sweeps caches, it does not hunt down orphaned folders. And modern Android is much better at managing its own cache than it used to be, so the gains are smaller than they were.
Pick this one if: you want a quick cache sweep with no configuration.
15. Files by Google — the sane default cleaner
Files by Google is the mainstream option, and it is genuinely good.
- Version: v1.4280.0 · Size: 18.4 MB · Android: 6.0+ · Licence: freeware · Developer: Google LLC
A file browser with smart cleaning suggestions — large files, duplicates, memes, screenshots, unused apps — plus offline file sharing between nearby phones. At 4.8★ across 58,200 reviews it is the most-reviewed cleaner here, and its suggestions are conservative in a good way.
The trade is that it is Google's, it is closed source, and it wants to talk about your cloud storage. As a safe default for someone who does not want a power tool, it is the right recommendation.
Pick this one if: you want cleanup suggestions you can trust without reading a deletion list carefully.
16. AccuBattery — the honest battery numbers
AccuBattery is the one app here that measures rather than promises.
- Version: v2.2.0 · Size: 14.2 MB · Android: 6.0+ · Licence: freeware · Developer: Digibites
It measures actual charge and discharge to estimate real battery capacity against the design capacity, tracks charging speed, and shows which apps drain the most. Over weeks it tells you honestly how much of your battery is left. At 4.8★ across 38,900 reviews it is well regarded.
The trade is that it needs time to calibrate — the first readings mean little — and it cannot improve the battery, only describe it. Every app claiming to extend battery life is doing something else; this one just measures.
Pick this one if: you want to know whether your battery is actually degraded before you pay to replace it.
Files
17. X-plore File Manager — the two-pane one
X-plore is the file manager for people who move files rather than browse them.
- Version: v4.38.22 · Size: 12.8 MB · Android: 5.0+ · Licence: freeware · Developer: Lonely Cat Games
A dual-pane layout that makes copying between two locations obvious, plus built-in access to SMB network shares, FTP, cloud storage and root if you have it. At 4.9★ across 38,200 reviews it is the highest-rated file tool here, and it is only 12.8 MB.
The trade is an interface that is dense and dated-looking. It is built for function, and the two-pane design is exactly why people who use it will not switch.
Pick this one if: you copy files between places, especially network shares, and you want it done efficiently.
18. ZArchiver — the archive tool
ZArchiver does one job completely, at 5.1 MB.
- Version: v1.0.9 · Size: 5.1 MB · Android: 4.0+ · Licence: freeware · Developer: ZDevs (Official)
It creates and extracts practically every archive format — ZIP, 7z, RAR, tar, gz and more — including password-protected and multi-part archives. It handles the file that other apps refuse to open. At 4.8★ across 11,900 reviews it is a quiet standard, and it runs on Android 4.0, older than anything else here.
The trade is nothing much: it is a single-purpose utility that does its purpose well and gets out of the way.
Pick this one if: you have ever been handed a .rar or a split archive on a phone.
19. Google Maps — the one nothing replaces
Google Maps is the pragmatic entry on a list of alternatives, because in this one category the open alternatives are genuinely behind.
- Version: v11.142.0102 · Size: 64.8 MB · Android: 8.0+ · Licence: freeware · Developer: Google LLC
Navigation, live traffic, transit routing, offline map areas you download in advance, and place data no other service matches in depth. At 4.8★ across 92,400 reviews it is the most-reviewed app on this page. The offline maps feature is the power-user part: download a region and navigation works with no signal at all.
The trade is location history and the tracking that comes with it. Turn off Location History and Web & App Activity in your account settings, use offline maps where you can, and you get most of the utility with less of the collection.
Pick this one if: you need navigation that works — and then go and turn off Location History.
The nineteen, side by side
| App | Job | Size | Android | Licence |
|---|---|---|---|---|
| Shizuku | Privileged access | 2.5 MB | 6.0+ | Open source |
| Termux | Terminal | 33.5 MB | 7.0+ | Open source |
| Obtainium | Updating | 24.9 MB | 7.0+ | Open source |
| F-Droid | Store | 11.8 MB | 5.0+ | Open source |
| ReVanced Manager | Patching | 44.7 MB | 8.0+ | Open source |
| NetGuard | Firewall | 3.1 MB | 5.1+ | Open source |
| Tor Browser | Anonymity | 105.7 MB | 8.0+ | Open source |
| DuckDuckGo | Browser | 118.6 MB | 8.0+ | Open source |
| Firefox Nightly | Browser | 82.1 MB | 8.0+ | Open source |
| KeePassDX | Passwords | 15.8 MB | 5.0+ | Open source |
| Keepass2Android | Passwords | 30.3 MB | 5.0+ | Open source |
| Authenticator | 2FA | 16.4 MB | 7.0+ | Freeware |
| SD Maid SE | Cleaning | 16.6 MB | 8.0+ | Open source |
| 1Tap Cleaner | Cleaning | 6.8 MB | 5.0+ | Freeware |
| Files by Google | Cleaning | 18.4 MB | 6.0+ | Freeware |
| AccuBattery | Battery | 14.2 MB | 6.0+ | Freeware |
| X-plore | Files | 12.8 MB | 5.0+ | Freeware |
| ZArchiver | Archives | 5.1 MB | 4.0+ | Freeware |
| Google Maps | Navigation | 64.8 MB | 8.0+ | Freeware |
What none of these fix
A cleaner does not make a phone faster. Modern Android manages its own memory and cache well. Clearing caches frees storage, and storage is not speed.
