# auth. - 2FA Smart Sync — Secure Code in one place.

> Securely manage two-factor authentication codes across Apple devices. (iPhone/iPad app by ChakMing Wong.)

- Source: https://appshunter.io/ios/app/auth-2fa-smart-sync/id1553284993 (this page in markdown: same URL + `.md`)
- Developer: [ChakMing Wong](https://appshunter.io/developer/1525986104)
- Category: Developer Tools, Reference
- Price: $3.99
- Rating: 4.70/5 from 6 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 28 MB
- Languages: British English, Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France) and 34 more
- Released: 2021-02-18
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/auth-2fa-smart-sync/id1553284993/reviews.md

## What is auth.?

Are you looking for a simple and comfortable 2FA/MFA security solution for your account? 

Auth. is a 2FA and OTP management tool for everyone. 
Works with all Apple personal devices - based on iCloud Keychain technology.

Steps:
1. Scan the QR Code
2. Done!
You can also add your account via a link from your provider.

Available Platform:
- iPhone + Apple Watch
- iPad
- Mac + Safari (Extension)
- Vision Pro

Features:
- Unlimited account
-- Key Space (Personal, Business, Secret)
- Auto-fill (Safari on Mac Only)
- Tap to scan (iPhone / iPad Only)
- QR Code instant recognization (iPhone / iPad Only)
- Copy to clipboard  (iPhone / iPad / Mac) / Drag (Mac)
- Open with auth. (Support Common URLs)
- Customized timeout and auto-lock
- Offline running
- Store password and safe code
and more...

## Key features

- Unlimited account storage
- QR code scanning
- Link-based account addition
- Offline running
- Customizable timeout and auto-lock
- Password and safe code storage

## Chart rankings

- #174 in Top Paid · Developer Tools (US App Store)

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/auth-2fa-smart-sync/id1553284993/reviews.md

### 5/5 — *Updated review* Works excellent now.

*2024-04-04*

When I first purchased this app close to the launch of Vision Pro, the basic functionality of providing codes by syncing to a phone simply did not work. I wrote the developer and they did respond quickly, which was good. I am happy to say that now the app is working as expected and seems to be a reliable source for 2FA in Vision Pro. I’m happy to recommend it now.

**Developer response:** Thank you for the update on your review. Glad to hear that the app is now working as expected. Hope you enjoy using Vision Pro :)


===========
Hi Mr Brett,

As mentioned in a previous email, we are working on a fix to visionOS due to unexpected system problem on the real device.
The updated patch will be released next week.
Sorry for any inconvenience caused.

Please contact support@startway.io if you have further questions.

### 2/5 — Basic functionality doesn’t work.

*2024-03-08*

So I downloaded this app to use as a google authenticator alternative. I was instructed to install the iPhone app in order to setup my authenticators, which I did successfully. This app for Vision Pro is supposed to sync via the cloud to provide the authenticator codes created on another device. The only problem is it doesn’t work, at least not for me. It makes it seem as if it sees my iPhone account, but it doesn’t show any of the codes. It’s reallllllllly hard to recommend paying for an app that doesn’t do the basics of what it says it will. 

I’m giving it two stars because I reached out to the developer and they provided a polite response rather quickly. It doesn’t solve the problem, but its nice to hear a response.

**Developer response:** Hi Mr Brett,

As mentioned in a previous email, we are working on a fix to visionOS due to unexpected system problem on the real device.
The updated patch will be released next week.
Sorry for any inconvenience caused.

Please contact support@startway.io if you have further questions.

### 1/5 — Waste of money

*2022-03-17*

Can't import QR codes exported from google authenticator app. Only gives option to type secrets manually, cant import mass accounts at once - don't bother using this if you need to transfer from another device

**Developer response:** Hello, Roasty_Mako. Sorry to hear the app is not working as your expected. Currently, auth. doesn't support transfer from another app. But your suggestion will be considered in the future roadmap of the app. Thanks for your understanding.

### 3/5 — May be good in the future, but I'm skipping for now

*2022-03-01*

I really like the direction of this app. 
It's lightweight but gives developers details about the token and it syncs with keychain. 

But for now, it's too buggy. 
On iPad, i don't come past the "welcome" screen, 
on macOS Monterey on M1 MacMini I can't change the icon of an entry, because refreshing the list does not work as described (by pulling on the list on the left side). 

May revisit later to update my review! 
Also, three stars to still support the developer! :)

**Developer response:** Thanks for your report feedback. Could you please contact auth-support@startway.io for further support?

