Comparison

RSA Lab vs StealthOS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RSA Lab

Features
Read full description

You can use RSA Lab to generate RSA keys, decrypt encrypted messages and encrypt messages.  You can also store and name your RSA private and public keys in RSA Lab. All data in RSA Lab is synchronized on the iCloud.

About

StealthOS

This app provides a secure, private browsing experience with advanced anti-fingerprinting, built-in Tor, and encrypted storage. It offers an on-device AI assistant and a virtual desktop environment for enhanced productivity and research.

Highlights
  • Anti-fingerprinting technology
  • Built-in Tor browser
  • AES-256 encrypted storage
  • On-device AI assistant
  • Virtual desktop environment
  • Password manager with TOTP
  • AI-powered phishing detection
Features
Read full description

Private browser with Tor, PGP encryption, password manager and encrypted vault in one app. No account, no ads, no tracking. Your data stays encrypted on your iPhone. StealthOS puts a whole private workspace inside iOS: a browser that resists fingerprinting and warns you about phishing, real PGP for your messages, AES-256 storage for your files and passwords, built-in Tor, and end-to-end encrypted chat with voice and video. All of it behind an app lock with Face ID and a recovery key. PGP AND OPENPGP ENCRYPTION Real PGP, not a lookalike. What you write here opens in the tools everyone else uses. - Encrypt, decrypt, sign and verify with OpenPGP - Works with GnuPG, GPG, Proton Mail, Thunderbird and Kleopatra - Ed25519, Curve25519, Brainpool and RSA keys up to 4096 bit - Keyring with fingerprint verification, so you know who you are writing to - Share a public key or an encrypted message as a .asc file - Spot PGP blocks on a web page and open them in one tap PRIVATE BROWSER - Anti-fingerprint protection for Canvas, WebGL, Audio, Fonts, Timezone, Screen and Navigator - Phishing warnings for fake login pages, scam sites and look-alike domains - Block any website from reaching your camera or microphone - WebRTC leak blocking and HTTPS-first browsing - Encrypted history, bookmarks and downloads, with session restore - Address bar suggestions computed offline, so what you type stays on the device - DNS-over-HTTPS and proxy support TOR BROWSER BUILT IN - Tor with .onion support, no second app to install - Kill switch if Tor or your proxy drops - New circuit on demand PASSWORD MANAGER AND ENCRYPTED VAULT - AES-256-GCM storage with keys protected by the Secure Enclave - Fills usernames, passwords and two-factor codes into websites - Password generator and strength scoring - TOTP two-factor codes with QR scanning - File manager for documents, photos and downloads, with an image, video and Markdown viewer ENCRYPTED CHAT, VOICE AND VIDEO - End-to-end encrypted messaging, voice calls and video calls - Peer-to-peer nearby, or through a relay when you are apart - Open-source StealthRelay you can host yourself - Route the app's traffic through your own relay - Pools stay alive while you are offline, so friends keep talking APP LOCK, SNAPSHOTS AND DURESS - App lock with password, Face ID and a one-time recovery key - One encrypted snapshot holds your files, passwords, notes, browser data and settings - Locked with your passkey alone, so it restores after a reset or a new install - Keep it in Files or iCloud Drive. We keep no copy and cannot recover it for you - Duress password that wipes everything on entry AI ASSISTANT - Writing, coding, tutoring, planning, research and analysis profiles - Voice mode, web research, calculator, weather and file tools - Runs on device. Needs iOS 26 or later with Apple Intelligence NOTES, DESKTOP AND TOOLS - Notes with voice, reminders, transcription, summaries and checklists - Virtual desktop with movable windows, folders and themes, on iPhone and iPad - 15+ built-in apps and multiplayer games PREMIUM - Up to 10 device fingerprint profiles - SSH Terminal and Linux Shell - Code Editor with syntax highlighting - NetMap network inspector PRIVACY BY DESIGN - No account, no sign-up, no email - No ads and no tracking across apps or websites - Your files, passwords, notes and history are encrypted on your device - Core features work with no connection at all Terms of Use: https://www.stealthos.app/terms Privacy Policy: https://www.stealthos.app/privacy

Screenshots

RSA Lab3 screens
StealthOS4 screens

Verdict

The call

The clearest difference is in-app purchases: RSA Lab at none against StealthOS's 2. RSA Lab also leads on iOS requirement (16.2 vs 18.0). StealthOS's advantage is update cadence (weekly vs every 42 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StealthOS sells 2 in-app purchases, starting at $4.99 per month. RSA Lab asks for nothing beyond the download.

UpkeepUpdate frequency

RSA Lab ships an update every 42 months, StealthOS weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
RSA Lab versus StealthOS: the parameters behind the verdict, then further details
ParameterRSA LabStealthOS
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 42 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better18.0
Further details — not scored
Size1 MB221 MB
Age rating4+17+
Developer杨洋 冯Olib AI

In-app purchases

None

RSA Lab

No in-app purchases

2 purchases

StealthOS

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium$49.991 Year

Questions

Is RSA Lab free?
RSA Lab is free to download, with no in-app purchases.
Is StealthOS free?
StealthOS is free to download, with in-app purchases available.
Do RSA Lab or StealthOS have ads?
Neither RSA Lab nor StealthOS shows ads.
Which is updated more often, RSA Lab or StealthOS?
RSA Lab ships an update every 42 months, and StealthOS weekly. Most recently, RSA Lab was updated on October 27, 2026 and StealthOS on October 28, 2026.

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