# T vs SIM CHANGER ⊿

The clearest difference is update cadence: SIM CHANGER ⊿ at weekly against T's every 6 weeks. SIM CHANGER ⊿ also leads on iOS requirement (9.2 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

T ships an update every 6 weeks, SIM CHANGER ⊿ weekly. The most recent releases landed on October 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | T | SIM CHANGER ⊿ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (719 ratings)](https://appshunter.io/ios/app/t-mobile-digits/id1097606585/reviews)** | — |
| Number of ratings | **719** | — |
| Positive reviews | 6.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 97 MB | 60 MB |
| Requires iOS | 13.0 | **9.2** |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [T-Mobile](https://appshunter.io/developer/525560781) | [Cerevo Inc.](https://appshunter.io/developer/382811503) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-mobile-digits/id1097606585)

This app allows T-Mobile customers to use their phone number across multiple devices, including smartphones, tablets, and computers. It enables managing calls, texts, and voicemails from various devices, and supports using multiple numbers on a single device or one number across many.

**Highlights:** Use phone number on multiple devices, Make and receive calls, Send and receive text messages, Check voicemail, Manage multiple numbers, Separate work and personal lines

**In-app purchases:** none

**What reviewers like**

- 💯 Great app
- 🚀 Awesome concept
- 🤝 Useful for business
- 🔍 Helpful for monitoring

**What reviewers complain about**

- 🐛 Crashes frequently
- 🔌 Unreliable connectivity
- 🤯 Frustrating bugs
- 🕰️ Slow performance
- 📵 Missed calls/texts

**Reported bugs**

- Login issues
- Disappearing messages
- Inconsistent call/text delivery
- Outdated/buggy app versions

**Requested features**

- Dark mode option
- Improved contact management
- Reliable notifications
- Seamless multi-device sync
- Better call quality


### SIM CHANGER ⊿

[App page](https://appshunter.io/ios/app/sim-changer/id1212183833)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T free?

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

### Is SIM CHANGER ⊿ free?

SIM CHANGER ⊿ is free to download, with no in-app purchases.

### Do T or SIM CHANGER ⊿ have ads?

Neither T nor SIM CHANGER ⊿ shows ads.

### Which is updated more often, T or SIM CHANGER ⊿?

T ships an update every 6 weeks, and SIM CHANGER ⊿ weekly. Most recently, T was updated on October 25, 2026 and SIM CHANGER ⊿ on October 6, 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.*