Theta vs AllSensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theta
This application connects to specialized devices to measure and display galvanic skin response. It utilizes Wi-Fi and Bluetooth 4.0BLE to collect data on skin conductance, providing insights into physiological responses.
- Galvanic skin response measurement
- Wi-Fi connectivity
- Bluetooth 4.0BLE connection
- Skin conductance data display
- Physiological response tracking
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Application displays data from Theta-Meter devices (Wi-Fi and Bluetooth 4.0BLE connection) which measures human body galvanic skin response. Skin conductance, also known as galvanic skin response (GSR), electrodermal response (EDR), psychogalvanic reflex (PGR), skin conductance response (SCR) or skin conductance level (SCL), is a method of measuring the electrical conductance of the skin.
AllSensor
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Application features: - Multiple Bluetooth sensors, such as illumination, temperature and humidity, noise, etc., can be automatically connected at the same time - Includes maximum minimum display mode - Includes line chart view - Includes view of the data table - Data can be exported in a variety of formats Preconditions for using: - Use the AllSun Bluetooth Sensor Series (EM2221, EM2224, EM2226, EM2228, EM2310, EM2311, EM2312) - IOS 8.3 or an updated version is required to support Bluetooth 4.0 and above devices
Screenshots
Verdict
The clearest difference is update cadence: Theta at monthly against AllSensor's every 3 months. 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.
Theta ships an update monthly, AllSensor every 3 months. The most recent releases landed on October 4, 2026 and September 19, 2026 respectively.
| Parameter | Theta | AllSensor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 13 MB | 60 MB |
| Age rating | 12+ | 4+ |
| Developer | Mikhail Fedorov | ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD. |
In-app purchases
Theta
No in-app purchases
AllSensor
No in-app purchases
