TPMS Chart vs OKM100
Price, ratings, monetisation and update history for both apps, side by side — 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: • TPMS sensor database with vehicle compatibility • OE number lookup for TPMS parts • Vehicle coverage search by make, model and year • Relearn procedure guidance • Community Q&A for TPMS issues
OKM100
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A software that connects to TPMS And VCI through Bluetooth.
Screenshots
Verdict
The clearest difference is update cadence: TPMS Chart at every 3 weeks against OKM100's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, OKM100 every 6 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.
| Parameter | TPMS Chart | OKM100 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | SYSGRATION | Shenzhen Keelray Technology Co.,Ltd |
In-app purchases
TPMS Chart
No in-app purchases
OKM100
No in-app purchases
