# HENNGE OTP Generator > Generates time-based one-time passwords for multi-factor authentication. (iPhone/iPad app by HENNGE K.K..) - Source: https://appshunter.io/ios/app/hennge-otp-generator/id571240327 (this page in markdown: same URL + `.md`) - Developer: [HENNGE K.K.](https://appshunter.io/developer/571240331) - Category: Utilities, Business - Price: Free - Rating: 3.13/5 from 8 App Store ratings · 34 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 34 MB - Languages: English, German, Japanese, Chinese, Chinese - Released: 2012-11-08 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/hennge-otp-generator/id571240327/reviews.md ## What is HENNGE OTP Generator? HENNGE OTP Generator is a virtual device application for multi-factor authentication (MFA), so-called two-step verification, which generates time-based one-time passwords (OTP) complying with RFC 6238 (TOTP: Time-Based One-Time Password Algorithm). HENNGE OTP Generator supports multiple authentication source. You may use QR codes, or URLs copied onto the clipboard to add authentication config. Tested for various platforms ============================== We tested TOTP QR codes from, and believe it works with: - Amazon Web Services (AWS Multi-Factor Authentication) - App.net (Two-Factor Authentication) - Dropbox (Two-step verification) - Evernote (Two-step verification) - Facebook (Login Approvals) - Gandi (Two-factor Authentication) - GitHub (Two-factor Authentication) - Google Accounts (2-step verification) - Google Apps for Business (2-step verification) - HENNGE One (HENNGE Access Control OTP verification) - Microsoft Accounts (Two-Step Verification) - Tumblr (Two-Factor Authentication) - WordPress (Two-Step Authentication) - Yahoo! JAPAN (Yahoo! JAPAN one time password) Additional security ============================== HENNGE OTP Generator supports FaceID, TouchID or your phones passcode to prevent strangers or children from casually accessing your OTPs, even when you are physically away from your phone. Limitations ============================== - To make OTP work, make sure your clock is in sync - Only supports 6-digits ## Key features - Generates time-based one-time passwords (TOTP) - Supports RFC 6238 (TOTP) - Add accounts via QR codes - Add accounts via URLs - Biometric/passcode protection - Tested with major services ## Recent user reviews (10 of 34) All indexed reviews: https://appshunter.io/ios/app/hennge-otp-generator/id571240327/reviews.md ### 1/5 — No more updates but no export feature! *2020-11-11, version 2.2.0* The latest version of this app tells us that there will be no more updates, but you can’t export your data only ‘migrate it’ to another one of HENNGE’s proprietary apps. ### 2/5 — Ok at best *2020-04-27* It’s ok. I got it for the watch app but moved to Authy. Authy has a watch app and it’s better than this. ### 2/5 — Adequate? *2018-12-31* Works ok, but I got it for the watch integration which kinda sorta almost works if you hold it right. If you change the configuration, you have to reinstall the watch app to see the updates. Sometimes it works and it's magical when it does... but I wish it was less magical and more consistent. ### 1/5 — new version crashes instantly *2018-04-04* Made the mistake of updating without a backup. App now crashes instantly on launch, every time. ### 4/5 — Slick design, Solid App *2017-09-17* Does just what it needs to, and has a Watch extension to boot! Thanks! My only request would be that the Watch component include a Complication for quick from-the-watch-face access. ### 5/5 — Great app! *2016-09-29* Security guaranteed because there's zero network access! ### 5/5 — Top security *2015-11-17, version 1.6.1* I use this authentication app to add security to my accounts. Setup is very easy the app even supports QR code account linking. This app is better than that unreliable data mining google crap. ### 5/5 — Great update *2015-11-06* Love the new look! ### 3/5 — No sync function *2015-11-06* I really like the feel of this app, but no syncing function is really a deal beaker for me. Back to Authy. ### 5/5 — Does what it's supposed to do! *2015-03-25, version 1.5.0* With a nice pin lock feature for more security. ## Frequently asked questions about HENNGE OTP Generator ### What does HENNGE OTP Generator do? HENNGE OTP Generator is a virtual device application that generates time-based one-time passwords (OTP) for multi-factor authentication (MFA), also known as two-step verification. It complies with the RFC 6238 standard for TOTP generation. ### How do I add an authentication source to the app? You can add authentication sources by scanning QR codes provided by the service you wish to secure, or by pasting URLs copied from the service's configuration page. The app supports multiple authentication sources. ### Is HENNGE OTP Generator free to use? Yes, HENNGE OTP Generator is a free application. It does not have in-app purchases or advertisements, making it a completely free tool for generating OTPs. ### What platforms is HENNGE OTP Generator compatible with? The app is tested and believed to work with a wide range of platforms and services that support TOTP QR codes, including AWS, Dropbox, Evernote, Facebook, Google Accounts, Microsoft Accounts, and many others listed in the description. ### How does the app enhance security? Beyond generating OTPs, the app offers additional security by supporting FaceID, TouchID, or your phone's passcode. This prevents unauthorized access to your OTPs even if your phone is physically accessible to others. ## Version history (last 5 releases) ### 2.2.0 — 2020-11-11 Added the ability to migrate to HENNGE Lock (version 1.0.6 or higher required). ### 2.1.0 — 2019-05-14 * The application name has changed to HENNGE OTP Generator in line with the rebranding of HDE Inc to HENNGE K.K. * Unlocking the application now requires user interaction ### 2.0.2 — 2019-01-29 Fixed labels being deleted during update process. Fixed label being set incorrectly when scanning an OTP QR Code in some cases. Fixed wrong label appearing on the settings screen. ### 2.0.1 — 2019-01-22 Fixed application crash related to Face ID ### 2.0.0 — 2019-01-08 OTP Tokens are now synchronized between devices attached to the same iCloud Account Fixed Apple Watch Series 4 support Improved support for devices without a physical home button Improved stability of Apple Watch synchronization Removed support for counter based tokens (HOTP) ## More apps by HENNGE K.K. - [HENNGE Secure Browser](https://appshunter.io/ios/app/hennge-secure-browser/id604811371) - [HENNGE Lock](https://appshunter.io/ios/app/hennge-lock/id1457679156) - [SumaMachi](https://appshunter.io/ios/app/sumamachi/id1495768106) All apps by HENNGE K.K.: https://appshunter.io/developer/571240331 --- *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 2026-06-10.*