Comparison

Open Authenticator by Skyost vs Authenticator

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

Head to head
About

Open Authenticator by Skyost

This app generates Time-Based One-Time Passwords (TOTPs) to enhance online account security through two-factor authentication. It offers cross-platform syncing, a self-hostable backend, and an intuitive interface for managing your security codes.

Highlights
  • Generates Time-Based One-Time Passwords (TOTPs)
  • Enhances online account security with 2FA
  • Cross-platform token syncing
  • Self-hostable backend option
  • Fast and easy-to-use interface
  • Open-source and free for local use
Read full description

PROTECT YOUR ONLINE ACCOUNTS WITH OPEN AUTHENTICATOR Open Authenticator generates Time-Based One-Time Passwords (TOTPs), which serve as the second factor in the 2FA process. These temporary codes are valid for a short period of time and are used alongside your password to verify your identity when logging into your accounts. This significantly enhances the security of your online accounts and protects them from unauthorized access. KEY FEATURES - Open-Source & Free to use : Our commitment to transparency and security means our app is open-source and will always remain free for local use. If it doesn't cost anything for us, then it shouldn't cost anything for you ! - Cross-Platform Compatibility : Seamlessly sync your TOTP tokens across all your devices, whether you're using iOS, macOS or another platform. - Self-Hostable Backend : You can host the backend on your own server. Your data, your choice. - A lovely crafted app : Open Authenticator has been designed to be fast and easy to use. Quickly find all your TOTPs and copy them directly from the main page ! IN SUMMARY, WHY OPEN AUTHENTICATOR ? Here are the reasons why you should download Open Authenticator : - Enhanced Security : Protect your online accounts from unauthorized access with strong 2FA. - User-Friendly Interface : Intuitive design makes it easy to add, manage, and organize your TOTP tokens. - Continuous Improvement : We're dedicated to delivering the best user experience and regularly update our app with new features and improvements. LINKS - Check it out on Github : https://github.com/openauthenticator-app/openauthenticator - Visit our website : https://openauthenticator.app LEGAL - Privacy policy : https://openauthenticator.app/privacy-policy - Terms of service : https://openauthenticator.app/terms-of-service

About

Authenticator

Secure your online accounts with two-factor authentication (2FA). Easily generate and store one-time codes by scanning QR codes or entering details manually. Offers data breach monitoring and a basic password manager for free, with premium features available via subscription.

Highlights
  • Two-factor authentication (2FA) code generation
  • QR code scanning for setup
  • Broad service compatibility
  • Data breach monitoring
  • Basic password manager
  • Unlimited 2FA accounts (subscription)
  • Unlimited password manager with autofill (subscription)
Features
Read full description

Protect your online accounts with two-factor authentication (2FA) using Authenticator, a reliable way to generate and store secure codes. Just scan the QR code or enter the details manually to generate a one-time code and access your favorite service. Why Choose Authenticator? - Quick & Easy Setup: Enable 2FA for your account instantly by scanning a QR code - Broad Compatibility: Works with thousands of popular services, making it easy to connect and streamline your login process. - Sleek Design: Features a modern, user-friendly interface that simplifies managing your 2FA codes. Get started with free essentials, and upgrade for full access. Free features include: - Data Breach Monitoring: Check if your personal data has been compromised in the Dark Web. - Basic Password Manager: Securely store a limited number of your most important passwords. With a subscription, you also get: - Unlimited 2FA Accounts: Secure every social, financial, and work account you own without limits. - Unlimited Password Manager: Store unlimited passwords with autofill capabilities. - Premium Security: Access advanced backup and synchronization features. Subscription Information: Payment will be charged to your iTunes Account upon purchase confirmation. Subscriptions automatically renew unless you turn off auto-renewal at least 24 hours before the current period ends. Your account will be charged for renewal within 24 hours before the end of the current period. Manage your subscriptions and disable auto-renewal in your Account Settings. When you use a trial subscription, you will be charged the full subscription price for the selected period after it expires. Please cancel your subscription at least 24 hours before the end of the trial period. This app is not connected to, endorsed by, or affiliated with any third-party platforms or services it is compatible with. Privacy Policy: http://pp.myauthenticator.pro/ Terms of Use: http://tou.myauthenticator.pro/ For support or inquiries, please email us at: kuprenkovitalii@gmail.com

