# SIMSON CASE vs POPO Service

The clearest difference is update cadence: SIMSON CASE at weekly against POPO Service's monthly. SIMSON CASE also leads on iOS requirement (12.0 vs 15.1). 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.

SIMSON CASE ships an update weekly, POPO Service monthly. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SIMSON CASE | POPO Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (7 ratings)](https://appshunter.io/ios/app/simson-case/id6751013114/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | — |
| Size | 228 MB | 97 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen United Power Technology Co., Ltd.](https://appshunter.io/developer/1447215451) | [北京源玥铭数字信息技术有限公司](https://appshunter.io/developer/1816572475) |

## What reviewers say

### SIMSON CASE

[App page](https://appshunter.io/ios/app/simson-case/id6751013114)

Connect your phone case to customize dynamic watch faces. Design unique animated watch faces to express your style.

**Highlights:** Connect phone case, DIY dynamic watch faces, Customize animated designs, Personalize watch face style

**In-app purchases:** none


### POPO Service

[App page](https://appshunter.io/ios/app/popo-service/id6751023643)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SIMSON CASE free?

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

### Is POPO Service free?

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

### Do SIMSON CASE or POPO Service have ads?

Neither SIMSON CASE nor POPO Service shows ads.

### Which is updated more often, SIMSON CASE or POPO Service?

SIMSON CASE ships an update weekly, and POPO Service monthly. Most recently, SIMSON CASE was updated on October 24, 2026 and POPO Service on October 13, 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.*