No app extends battery life. AccuBattery measures degradation honestly. Anything promising to extend a battery is managing your expectations, not your chemistry.
Blocking trackers is not anonymity. DuckDuckGo and NetGuard reduce what is collected. Only Tor tries to hide who you are, and it is slow for exactly that reason.
A sideloaded app is your responsibility. No store reviewed it. Obtainium keeps it current, which is the best available mitigation, but the trust decision stays with you.
The two-minute version
Install these three first: Shizuku at 2.5 MB, Obtainium so nothing you sideload goes stale, and NetGuard at 3.1 MB to see what your apps are talking to.
Passwords? KeePassDX — no account, no company, your file.
A browser? DuckDuckGo daily, Tor when it actually has to be anonymous.
Storage full? SD Maid SE if you will read the list, Files by Google if you would rather not.
Every app named here resolves to a page in the FileCobra catalogue — the build fails if one does not. Versions, package sizes and system requirements are read from that catalogue rather than written by hand. Where our ingestion worker has fetched a release itself, it records a SHA-256 of the exact file we serve and publishes it on the app’s page. We do not run an antivirus lab: where a VirusTotal report exists we link it, and where none exists we say so rather than imply one.
Rehman Ahmad
VERIFIED AUTHORChief Technology Officer & Lead Systems Auditor at FileCobra
Rehman specializes in Android operating system internals, cryptographic integrity verification, reverse engineering APK packaging architectures, and high-performance audio/video DSP pipelines. He directs the security verification and release ingestion infrastructure across FileCobra.
Apps covered in this guide
-
Termux
0.118.3 · 33.48 MB · Open Source
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Shizuku
13.6.0 · 2.45 MB · Open Source
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Obtainium
1.6.14 · 24.22 MB · Open Source
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F-Droid
1.20.0 · 11.85 MB · Open Source
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ReVanced Manager
2.6.0 · 44.69 MB · Open Source
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NetGuard
2.337 · 3.07 MB · Open Source
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Tor Browser
14.0.4 · 100.83 MB · Open Source
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DuckDuckGo Privacy Browser
5.294.1 · 119.29 MB · Open Source
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Firefox Nightly
110.0.1 · 82.07 MB · Open Source
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KeePassDX
4.5.3 · 15.97 MB · Open Source
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KeePass2Android
1.15-r3 · 30.27 MB · Open Source
-
Google Authenticator
7.0 · 7.49 MB · Freeware
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SD Maid SE
2.0.4-rc0 · 16.98 MB · Open Source
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1Tap Cleaner
4.45 · 13.75 MB · Freeware
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Files by Google
1.4280.0 · 23.67 MB · Freeware
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AccuBattery
2.2.0 · 19.56 MB · Freeware
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X-plore File Manager
4.38.22 · 17.07 MB · Freeware
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ZArchiver
1.0.9 · 4.94 MB · Freeware
-
Google Maps
11.142.0102 · 287.67 MB · Freeware
Frequently asked questions
What does Shizuku actually do?
Shizuku at v13.6.0 gives other apps access to system APIs that normally require root, by running an ADB service that those apps can talk to. It is 2.5 MB and it is the reason several powerful utilities work on an unrooted phone — a supported app asks Shizuku, and Shizuku does the privileged part. You start it once per boot, either from a computer over ADB or, on Android 11 and later, through wireless debugging on the phone itself.
Why use Obtainium instead of just downloading APKs?
Because a sideloaded APK never updates itself. Obtainium at v1.6.11 watches the actual source — a GitHub releases page, a project's own site, an F-Droid repository — and tells you when a new version appears, then installs it. That solves the single biggest practical problem with installing apps outside a store, and it is the app to set up first if you sideload anything at all.
Is NetGuard a real firewall without root?
Yes, with one caveat worth knowing. NetGuard at v2.337 works by running a local VPN service on the device and filtering traffic through it, which is how it blocks apps from reaching the internet with no root required. The caveat is that Android allows only one active VPN at a time, so you cannot run NetGuard and a commercial VPN simultaneously. At 3.1 MB it is one of the smallest genuinely useful apps here.