# TPMS Chart vs Safe TPMS

The clearest difference is update cadence: TPMS Chart at every 3 weeks against Safe TPMS's every 18 months. Safe TPMS's advantage is iOS requirement (12.0 vs 15.6). 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.

TPMS Chart ships an update every 3 weeks, Safe TPMS every 18 months. The most recent releases landed on October 7, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | TPMS Chart | Safe TPMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Size | 52 MB | 32 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SYSGRATION](https://appshunter.io/developer/833548921) | [Shenzhen Jialihua Electronic Technology Co.,Ltd](https://appshunter.io/developer/1460105736) |

## What reviewers say

### TPMS Chart

[App page](https://appshunter.io/ios/app/tpms-chart/id1468856989)

**In-app purchases:** none


### Safe TPMS

[App page](https://appshunter.io/ios/app/safe-tpms/id1644131593)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TPMS Chart free?

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

### Is Safe TPMS free?

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

### Do TPMS Chart or Safe TPMS have ads?

Neither TPMS Chart nor Safe TPMS shows ads.

### Which is updated more often, TPMS Chart or Safe TPMS?

TPMS Chart ships an update every 3 weeks, and Safe TPMS every 18 months. Most recently, TPMS Chart was updated on October 7, 2026 and Safe TPMS on September 11, 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.*