Fastsound vs PhonePass Diagnostic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fastsound
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Fastsound is applied to connect the hearing aid to the smart phone, and customize the hearing aid via phone. listening mode change, volume adjustment, noise reduction, etc.
PhonePass Diagnostic
This app guides technicians through structured hardware diagnostic inspections for phones. It offers a comprehensive suite of automated tests for display, camera, audio, sensors, connectivity, and more, allowing for immediate pass/fail recording and export of results.
- Full-screen and touchscreen checks
- Camera and flash testing
- Automated speaker and microphone tests
- Sensor and connectivity diagnostics
- Physical button and vibration checks
- eSIM activation and charging tests
- Exportable diagnostic results
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PhonePass guides technicians through a structured diagnostic inspection of the Phone. The app provides full-screen display and touchscreen checks, individual camera and flash checks, automated speaker and microphone playback, earpiece, proximity, motion, location, Wi-Fi, Bluetooth, NFC, TrueDepth, physical-button, vibration, eSIM activation, and charging checks. Tests begin immediately and advance as evidence is captured. Operators can record clear pass or fail results and rerun any individual test when needed. Diagnostic results remain on the device and can be exported through the Files app or read locally over USB by authorized PhonePass station software. PhonePass does not bypass Activation Lock, passcodes, or Apple device security.
Screenshots
Verdict
The clearest difference is update cadence: PhonePass Diagnostic at weekly against Fastsound's every 6 months. Fastsound's advantage is iOS requirement (13.0 vs 15.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fastsound ships an update every 6 months, PhonePass Diagnostic weekly. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.
| Parameter | Fastsound | PhonePass Diagnostic |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 19 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | 杭州发声者声学科技有限公司 | Shady Said |
In-app purchases
Fastsound
No in-app purchases
PhonePass Diagnostic
No in-app purchases
Questions
Is Fastsound free?
Is PhonePass Diagnostic free?
Do Fastsound or PhonePass Diagnostic have ads?
Which is updated more often, Fastsound or PhonePass Diagnostic?
Other comparisons
