# iD: Authenticator App — RSA Secure ID Authentication > Secure, encrypted authenticator app with import and backup features. (iPhone/iPad app by 丹丹 李.) - Source: https://appshunter.io/ios/app/id-authenticator-app/id6478457556 (this page in markdown: same URL + `.md`) - Developer: [丹丹 李](https://appshunter.io/developer/1666474477) - Category: Lifestyle, Productivity - Price: Free with in-app purchases - Rating: 4.50/5 from 31 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 8 MB - Languages: American English, French (France), Japanese - Released: 2024-02-26 - Data updated: 2026-08-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/id-authenticator-app/id6478457556/reviews.md ## What is iD? Feature Overview • Secure  • Encrypted, can be unlocked with a password or biometrics  • Tap to reveal • Compatible with Google/Microsoft Authenticator • Supports industry standard algorithms: HOTP and TOTP • Lots of ways to add new entries  • Scan a QR code or an image of one  • Enter details manually  • Import from other popular authenticator apps • Organization  • Custom or automatically generated icons  • Advanced entry editing  • Search by name/issuer • Automatic backups of the vault to iCloud Terms of Use: https://lidandan199109.wixsite.com/duo2fa/terms-of-use Privacy Policy: https://lidandan199109.wixsite.com/duo2fa/privacy-policy ## Key features - Encrypted vault with password/biometric unlock - Compatible with Google/Microsoft Authenticator - Supports HOTP and TOTP algorithms - QR code scanning and manual entry - Import from other authenticator apps - Custom icons and search functionality - Automatic iCloud backups ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly premium | $59.99 | per year | | Weekly premium | $4.99 | per 7 days | ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/id-authenticator-app/id6478457556/reviews.md ### 5/5 — It’s great *2025-10-15* Easy to use ### 5/5 — Makes you do this to restore iCloud back up *2025-10-10* They are making me do this so I can back up my previous password and websites that I had saved. I dropped my phone and was unable to get into any of my accounts and apps like these make it very difficult. Two factor authentication is nice until you only have one device ### 5/5 — The world is filled with *2025-09-21* The world is filled with fleeting moments that often go unnoticed, yet they shape our lives in subtle ways. A smile from a stranger, the warmth of morning sunlight, or the rhythm of footsteps on a quiet street can carry meaning beyond words. Creativity thrives in these ordinary details, transforming them into stories, images, or sounds that resonate deeply. Every experience is a fragment of a larger narrative, waiting to be discovered and expressed. When we pause to observe, listen, and reflect, we uncover beauty in simplicity, and in doing so, we learn more about ourselves and the world around us. ### 5/5 — M *2025-09-21* Duo authenticator is a very useful app for everything you need to know about the app and how to use it to help you get started with your app development ### 5/5 — Duo *2025-06-04, version 1.0* Very very very very very very very good good luck with that I love the way that you’re going with it and I’m very excited about the opportunity for the new product to come in and we can all be very excited about that we have to get it done soon so hopefully you can make it happen for you guys have fun with it and we will see how things will go and see how things are going with your new product that will hopefully make it better for us to see the new products in the market I think we have some great things coming in this coming season I hope and we can get to do and I will see it and we can make sure that you can do that for sure and we can all get together for the future I hope to hear back soon and we will see how it goes good job on your journey is very exciting times ahead ### 5/5 — Excellent *2025-04-23* Best authenticator on line! ### 5/5 — Facebook *2024-10-06* Facebook ### 1/5 — Where is the app? *2024-10-02* All I can see are advertisements. Nothing actually works. ### 5/5 — Great *2024-09-17* Amao ### 5/5 — Best Authenticator *2024-07-12* I just got this Authenticator App and was offered a Free, Yes Free Lifetime membership. Talk about great a great promotional. I should try something like that. Anyway Facebook asked that I get this particular App to use for security and 2 step verification for added security on my account since I’ve been recently hacked. So far this has been the best Authenticator. Super easy to use, that makes me very happy indeed!!! So if you’re looking for an AuthenticatorApp, look no further. Get this one. You’ll be very happy!!! Thanks Duo for your great customer service, great product! And most of all, excellent pricing. ## Frequently asked questions about iD ### What is Duo's primary function? Duo is an authenticator app designed to generate secure, encrypted two-factor authentication codes for your online accounts. It supports industry-standard algorithms like HOTP and TOTP, making it a versatile tool for enhancing account security. ### How does Duo protect my authentication codes? Duo's vault is encrypted and can be unlocked using a password or biometrics, ensuring that your sensitive authentication codes are protected. The 'tap to reveal' feature adds an extra layer of security when accessing codes. ### Can I import my existing authenticator codes into Duo? Yes, Duo offers convenient ways to add new entries, including importing from other popular authenticator apps. You can also scan QR codes or enter details manually. ### Does Duo offer automatic backups? Yes, Duo provides automatic backups of your vault to iCloud. This ensures that your authentication codes are safely stored and can be restored if needed. ### What are the subscription options for Duo? Duo offers a weekly premium subscription for $4.99/week and a yearly premium subscription for $59.99/year. These subscriptions likely unlock additional features or remove limitations. ### Does Duo have ads? Yes, Duo contains advertisements. Users may encounter ads within the application as part of its free offering. ### Is Duo available on Android devices? Based on the provided data, Duo is supported on iPhone, iPad, and iPod. It is not explicitly mentioned as being available on Android devices. ### How often is Duo updated? Duo was last updated on February 26, 2024, with version 1.0. This indicates it is a relatively new application, and further updates are expected. ## Version history (last 2 releases) ### 1.1.0 — 2026-01-04 - Rename to iD Authenticator - Fixes bugs ### 1.0 — 2024-02-26 No release notes. ## More apps by 丹丹 李 - [Authenticator™ Full Protection](https://appshunter.io/ios/app/authenticator-full-protection/id1669903479) - [Amp Volume Booster: Boom me dB](https://appshunter.io/ios/app/amp-volume-booster-boom-me-db/id1671980849) - [Mobile Protection for iPhone](https://appshunter.io/ios/app/mobile-protection-for-iphone/id1672833802) - [Xfi-Cleaner: Anti & Security](https://appshunter.io/ios/app/xfi-cleaner-anti-and-security/id6445874386) - [Spam Cleaner: Super Protection](https://appshunter.io/ios/app/spam-cleaner-super-protection/id6445982335) - [Chat AI - Super Assistant Bot](https://appshunter.io/ios/app/chat-ai-super-assistant-bot/id6446248927) All apps by 丹丹 李: https://appshunter.io/developer/1666474477 ## Related topics [duo multifactor](https://appshunter.io/ios/topics/duo-multifactor) · [duo push app](https://appshunter.io/ios/topics/duo-push-app) · [rsa secure id app](https://appshunter.io/ios/topics/rsa-secure-id-app) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*