# T vs FEITIAN Authenticator

The clearest difference is rating: T at 3.1 against FEITIAN Authenticator's 1.5. T also leads on ratings volume (87 vs 2) and update cadence (every 3 months vs every 11 months). FEITIAN Authenticator's advantage is iOS requirement (12.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

T holds the better App Store score, 3.1 against 1.5. That said, the two scores are not equally well evidenced: T has 87 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 16% of T's written reviews are positive against 0% of FEITIAN Authenticator's.

T ships an update every 3 months, FEITIAN Authenticator every 11 months. The most recent releases landed on September 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | T | FEITIAN Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (87 ratings)](https://appshunter.io/ios/app/t-mobile-ip-relay/id542802329/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/feitian-authenticator/id1514078757/reviews) |
| Number of ratings | **87** | 2 |
| Positive reviews | **16.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Free | Free |
| Size | 15 MB | 3 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [T-Mobile](https://appshunter.io/developer/525560781) | [FEITIAN Technologies Co.,Ltd.](https://appshunter.io/developer/398121823) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-mobile-ip-relay/id542802329)

This app enables individuals who are Deaf, Hard of Hearing, DeafBlind, or have a Speech Disability to make and receive relay calls using text over the internet. It connects users with a qualified relay operator and offers features like an integrated contact list and call history.

**Highlights:** Text-based relay calls, Integrated contact list, Call history, Access to live customer care, Available on wireless networks

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Accessible for DeafBlind
- 👍 Can save conversations
- 👍 Live operator accuracy
- 👍 App updated for easier call shifting
- 👍 Good for Spasmodic Dysphonia

**What reviewers complain about**

- 🐛 Lots of bugs
- 🐛 Calls get dropped
- 🐛 Fake number calls
- 🐛 App not updated
- 🐛 App broken, cannot make calls

**Reported bugs**

- App still has LOT of bugs
- Calls get dropped
- Line is busy error
- Hackers fake number calls
- App hasn't been updated

**Requested features**

- Ability to report spam callers
- Send words automatically as I type
- Add ability to block numbers
- Option to subscribe to spam call blocking service
- Make browser and app interfaces more similar


### FEITIAN Authenticator

[App page](https://appshunter.io/ios/app/feitian-authenticator/id1514078757)

This utility app facilitates identity authentication by burning secret seeds and managing time. It integrates with iePassFIDO for enhanced security and verification processes.

**Highlights:** Burn secret seeds, Time management, Identity authentication, iePassFIDO integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T free?

T is free to download, with no in-app purchases.

### Is FEITIAN Authenticator free?

FEITIAN Authenticator is free to download, with no in-app purchases.

### Which has better reviews, T or FEITIAN Authenticator?

T is rated higher. T averages 3.1 out of 5 from 87 ratings, while FEITIAN Authenticator averages 1.5 from 2 ratings.

### Do T or FEITIAN Authenticator have ads?

Neither T nor FEITIAN Authenticator shows ads.

### Which is updated more often, T or FEITIAN Authenticator?

T ships an update every 3 months, and FEITIAN Authenticator every 11 months. Most recently, T was updated on September 27, 2026 and FEITIAN Authenticator on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*