# TPMS Chart vs OKNFC

TPMS Chart and OKNFC are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 19, 2026 and December 22, 2025 respectively.

## The numbers

| Metric | TPMS Chart | OKNFC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 52 MB | 38 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SYSGRATION](https://appshunter.io/developer/833548921) | [Shenzhen Keelray Technology Co.,Ltd](https://appshunter.io/developer/1643634723) |

## What reviewers say

### TPMS Chart

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

**In-app purchases:** none


### OKNFC

[App page](https://appshunter.io/ios/app/oknfc/id1643634721)

**In-app purchases:** none


## Frequently asked questions

### Is TPMS Chart free?

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

### Is OKNFC free?

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

### Do TPMS Chart or OKNFC have ads?

Neither TPMS Chart nor OKNFC shows ads.

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

TPMS Chart ships an update every 3 weeks, and OKNFC every 3 weeks. Most recently, TPMS Chart was updated on September 19, 2026 and OKNFC on December 22, 2025.

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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.*