Theta vs MeterTracker
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 X Theta-Meter X is a companion application designed to work with compatible Theta-Meter hardware devices. The app connects via Bluetooth Low Energy (BLE 4.0 or higher) or Wi-Fi and displays real-time electrical resistance measurements from objects connected to the device’s electrodes. Key Features: - Real-time visualization of electrical resistance changes - Clear analog-style needle indicator for dynamic monitoring - Bluetooth LE and Wi-Fi connectivity - Simple, user-friendly interface - Stable data transmission from supported hardware devices How It Works When connected to a compatible device, the app measures and displays variations in electrical resistance detected between attached electrodes. The needle indicator provides a continuous visual representation of resistance fluctuations, allowing users to observe dynamic changes over time. Intended Use Theta-Meter X is designed for general experimental, educational, and technical purposes involving electrical resistance measurement. It is intended for use with compatible hardware devices only. Important Notice This application and the associated hardware are not medical devices. They are not intended for diagnosing, treating, curing, preventing, or mitigating any disease or health condition. The app does not provide medical, therapeutic, or psychological advice.
MeterTracker
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An energy data platform from krumedia GmbH is required to use this app. Contact the provider or the developer of the software if you have any questions. The app allows mobile meter readings from non-networked measuring points. It supports the person reading the meter in remembering readings, allocating meters and entering meter readings. The app automatically synchronizes with the energy data platform.
Screenshots
Verdict
The clearest difference is iOS requirement: MeterTracker at 15.5 against Theta's 17. On price, update cadence, 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 3 months, MeterTracker every 2 months. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.
| Parameter | Theta | MeterTracker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17 | 15.5 — better |
| Further details — not scored | ||
| Size | 18 MB | 41 MB |
| Age rating | 12+ | 4+ |
| Developer | Mikhail Fedorov | krumedia GmbH |
In-app purchases
Theta
No in-app purchases
MeterTracker
No in-app purchases









