Challenges vs MultiSens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Challenges
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Welcome to Challenges! The app made for those who want to conquer all their monthly challenges given by the Activity app. Track your progress through elegant graphics and effective reports. Challenges is indispensable for anyone who owns an Apple Watch and is thirsty for challenges. *Challenges requires you to have installed the Activity app and a paired Apple Watch. Some of your health data will need to be collected for the app to work as expected. Some reports can only be viewed after a in-app purchase has been made.
MultiSens
This application allows users to test various machine condition monitoring sensors. It connects to sensors, displays Time Waveform and Vibration Spectrum graphs, and auto-calibrates for data acquisition.
- Test machine condition monitoring sensors
- Connect to sensors
- Plot Time Waveform graph
- Plot Vibration Spectrum (Acceleration, dB, Velocity)
- Auto-calibrate to sensors
- Data acquisition with adjustable sampling rates and sample counts
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The app is designed to test drive different Machine Condition Monitoring sensors, connect to them and plot the Time Waveform graph and the Vibration Spectrum in Acceleration, dB and Velocity. The app will auto-calibrate to each sensor and provides data acquisition with different sampling rates and number of samples.
Screenshots
Verdict
The clearest difference is in-app purchases: MultiSens at none against Challenges's 1. Challenges's advantage is update cadence (every 8 days vs every 2 months) and iOS requirement (13.4 vs 15.6). On price, ads 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. Challenges sells 1 one-off in-app purchase. MultiSens asks for nothing beyond the download.
Challenges ships an update every 8 days, MultiSens every 2 months. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.
| Parameter | Challenges | MultiSens |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 8 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Felipe Braunger Valio Desenvolvimento de Sistemas Ltda | Sens-OS |
In-app purchases
Challenges
- Premium access$0.99
MultiSens
No in-app purchases
