Theta vs Speedometer XS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theta
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Theta-Meter standard e-meter app. Theta-Meter e-meter hardware can be connected to this app using Bluetooth LE 4.0 (or higher) or Wi-Fi connection. This app measures the electric resistance of the object, connected to Theta-Meter e-meter electrodes. This app is not intended to diagnose, treat, cure, or prevent any disease or medical or therapeutic use. Using a needle indicator, this app shows the dynamics of changes in the electrical resistance of an object connected to the Theta-Meter device.
Speedometer XS
Track your real-time speed, distance, and altitude during various activities like running, cycling, or driving. Record and analyze your measurements to monitor progress and identify areas for improvement.
- Real-time speed measurement
- Track distance traveled
- Record altitude
- Save measurement history
- Analyze performance data
- User-friendly interface
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Introducing Speedometer XS, the ultimate speed measurement app for your iPhone! Whether you're a runner, cyclist, or just someone who loves to track their speed, Speedometer has got you covered. With Speedometer, you can easily measure your speed in real-time, no matter what activity you're engaged in. Whether you're running a marathon, cycling through the countryside, or simply driving your car, Speedometer will accurately track your speed and provide you with all the information you need to stay on top of your game. But that's not all! Speedometer also allows you to record your measurements, including speed, travel distance, and altitude. This means that you can keep track of your progress over time and see how you're improving. Plus, with detailed measurement records, you can analyze your performance and identify areas for improvement. Speedometer is the perfect app for anyone who wants to stay on top of their speed and track their progress. Whether you're a serious athlete or just someone who enjoys staying active, Speedometer is the tool you need to take your performance to the next level. So why wait? Download Speedometer today and start tracking your speed like never before! With its user-friendly interface and powerful features, Speedometer is the ultimate speed measurement app for your iPhone.
Screenshots
Verdict
The clearest difference is update cadence: Speedometer XS at every 5 days against Theta's every 31 months. Theta's advantage is device support (4 vs 2) and iOS requirement (14.0 vs 16.0). On price, ads and in-app purchases 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.
Theta ships an update every 31 months, Speedometer XS every 5 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | Theta | Speedometer XS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 31 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Fedorov | 永超 侯 |
In-app purchases
Theta
No in-app purchases
Speedometer XS
No in-app purchases









