# Otpkey Authenticator — OTP 2FA MFA Authenticator

> Offline multi-factor authentication app for online account security. (iPhone/iPad app by Certchip Corp.)

- Source: https://appshunter.io/ios/app/otpkey-authenticator/id6444123920 (this page in markdown: same URL + `.md`)
- Developer: [Certchip Corp](https://appshunter.io/developer/1652474819)
- Category: Productivity, Business
- Price: Free
- Rating: 1.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 22 MB
- Languages: American English
- Released: 2022-11-10
- Data updated: 2026-08-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews.md

## What is Otpkey Authenticator?

Otpkey Authenticator adds a multi factor layer of security for your online accounts.

Many services and IT products support One Time Password authentication to protect your account.

These passwords can be generated even when your device is in offline mode.

Otpkey Authenticator works with many of the great online services you already use, including Google, Facebook, Evernote, GitHub, Twitter, AWS and many more! 

Otpkey Authenticator works for the standard TOTP or HOTP protocols.


Features
=======
- Secure as your device account
- Scan for QR code
- Export account as QR code
- Auto hide
- Hide your security code
- Change your account icon
- Support Face ID, Touch ID
- Copy code to clip-board
- Widget (from iOS 14)
- Watch App (from watchOS 7.0)
- Use Keychain and iCloud Keychain

Specifications
===========
- Type : Time-based, Counter-based
- Algorithm : SHA-1, SHA-256, SHA-512
- Digits : 6, 8, 10
- Period : 30, 60


RFC Standards
===========
TOTP - Time-based One-time Password Algorithm (RFC 6238)
HOTP - HMAC Based OTP Algorithm (RFC 4226)

## Key features

- Multi-factor authentication
- Offline OTP generation
- QR code scanning and export
- Biometric authentication support
- Clipboard code copying
- Widget and Watch App support

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews.md

### 1/5 — No longer supported

*2025-12-28*

The developer needs to add support for newer iOS versions.

### 1/5 — lost all access

*2024-09-08*

put all my OTP codes into this, next day they are all gone from the app saying "there are no OTP entries"
unless you want to loose access to critcial accounts, dont get this

### 5/5 — Works Well

*2024-04-12*

I usually use GA on my iphone but i needed one on my mbp bc of Proxmox. Didnt want to look for my phone everytime i log in so this is perfect. Gets the job done

### 5/5 — The BEST Authenticator App!!!

*2022-12-27*

This app has so many amazing features. Try it and see for yourself. ⭐️⭐️⭐️⭐️⭐️

## Frequently asked questions about Otpkey Authenticator

### What is Otpkey Authenticator?

Otpkey Authenticator is a free application designed to add an extra layer of security to your online accounts by generating one-time passwords (OTPs) for multi-factor authentication. It supports both time-based (TOTP) and counter-based (HOTP) protocols.

### Does Otpkey Authenticator work offline?

Yes, Otpkey Authenticator can generate one-time passwords even when your device is in offline mode. This is a key feature for ensuring you can always access your accounts securely.

### What services are compatible with Otpkey Authenticator?

Otpkey Authenticator works with a wide range of online services that support OTP authentication, including popular platforms like Google, Facebook, Evernote, GitHub, Twitter, and AWS.

### What security features does Otpkey Authenticator offer?

It offers features such as secure storage tied to your device account, QR code scanning for setup, the ability to export accounts as QR codes, auto-hiding of security codes, and support for Face ID and Touch ID for enhanced protection.

### Is Otpkey Authenticator available on multiple devices?

Yes, Otpkey Authenticator is supported on a variety of Apple devices, including Mac, Apple Watch, iPhone, iPad, and iPod. It also utilizes Keychain and iCloud Keychain for secure data synchronization.

### How often is Otpkey Authenticator updated?

The latest version, 2.5, was released on April 5, 2023. Updates typically focus on improving security, adding new features, and ensuring compatibility with the latest operating system versions.

### What are the technical specifications for OTP generation?

Otpkey Authenticator supports Time-based (30 or 60-second periods) and Counter-based OTPs. It uses SHA-1, SHA-256, or SHA-512 algorithms and can generate 6, 8, or 10-digit codes.

### Does Otpkey Authenticator have ads?

No, Otpkey Authenticator does not contain advertisements. It is a free application that focuses on providing a secure and uninterrupted user experience.

## Version history (last 4 releases)

### 2.5 — 2023-04-05

Added issuer icon for Cloudflare

### 2.3 — 2023-03-08

Supported multi-bytes charsets for Issuer and Account name.

### 2.1 — 2022-12-27

Bug fix for backup and restore function.

### 2.0 — 2022-11-11

No release notes.

## Apps similar to Otpkey Authenticator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Assembly – Your Digital HQ](https://appshunter.io/ios/app/assembly-your-digital-hq/id6443841178) | 4.1 (35) | Free | Productivity |
| [Authenticator 2FA by KeepSolid](https://appshunter.io/ios/app/authenticator-2fa-by-keepsolid/id1660779042) | 3.9 (11) | Free | Productivity |
| [Authenticator °](https://appshunter.io/ios/app/authenticator/id6446651396) | 4.8 (594) | Free | Productivity |
| [My Attendance Manager](https://appshunter.io/ios/app/my-attendance-manager/id6476926812) | 4.0 (6) | Free | Productivity |
| [2FA Authenticator Secure](https://appshunter.io/ios/app/2fa-authenticator-secure/id1604264315) | 4.4 (172) | Free | Productivity |
| [Authenticator App - Authy, 2FA](https://appshunter.io/ios/app/authenticator-app-authy-2fa/id6444312209) | 4.3 (4) | Free | Productivity |

## More apps by Certchip Corp

- [File Explorer (File Manager)](https://appshunter.io/ios/app/file-explorer-file-manager/id511271604)
- [Disk Mounter](https://appshunter.io/ios/app/disk-mounter/id797165837)
- [Disk Mounter Professional](https://appshunter.io/ios/app/disk-mounter-professional/id797168636)
- [Albumbook - Photo Album Book](https://appshunter.io/ios/app/albumbook-photo-album-book/id853360967)
- [File Explorer Professional](https://appshunter.io/ios/app/file-explorer-professional/id853365825)

All apps by Certchip Corp: https://appshunter.io/developer/1652474819

---

*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 2026-08-17.*