# GDSP vs TPMS CN

The clearest difference is iOS requirement: GDSP at 8.0 against TPMS CN's 13.0. On price, update cadence, 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.

GDSP ships an update every 4 weeks, TPMS CN monthly. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | GDSP | TPMS CN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Size | 7 MB | 100 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏生 卢](https://appshunter.io/developer/1094592555) | [Xi'an Tonglu Car Electronics Co., Ltd](https://appshunter.io/developer/1756468712) |

## What reviewers say

### GDSP

[App page](https://appshunter.io/ios/app/gdsp-s8/id1299007745)

**Features:** macOS Compatibility

**In-app purchases:** none


### TPMS CN

[App page](https://appshunter.io/ios/app/tpms-cn/id6529535145)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GDSP free?

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

### Is TPMS CN free?

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

### Do GDSP or TPMS CN have ads?

Neither GDSP nor TPMS CN shows ads.

### Which is updated more often, GDSP or TPMS CN?

GDSP ships an update every 4 weeks, and TPMS CN monthly. Most recently, GDSP was updated on November 11, 2026 and TPMS CN on November 8, 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.*