SO3 On vs SensorLogger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SO3 On
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Efficient engineering: Follow the assembly progress of your system live. The perfect addition to the SO3 engineering platform: with the SO3 app, the assembly progress of a system can be tracked in real time with a smartphone or tablet. When assembling a system, the fitters scan special QR codes on site in each section, which means that the assembly progress is transmitted directly to the SO3 database. This allows you to determine at any time whether the project is on schedule and when it is likely to be completed. Please note: The SO3 app can only be used in connection with the SO3 engineering platform. SO3 - the future-oriented engineering platform from SCIO Automation. As a powerful online planning tool, SO3 brings together all those involved in an engineering process and thus enables a design process that can be designed consistently transparent and safe from the first concept to commissioning. Since planners, clients and operators can work together directly regardless of their geographical location, project efficiency increases over the long term. For more information, visit: https://www.scio-automation.com/
SensorLogger
Record acceleration, gyroscope, and magnetic field data in real-time or at higher frequencies. Export your sensor readings as a CSV file for further analysis. Optimize data collection by toggling visualization settings.
- Log acceleration, gyroscope, and magnetic field
- Synchronous sensor measurement
- Real-time data visualization
- Adjustable sampling frequency
- Export data as CSV file
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A logger App that can measure acceleration, gyroscope, and magnetic field synchronously, then export as a CSV file. The measured values can be visualized in real-time by enabling "Realtime visualization". On the other hand, when you want to measure at a more accurate frequency, disabling "Realtime visualization" is preferred. Also, if the sampling rate is set too high, the same value may be sampled many times depending on the hardware specifications.
Screenshots
Verdict
The clearest difference is price: SO3 On at Free against SensorLogger's $0.99. SO3 On also leads on iOS requirement (10.3 vs 16.0). SensorLogger's advantage is update cadence (every 3 weeks vs every 2 months). On 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
SO3 On is free to download; SensorLogger costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SO3 On ships an update every 2 months, SensorLogger every 3 weeks. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.
| Parameter | SO3 On | SensorLogger |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 4.5 (11 ratings) — better |
| Positive reviews | — | 78.3% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 10.3 — better | 16.0 |
| Further details — not scored | ||
| Size | 66 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | VESCON GmbH | Kazumasa Wakamori |
In-app purchases
SO3 On
No in-app purchases
SensorLogger
No in-app purchases









