# CiEMS_Eye T5 vs Author BT Update

The clearest difference is update cadence: Author BT Update at monthly against CiEMS_Eye T5's every 13 months. CiEMS_Eye T5's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

CiEMS_Eye T5 ships an update every 13 months, Author BT Update monthly. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CiEMS_Eye T5 | Author BT Update |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Size | 25 MB | 4 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SMART VALUE](https://appshunter.io/developer/557447212) | [AUTHOR-ALARM](https://appshunter.io/developer/1344731145) |

## What reviewers say

### CiEMS_Eye T5

[App page](https://appshunter.io/ios/app/ciems-eye-t5/id1450898471)

**Features:** macOS Compatibility

**In-app purchases:** none


### Author BT Update

[App page](https://appshunter.io/ios/app/author-bt-update/id6475983875)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CiEMS_Eye T5 free?

CiEMS_Eye T5 is free to download, with no in-app purchases.

### Is Author BT Update free?

Author BT Update is free to download, with no in-app purchases.

### Do CiEMS_Eye T5 or Author BT Update have ads?

Neither CiEMS_Eye T5 nor Author BT Update shows ads.

### Which is updated more often, CiEMS_Eye T5 or Author BT Update?

CiEMS_Eye T5 ships an update every 13 months, and Author BT Update monthly. Most recently, CiEMS_Eye T5 was updated on October 11, 2026 and Author BT Update on October 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.*