# PengCa vs 팅벨SOS(TingbellSOS)

The clearest difference is update cadence: 팅벨SOS(TingbellSOS) at every 10 days against PengCa's every 16 months. PengCa's advantage is iOS requirement (11.0 vs 15.4). 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.

PengCa ships an update every 16 months, 팅벨SOS(TingbellSOS) every 10 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PengCa | 팅벨SOS(TingbellSOS) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 10 days** |
| Size | 193 MB | 67 MB |
| Requires iOS | **11.0** | 15.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Green Solution Co.,Ltd](https://appshunter.io/developer/1637327251) | [ain electronics, inc](https://appshunter.io/developer/1332964433) |

## What reviewers say

### PengCa

[App page](https://appshunter.io/ios/app/pengca/id1637327249)

**Features:** macOS Compatibility

**In-app purchases:** none


### 팅벨SOS(TingbellSOS)

[App page](https://appshunter.io/ios/app/sostingbellsos/id6502580956)

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

**In-app purchases:** none


## Frequently asked questions

### Is PengCa free?

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

### Is 팅벨SOS(TingbellSOS) free?

팅벨SOS(TingbellSOS) is free to download, with no in-app purchases.

### Do PengCa or 팅벨SOS(TingbellSOS) have ads?

Neither PengCa nor 팅벨SOS(TingbellSOS) shows ads.

### Which is updated more often, PengCa or 팅벨SOS(TingbellSOS)?

PengCa ships an update every 16 months, and 팅벨SOS(TingbellSOS) every 10 days. Most recently, PengCa was updated on October 14, 2026 and 팅벨SOS(TingbellSOS) on October 16, 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.*