Screenshots

Open Authenticator by Skyost3 screens
Authenticator4 screens

Verdict

The call

The clearest difference is review sentiment: Authenticator at 75% against Open Authenticator by Skyost's 0%. Authenticator also leads on ratings volume (2.5K vs 9) and rating (4.7 vs 4.4). Open Authenticator by Skyost's advantage is ads (none vs shown) and device support (4 vs 2). On price, update cadence, in-app purchases and monetization model 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. Open Authenticator by Skyost sells 2 in-app purchases, starting at $0.99 per month and Authenticator sells 14 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Authenticator holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Authenticator has 2.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 0% of Open Authenticator by Skyost's written reviews are positive against 75% of Authenticator's.

UpkeepUpdate frequency

Open Authenticator by Skyost ships an update fortnightly, Authenticator every 4 weeks. Both last shipped on October 14, 2026.

Scorecard6 real differences · 4 level
Open Authenticator by Skyost versus Authenticator: the parameters behind the verdict, then further details
ParameterOpen Authenticator by SkyostAuthenticator
PriceFreeFree
Rating4.4 (9 ratings)4.7 (2.5K ratings) — better
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings92.5K — better
Update frequencyFortnightly — betterEvery 4 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Mac — betteriPhone, Apple Watch
Requires iOS15.0 — better17.0
Further details — not scored
Size56 MB202 MB
Age rating4+4+
DeveloperHugo DelaunayVitalii Kuprenko

Customer experience

Open Authenticator by Skyost

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Authenticator

All ratings2,459 ratings
Positive91.6%
Neutral3.3%
Negative5.2%
Written reviews224 reviews
Positive75.0%
Neutral4.9%
Negative20.1%

Bugs and requests

Open Authenticator by Skyost

Not enough reviews yet to summarise bugs or requests.

Authenticator

Reported bugs

3 issues
  • Login screen freezes
  • Incompatible with older devices
  • Unable to access 2FA for some services

Requested features

1 request
  • Dark mode option

In-app purchases

2 purchases

Open Authenticator by Skyost

Subscriptions2
  • Contributor Plan: Monthly$0.991 Month
  • Contributor Plan: Annual$9.991 Year
14 purchases

Authenticator

Subscriptions12
  • Weekly PRO Access7 Days trial$3.997 Days
  • Monthly PRO Access3 Days trial$4.991 Month
  • Weekly PRO Access3 Days trial$4.997 Days
Show 9 more
  • Weekly PRO Access$6.997 Days
  • Unlimited Access3 Days trial$7.997 Days
  • Weekly PRO Access3 Days trial$9.997 Days
  • Weekly PRO Access$9.997 Days
  • Weekly PRO Access3 Days trial$11.997 Days
  • Annual Pro Access$29.991 Year
  • Annual Unlimited Access$39.991 Year
  • Annual Pro Access$59.991 Year
  • Unlimited Access3 Days trial$59.991 Year
One-time2
  • Forever Unlimited Access$59.99
  • Forever Unlimited Access$69.99

Questions

Is Open Authenticator by Skyost free?
Open Authenticator by Skyost is free to download, with in-app purchases available.
Is Authenticator free?
Authenticator is free to download, with in-app purchases available.
Which has better reviews, Open Authenticator by Skyost or Authenticator?
Authenticator is rated higher. Open Authenticator by Skyost averages 4.4 out of 5 from 9 ratings, while Authenticator averages 4.7 from 2.5K ratings.
Do Open Authenticator by Skyost or Authenticator have ads?
Authenticator shows ads; Open Authenticator by Skyost does not.
Which is updated more often, Open Authenticator by Skyost or Authenticator?
Open Authenticator by Skyost ships an update fortnightly, and Authenticator every 4 weeks. Most recently, Open Authenticator by Skyost was updated on October 14, 2026 and Authenticator on October 14, 2026.

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