Lyrasonus vs Fastsound
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lyrasonus
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Tools for debugging and experiencing Bluetooth devices
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.
Screenshots
Verdict
The clearest difference is update cadence: Lyrasonus at weekly against Fastsound's every 6 months. 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.
Lyrasonus ships an update weekly, Fastsound every 6 months. The most recent releases landed on September 22, 2026 and October 13, 2026 respectively.
| Parameter | Lyrasonus | Fastsound |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 44 MB | 19 MB |
| Age rating | 4+ | 17+ |
| Developer | Chirong Chen | 杭州发声者声学科技有限公司 |
In-app purchases
Lyrasonus
No in-app purchases
Fastsound
No in-app purchases
