Comparison

FastAuth Authenticator vs 2FA Authenticator

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

Head to head
About

FastAuth Authenticator

This app generates one-time passwords for secure logins to various online services. It offers easy setup via QR code scanning or manual token entry, with all data stored securely on your device.

Highlights
  • Generate one-time passwords
  • Scan QR codes for setup
  • Manual token addition
  • Tap to copy passwords
  • Offline data storage
  • Encrypted data storage
Features
Read full description

FastAuth is a simple 2-step authenticator app. It generates unique one-time passwords which you use to log in to supported websites and services. Features: - Scan QR Code or add Token manually - Tap on password to copy - No data leaves your device FastAuth will help you to keep you accounts secured with all data stored in encrypted form on the iOS keychain.

About

2FA Authenticator

Secure your online accounts with this app that generates and stores two-factor authentication codes. Easily scan QR codes for setup and benefit from offline functionality and iCloud backup. Protect your digital identity with robust security features.

Highlights
  • Generate 2FA/MFA tokens
  • Scan QR codes for setup
  • iCloud backup and sync
  • Passcode protection
  • Offline functionality
  • Support for 1000+ services
Features
Read full description

Never get locked out of an account again. AuthenticKey is the 2FA authenticator app built around the one thing other authenticators get wrong: moving to a new iPhone. Generate secure two-factor authentication codes for Google, Microsoft, Apple, Facebook, Instagram, GitHub, Coinbase and 1000+ other services — backed up through your private iCloud and ready the moment you sign in on a new device. WHY AUTHENTICKEY Most authenticator apps trap your 2FA codes on a single device. Lose the phone, factory reset, or upgrade to a new iPhone — and you're locked out of every account, hunting for recovery codes you never saved. AuthenticKey fixes this with end-to-end encrypted iCloud sync. Your codes follow your Apple ID, not your hardware. KEY FEATURES • One-tap setup — scan any 2FA QR code in seconds • Encrypted iCloud sync across iPhone and iPad • Apple Watch app — generate codes from your wrist (Premium) • Home Screen widget for instant code access (Premium) • Face ID, Touch ID and passcode lock for the app itself • Auto-clearing clipboard — copied codes wipe after 30 seconds • Works offline — TOTP and HOTP codes generate without internet • Supports SHA-1, SHA-256 and SHA-512 algorithms • Full RFC 6238 (TOTP) and RFC 4226 (HOTP) standard compliance • 11 languages: English, Spanish, French, German, Italian, Portuguese, Dutch, Korean, Japanese, Norwegian, Swedish MOVE TO A NEW IPHONE WITHOUT LOSING ACCESS Sign into iCloud on your new device, open AuthenticKey, and every account is exactly where you left it. No screenshots of recovery codes. No 30-minute account recovery flows. No emails to support teams. Migration that actually works. WORKS WITH 1000+ SERVICES Google · Microsoft · Apple · Amazon · Facebook · Instagram · X (Twitter) · Snapchat · TikTok · Discord · GitHub · Slack · Zoom · Dropbox · Coinbase · Binance · Kraken · KuCoin · Crypto.com · PayPal · Stripe · AWS · Azure · Salesforce · Okta · Duo · Cloudflare · Twitch · PlayStation · Xbox · Steam · Epic Games · LinkedIn · Reddit · Shopify · Notion · 1Password · LastPass · Bitwarden · ProtonMail · Tutanota · Fastmail — and any service supporting standard TOTP or HOTP. PERFECT FOR → Crypto traders securing Coinbase, Binance and Kraken accounts → Developers managing AWS, GitHub and Cloudflare access → Remote teams using Microsoft 365, Google Workspace and Slack → Anyone who's lost 2FA codes during an iPhone upgrade → Privacy-conscious users who want their secrets to stay on Apple's hardware HOW WE PROTECT YOUR DATA Your 2FA secrets are encrypted on your device with AES-256-GCM and stored in the iOS Keychain. Sync uses your private iCloud — Apple can't read your codes and neither can we. We never see, store, or transmit your 2FA secrets in any form. For app improvement and crash diagnostics we collect anonymous usage statistics. Your 2FA secrets are never part of that data and never leave your device unencrypted. FREE VS PREMIUM Free: Core 2FA authenticator with iCloud backup, biometric lock and QR scanning. Premium unlocks: • Unlimited accounts • Custom sorting and reordering • Apple Watch sync • Home Screen widget code display • Priority support SUPPORT Email: info@authentickey.app Privacy Policy & Terms: https://authentickey.app/privacy

Screenshots

FastAuth Authenticator4 screens
2FA Authenticator4 screens

Verdict

The call

The clearest difference is review sentiment: 2FA Authenticator at 75% against FastAuth Authenticator's 0%. 2FA Authenticator also leads on rating (4.5 vs 2.3) and ratings volume (154 vs 3). FastAuth Authenticator's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price 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. 2FA Authenticator sells 5 in-app purchases, starting at $9.99 per 7 days. FastAuth Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

2FA Authenticator holds the better App Store score, 4.5 against 2.3. That said, the two scores are not equally well evidenced: 2FA Authenticator has 154 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of FastAuth Authenticator's written reviews are positive against 75% of 2FA Authenticator's.

Scorecard7 real differences · 3 level
FastAuth Authenticator versus 2FA Authenticator: the parameters behind the verdict, then further details
ParameterFastAuth Authenticator2FA Authenticator
PriceFreeFree
Rating2.3 (3 ratings)4.5 (154 ratings) — better
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings3154 — better
Update frequency—Every 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS9.0 — better16.4
Further details — not scored
Size23 MB71 MB
Age rating4+4+
DeveloperRubo ManukyanAdSpark OU

Customer experience

FastAuth Authenticator

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

2FA Authenticator

All ratings154 ratings
Positive88.3%
Neutral3.9%
Negative7.8%
Written reviews12 reviews
Positive75.0%
Neutral8.3%
Negative16.7%

In-app purchases

None

FastAuth Authenticator

No in-app purchases

5 purchases

2FA Authenticator

Subscriptions5
  • Premium Weekly$9.997 Days
  • Premium Monthly3 Days trial$9.991 Month
  • Premium Yearly Offer$19.991 Year
Show 2 more
  • Premium Yearly Trial3 Days trial$39.991 Year
  • Premium Yearly$39.991 Year

Questions

Is FastAuth Authenticator free?
FastAuth Authenticator is free to download, with no in-app purchases.
Is 2FA Authenticator free?
2FA Authenticator is free to download, with in-app purchases available.
Which has better reviews, FastAuth Authenticator or 2FA Authenticator?
2FA Authenticator is rated higher. FastAuth Authenticator averages 2.3 out of 5 from 3 ratings, while 2FA Authenticator averages 4.5 from 154 ratings.
Do FastAuth Authenticator or 2FA Authenticator have ads?
2FA Authenticator shows ads; FastAuth Authenticator does not.

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