Comparison

GyroMetrics vs EUC Logger

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

EUC Logger

This app provides live telemetry and logging for electric unicycles. It displays real-time wheel metrics, offers customizable audio alerts for critical events, and automatically records ride data for later analysis on charts and maps. Enhance your ride videos by overlaying telemetry data.

Highlights
  • Live telemetry dashboard with 33 wheel metrics
  • Customizable audio alerts for critical events
  • Automatic ride recording with CSV export
  • Post-ride analysis with charts and map playback
  • Telemetry overlay on recorded videos
  • Support for multiple electric unicycle protocols
Features
Read full description

EUC Logger is a live telemetry dashboard and a black box for your electric unicycle. Connect over Bluetooth and ride: the app shows what the wheel is doing now, warns you out loud when it matters, and writes the ride to a file on your phone by itself. Afterwards, take it apart on charts and a map — or put its numbers onto the video you shot. WHILE YOU RIDE • 33 wheel metrics as tiles — speed, PWM, power, voltage, currents, charge, temperatures, lean, odometer, both BMS packs — each with a chart and session min-max • The dashboard learns your wheel: tiles it never fills hide themselves, a value it never sent shows a dash, never a zero. Pinch to resize, hold to reorder; tiles live on pages, like iPhone home screens • When the link drops the screen says so: dashes instead of numbers, a gap in the chart instead of a frozen line • The same dashboard runs on Apple Watch WHAT IT WARNS ABOUT • Twelve kinds: PWM, speed, lean, motor and battery temperatures, both currents, two levels of low charge, tyre pressure (InMotion), link lost and restored. Thresholds are per wheel; PWM is on from the start, at 80 % • Each kind has its own sound, so you know what fired without looking; your own spoken phrase can replace the beep, and low charge speaks by default • Audible with the silent switch on and the screen locked; other audio is ducked only while an alert sounds • This adds to the wheel's own tiltback and beeper, not replaces them RECORDING RUNS ITSELF • Starts with the first telemetry frame — no start button; a dropped link or a relaunch does not end the session • One row per telemetry frame: a couple per second on some wheels, about twenty on others • 60 CSV columns, the first ten exactly the DarknessBot layout, so analysers of its logs open the file • Share any recording, even the one being written; trim a spare piece into a separate file AFTER THE RIDE • Charts: up to three metrics at once, pinch to zoom, hold for a ruler, landscape for full screen. Line, area or bars, window min-average-max, and a break where telemetry went silent • The route on a map, coloured by speed, with ride playback. On a track the app finds laps itself, times them and shows the best one • Heart rate from Apple Watch — a column in the file, a tile and a chart TELEMETRY OVER VIDEO • A clip from the library plus your recording — numbers land on the frame: tiles, bars, sparklines, speed and lean arcs • Where the footage runs past the recording, or the link was silent, the plate shows a dash • Projects are saved. Export up to 4K, H.264 or HEVC, Reels and YouTube presets YOUR WHEELS • Every wheel keeps its own thresholds, settings, layout, name and archive; the app reconnects to the last one, and a wheel that is off opens as a frozen dashboard • Six protocol families. Three verified on hardware we own: InMotion V2 (P6), Begode-compatible (SV168), Veteran-compatible (NOSFET Aero). Three more — KingSong with Rockwheel, InMotion V1 (V5–V10), Ninebot Z — decoded from open sources and riders' captures • Your wheel not listed? Connect anyway: the protocol is recognised from the wheel itself • The app reads telemetry and changes nothing in the wheel. One exception — SmirnoV firmware: its settings can be edited, with balance fine-tuning behind a warning • An optional dragy DRG71 (Pro) GPS meter is read alongside: speed, g-forces, coordinates • No wheel at hand? Demo mode behind the gear icon runs the app on a simulated ride PRIVACY • Free: no accounts, no ads, no analytics, no third-party SDKs • Rides stay on the phone; optionally copied to iCloud Drive • Location is used for speed and route: both go into the ride file and onto the map. Map imagery comes from Google's static maps — the shown area's coordinates go into that request, nothing else • One thing only can leave the phone: a raw protocol capture for the developer, off by default, sent on your command iPhone, iOS 17+; watch dashboard needs watchOS 10+. English and Russian. Metric units only. euclogger.com

Screenshots

GyroMetrics4 screens
EUC Logger4 screens

Verdict

The call

The clearest difference is rating: EUC Logger at 5.0 against GyroMetrics's 4.0. EUC Logger also leads on review sentiment (100% vs 58%) and update cadence (weekly vs monthly). GyroMetrics's advantage is ratings volume (5 vs 1) and device support (4 vs 2). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EUC Logger holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: GyroMetrics has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 58% of GyroMetrics's written reviews are positive against 100% of EUC Logger's.

UpkeepUpdate frequency

GyroMetrics ships an update monthly, EUC Logger weekly. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
GyroMetrics versus EUC Logger: the parameters behind the verdict, then further details
ParameterGyroMetricsEUC Logger
PriceFreeFree
Rating4.0 (5 ratings)5.0 (1 ratings) — better
Positive reviews58.3% of reviews100.0% of reviews — better
Number of ratings5 — better1
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS9.3 — better17.0
Further details — not scored
Size42 MB11 MB
Age rating4+4+
DeveloperFrancisco Gorina VanrellPavel DEMIANOV

Customer experience

GyroMetrics

All ratings5 ratings
Positive60.0%
Neutral40.0%
Negative0.0%
Written reviews12 reviews
Positive58.3%
Neutral33.3%
Negative8.3%

EUC Logger

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GyroMetrics

No in-app purchases

None

EUC Logger

No in-app purchases

Questions

Is GyroMetrics free?
GyroMetrics is free to download, with no in-app purchases.
Is EUC Logger free?
EUC Logger is free to download, with no in-app purchases.
Which has better reviews, GyroMetrics or EUC Logger?
EUC Logger is rated higher. GyroMetrics averages 4.0 out of 5 from 5 ratings, while EUC Logger averages 5.0 from 1 ratings.
Do GyroMetrics or EUC Logger have ads?
Neither GyroMetrics nor EUC Logger shows ads.
Which is updated more often, GyroMetrics or EUC Logger?
GyroMetrics ships an update monthly, and EUC Logger weekly. Most recently, GyroMetrics was updated on October 1, 2026 and EUC Logger on October 9, 2026.

Other comparisons