### 5/5 — Great App

*2021-11-12*

Finally a nice and Shiny app i can use for my Auth

**Developer response:** Thank you. Hope you enjoy this app.

### 5/5 — Easy to use

*2021-09-23*

Nice

**Developer response:** Thank you. Hope you enjoy this app.

### 4/5 — Good App. Solid Devs.

*2021-09-21*

I have never written a review before, but I think this app has potential to really be great.

Right now, it is just *good* but the cross device synchronization and aesthetics of the app are great.

Emailed the developer a feature request and they responded within 24 hours saying they will add it to the next release!

Once this app lets you add custom labels, and re-arrange the order, it will be 5 stars for sure.

**Developer response:** Thank you for the thoughtful review. 
Custom labels and account reordering are now available in the latest release, and your kind words about sync and design are truly appreciated.

### 4/5 — Custom photo

*2021-08-19*

Is it possible to add this feature ? it is really great app

**Developer response:** Thanks for suggestion. You can now choose icons on the iPhone version.

### 3/5 — Safari游览器拓展？

*2021-04-09*

你好，请问具体教程和使用方法没有在应用内发现，或者您有博客网站么？我自己可以寻找观看教程即可

**Developer response:** Safari游览器拓展僅支持macOS。
教程: https://support.apple.com/zh-cn/HT203051

如有其他疑问，请联系support-cn@startway.io

### 1/5 — 为什么打开闪退？

*2021-04-05*

iphone x 14.4 打开闪退

**Developer response:** 您好，如果应用闪退了，请尝试重新安装该应用程序。 谢谢。
你也可以联系：support-cn@startway.io

## Frequently asked questions about auth.

### What is auth. - 2FA Smart Sync?

auth. - 2FA Smart Sync is a paid application designed to securely manage your two-factor authentication (2FA) and one-time password (OTP) codes. It works across various Apple devices by leveraging iCloud Keychain technology.

### How do I add accounts to auth. - 2FA Smart Sync?

You can add accounts by scanning a QR code provided by your service provider or by adding an account via a direct link from your provider. The app supports instant QR code recognition and common URL formats.

### What devices are supported by auth. - 2FA Smart Sync?

This app is available on iPhone, iPad, Apple Watch, Mac, and as a Safari extension. It requires iCloud and Keychain to be enabled on your devices.

### Does auth. - 2FA Smart Sync have ads?

No, auth. - 2FA Smart Sync does not contain advertisements. It is a paid application with a one-time purchase price of $3.99.

### Can auth. - 2FA Smart Sync run offline?

Yes, auth. - 2FA Smart Sync supports offline running, meaning you can access and use your authentication codes even without an internet connection.

### What is the age rating for auth. - 2FA Smart Sync?

auth. - 2FA Smart Sync has an age rating of 4+, making it suitable for a wide range of users. It is designed for secure code management.

### How often is auth. - 2FA Smart Sync updated?

The latest version of auth. - 2FA Smart Sync is 26.1, and it was last updated on December 6, 2025. This indicates a commitment to regular updates and improvements.

### What kind of accounts can I store in auth. - 2FA Smart Sync?

You can store an unlimited number of accounts, categorized into Personal, Business, and Secret key spaces. It also allows you to store passwords alongside your safe codes.

## Version history (last 5 releases)

### 27.2 — 2026-07-13

Thanks for using auth.
Version 27.2 brings a faster, cleaner, and more reliable authentication experience.

• Major performance improvements for launch, unlock, search, and scrolling
• Improved auto-lock reliability without slowing down the app after unlocking
• Added auto-lock timer controls to macOS Settings
• Redesigned macOS Settings with a roomier layout and cleaner keyspace editing
• Added suggested provider icons to Settings for easier browsing and copying
• Improved account icons to show the best matching icon more consistently, even while locked

### 27.1 — 2026-06-13

Thanks for using auth.
Version 27.1 brings a faster, cleaner auth experience.

• Major performance improvements for launch, unlock, search, and scrolling
• Fixed auto-lock so it triggers reliably without slowing the app after unlock
• Added auto-lock timer controls to macOS Settings
• Redesigned macOS Settings with a roomier layout and cleaner keyspace editing
• Added suggested provider icons in Settings
• Improved account icons so each account shows its best matching icon more consistently
• Refined import UI sizing and account order syncing

### 27.0 — 2026-06-07

Happy WWDC26! 
Thanks for choosing auth.
- Various UI/UX and features improvement
* Full release note can be found in-app

### 26.1 — 2025-12-06

Thanks for choosing auth.

- Fix critical issue below iOS 26

### 26.0 — 2025-11-22

Thanks for choosing auth.

- New UI on iOS 26

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## More apps by ChakMing Wong

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All apps by ChakMing Wong: https://appshunter.io/developer/1525986104

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*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.*