Comparison

OTP Auth vs FreeOTP Authenticator

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

Head to head
About

OTP Auth

Enhance your account security with two-factor authentication on your iPhone and iPad. This app supports numerous popular services and offers robust encryption for all your data. It works offline and prioritizes user privacy by not collecting or transmitting personal information.

Highlights
  • Two-factor authentication support
  • Encrypted iCloud Sync
  • Siri and Apple Watch support
  • Notification Center widget
  • Safari extension for password pasting
  • Face ID/Touch ID security
  • Encrypted backups and import/export
Read full description

OTP Auth adds support for two-factor authentication to your iPhone and iPad. It can be used with Dropbox, Facebook, GitHub, Google Mail and many more. Make your accounts safe again! Features: - Ads free - Encrypted iCloud Sync - Siri Support - Apple Watch support - Notification Center widget - Safari extension for pasting passwords into websites - Secure application using Face ID/Touch ID (or password) - Create encrypted backups of all accounts - Import/Export encrypted accounts using AirDrop, iCloud, Dropbox, Mail, ... - Works offline All data stored by OTP Auth is stored using strong AES-256 encryption. This applies for all data. In particular, for both locally stored data as well as data stored in the iCloud Drive (when iCloud Sync is enabled). The password for those files never leaves your device such that noone but you can read your data. OTP Auth does not collect information about you or send them anywhere. You won't be asked to allow access to your contacts or your location. And most important: OTP Auth does not connect to the internet and will not send your accounts to someone else! (Unless you enable iCloud sync where an AES-256 encrypted copy of your accounts is stored in your iCloud Drive. The password for that copy will never leave your phone.) Follow me on Twitter: @otpauth

About

FreeOTP Authenticator

Generate one-time passwords for enhanced online account security. This app creates temporary codes that, when used with your regular password, significantly strengthen your login protection. It functions even without an internet connection.

Highlights
  • Generates one-time passwords
  • Works offline (airplane mode)
  • Supports Google, Facebook, GitHub, etc.
  • Compatible with TOTP/HOTP protocols
  • Open source software
Read full description

FreeOTP adds a second layer of security for your online accounts. This works by generating one-time passwords on your mobile devices which can be used in conjunction with your normal password to make your login nearly impossible to hack. These passwords can be generated even when your phone is in airplane mode. FreeOTP works with many of the great online services you already use, including Google, Facebook, Evernote, GitHub and many more! FreeOTP also may work for your private corporate security if they implement the standardized TOTP or HOTP protocols. This includes great enterprise solutions like FreeIPA. FreeOTP is open source and free software! Licensed under the Apache 2.0 license, you can obtain the source code for FreeOTP at https://fedorahosted.org/freeotp for review or modification. Contributions are welcome!

Screenshots

OTP Auth4 screens
FreeOTP Authenticator2 screens

Verdict

The call

The clearest difference is rating: OTP Auth at 4.6 against FreeOTP Authenticator's 3.2. OTP Auth also leads on review sentiment (78% vs 37%) and update cadence (every 2 weeks vs every 6 months). FreeOTP Authenticator's advantage is in-app purchases (none vs 1). On price, ratings volume, 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. OTP Auth sells 1 one-off in-app purchase. FreeOTP Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OTP Auth holds the better App Store score, 4.6 against 3.2. Both are backed by a comparable volume of ratings — 463 and 173 respectively. Written reviews point the same way: 78% of OTP Auth's written reviews are positive against 37% of FreeOTP Authenticator's.

UpkeepUpdate frequency

OTP Auth ships an update every 2 weeks, FreeOTP Authenticator every 6 months. The most recent releases landed on July 22, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
OTP Auth versus FreeOTP Authenticator: the parameters behind the verdict, then further details
ParameterOTP AuthFreeOTP Authenticator
PriceFreeFree
Rating4.6 (463 ratings) — better3.2 (173 ratings)
Positive reviews77.9% of reviews — better37.0% of reviews
Number of ratings463 — better173
Update frequencyEvery 2 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size22 MB11 MB
Age rating4+4+
DeveloperRoland MoersRed Hat

Customer experience

OTP Auth

All ratings463 ratings
Positive90.3%
Neutral2.6%
Negative7.1%
Written reviews204 reviews
Positive77.9%
Neutral5.9%
Negative16.2%

FreeOTP Authenticator

All ratings173 ratings
Positive49.1%
Neutral9.8%
Negative41.0%
Written reviews189 reviews
Positive37.0%
Neutral10.6%
Negative52.4%

User reviews

OTP Auth

From 463 App Store ratings

What we love

  • 🚀 Simple and effective
  • 🔒 Secure with backup/restore
  • 👍 Great Apple Watch support
  • 👍 Intuitive and user-friendly
  • 👍 Customizable icons and folders

Room to improve

  • 🐛 Occasional sync and widget issues
  • 🐛 Apple Watch app needs improvements
  • 🐛 Unreliable backup/restore for some users
  • 🐛 Crashes and bugs reported by a few

FreeOTP Authenticator

From 173 App Store ratings

What we love

  • 🚀 Simple and lightweight
  • 🔒 Open source and privacy-focused
  • 👍 Clean and intuitive interface
  • 💡 Customizable icons for accounts

Room to improve

  • 🐛 Crashes and bugs after recent updates
  • 🔒 Lack of backup/restore functionality
  • 💡 Limited customization options
  • 👎 Unable to edit or delete accounts

Bugs and requests

OTP Auth

Reported bugs

3 issues
  • Sync issues causing data loss
  • Widget not displaying codes correctly
  • Crashes on certain iOS versions

Requested features

4 requests
  • Larger text/font size options
  • Alphabetical sorting of accounts
  • Automatic account refresh/update
  • Ability to edit account details

FreeOTP Authenticator

Reported bugs

3 issues
  • Camera not working for QR code scanning
  • App crashing on launch or when unlocking accounts
  • UI issues on larger iOS devices

Requested features

4 requests
  • Add ability to manually enter account details
  • Implement iCloud/cloud backup sync
  • Allow renaming and deleting of accounts
  • Provide Apple Watch support

In-app purchases

1 purchases

OTP Auth

One-time1
  • OTP Auth Pro$3.99
None

FreeOTP Authenticator

No in-app purchases

Questions

Is OTP Auth free?
OTP Auth is free to download, with in-app purchases available.
Is FreeOTP Authenticator free?
FreeOTP Authenticator is free to download, with no in-app purchases.
Which has better reviews, OTP Auth or FreeOTP Authenticator?
OTP Auth is rated higher. OTP Auth averages 4.6 out of 5 from 463 ratings, while FreeOTP Authenticator averages 3.2 from 173 ratings.
Do OTP Auth or FreeOTP Authenticator have ads?
Neither OTP Auth nor FreeOTP Authenticator shows ads.
Which is updated more often, OTP Auth or FreeOTP Authenticator?
OTP Auth ships an update every 2 weeks, and FreeOTP Authenticator every 6 months. Most recently, OTP Auth was updated on July 22, 2026 and FreeOTP Authenticator on September 23, 2026.

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