GyroMetrics vs Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GyroMetrics
This app logs detailed performance data from electric unicycles, combining it with GPS and altitude information. Analyze your rides graphically or export data for further review. It also offers diagnostic tools and an Apple Watch module for convenient monitoring.
- Logs speed, current, voltage, and power
- Integrates GPS and altitude data
- Graphical analysis of ride data
- Export data to CSV and GPX formats
- Diagnostic connection mode
- Simulates unicycle for app testing
- Apple Watch module for remote monitoring
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9BMetrics connects to your Ninebot One, Kingsong, Gotway or InMotion and logs wheel information: - Speed - Current - Voltage - Power - Pitch and Roll (only in Ninebot) etc. and combines it with the altitude change from the iPhone barometer and the GPS data. Please be aware aware that continued use of GPS running in the background can dramatically decrease battery life. Also if blocking lock screen is enable battery life will be shorter. Each log may be analyzed graphically or exported in a ZIP file that includes a CSV file for each variable and a .gpx file for the GPS data. A special mode allows to debug connection information between the wheel and the original Ninebot application (or other). Another one simulates a real Ninebot One wheel so you may test applications with out the wheel. An Apple Watch module allows to control your speed, remaining battery and km, distance and time simply from your watch while your phone is secure in your barg or pocket.
Explorer
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Explorer turns your iPhone into a full sensor logger. Start a session and it records your GPS track together with barometric pressure, compass heading, motion and activity data, step counts, and battery state — in the foreground or with the screen locked. YOUR DATA STAYS YOURS Everything is stored on your device. No account, no analytics, no ads, no third-party SDKs. Data leaves your phone only when you export it — and you choose where it goes. RECORD • One-tap session recording with live dashboard: position, speed, altitude, G-force • Background tracking that keeps logging while your screen is off • Log points of interest with a tap - or hands-free with Siri: "Log a POI in Explorer" • Per-sensor controls and sample rates to balance detail against battery EXPLORE • Every session drawn on the map in its own color, with POI pins • Live compass, motion, and environment views • Browse every reading in the Data viewer with filters and charts • Preview any session on a map before deleting it EXPORT ANYWHERE • Share ZIPs of CSV or JSONL via Files, AirDrop, or Mail • Or send data straight to your own server: any HTTP(S) endpoint, POST or PUT, custom headers, Bearer/Basic/API-key auth — credentials kept in the iOS Keychain • Filter exports by sensor type, session, and date range • Full schema documentation built into the app (Help → Data Reference) Explorer asks for location (including Always, for background recording) and motion permissions. Recording happens after you tap Start Tracking or open the app.
Screenshots
Verdict
The clearest difference is device support: GyroMetrics at 4 against Explorer's 1. GyroMetrics also leads on iOS requirement (9.3 vs 17.0). 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.
| Parameter | GyroMetrics | Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 58.3% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 9.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 42 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Francisco Gorina Vanrell | James Bolderson |
In-app purchases
GyroMetrics
No in-app purchases
Explorer
No in-app purchases









