MotorFIX vs Sound Scope Analyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MotorFIX
Diagnose and troubleshoot electric motors for scooters and e-bikes. Identify common faults, test Hall sensors, analyze motor windings, and perform calculations. Unlock professional tools with a one-time purchase.
- Motor fault diagnosis
- Hall sensor testing
- Phase and Hall combination analysis
- Rotor magnet checks
- Winding tools and diagrams
- Motor calculation tools
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MotorFIX is a practical diagnostic and workshop tool for electric scooter, e-bike, and light electric vehicle motors. Use MotorFIX to identify common motor faults, verify Hall sensor behavior, analyze phase and Hall combinations, and work with motor winding calculations and diagrams. Main features: • Motor fault diagnosis • Hall sensor testing and reference information • Phase and Hall combination analysis • Rotor magnet checks • Winding tools and diagrams • Turns, Kv, and RPM calculations • Three-phase motor simulation MotorFIX Pro unlocks the complete set of professional tools and combinations with a single purchase. No subscription is required. Designed for technicians, mechanics, and users working with electric scooters, e-bikes, and other light electric mobility systems.
Sound Scope Analyzer
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Sound Scope Analyzer visualizes sound from your microphone in real time — an oscilloscope and spectrum analyzer in your pocket. ● Real-Time Mode • Watch waveforms like on an oscilloscope (a trigger keeps periodic waves steady on screen) • CRT-style afterglow effect you can toggle on and off • Frequency spectrum up to 24 kHz with automatic noise-floor removal, so real sounds stand out clearly • Fixed or auto scaling for each axis; pinch to zoom and drag to pan ● Timbre Mode • Automatically detects a sustained long tone (like singing “ahh”) and analyzes it with high frequency resolution • Shows the fundamental note name and frequency, with offset in cents • Marks each harmonic peak with its note name and measured frequency • Save the analysis result to Photos as an image • Sound source presets: voice, whistle, piano, guitar, bowed strings, and winds ● Great for • Long-tone practice and tone checks for winds, strings, and vocals • Comparing the harmonic structure of different instruments • Learning the physics of sound: frequency, waveforms, and harmonics • Exploring the sounds around you ● Privacy All audio is processed entirely on your device. Nothing is ever recorded, stored, or transmitted. Available in English and Japanese.
Screenshots
Verdict
The clearest difference is in-app purchases: Sound Scope Analyzer at none against MotorFIX's 1. MotorFIX's advantage is ads (none vs shown) and iOS requirement (16.0 vs 26.5). On price, update cadence 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. MotorFIX sells 1 one-off in-app purchase. Sound Scope Analyzer asks for nothing beyond the download.
Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | MotorFIX | Sound Scope Analyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily | Daily |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | WILLIAM RAMON PADRON | Shinichi Takemura |
In-app purchases
MotorFIX
- MotorFIX Pro$6.99
Sound Scope Analyzer
No in-app purchases









