TPMS Chart vs OKNFC
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
TPMS Chart
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TPMS Chart is the essential TPMS (Tire Pressure Monitoring System) reference app for automotive professionals. Quickly find TPMS sensor compatibility, coverage information, and relearn procedure for vehicles. Features: โข TPMS sensor database with vehicle compatibility โข OE number lookup for TPMS parts โข Vehicle coverage search by make, model and year โข Relearn procedure guidance โข Community Q&A for TPMS issues
OKNFC
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An automobile tire pressure sensor programming tool.
Screenshots
Verdict
TPMS Chart and OKNFC are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
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.
| Parameter | TPMS Chart | OKNFC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.6 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 52 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | SYSGRATION | Shenzhen Keelray Technology Co.,Ltd |
In-app purchases
TPMS Chart
No in-app purchases
OKNFC
No in-app purchases
