KMSpeaker vs GRF Audio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KMSpeaker
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KMSpeaker is an application to control speaker under Bluetooth connected, You can control the input different audio signals and implement their multiple functions. Music:You can play the user’s local music,SD card music and U disk music; FM radio:Search and listen to radio; EQ:You can choose the corresponding mode according to the built-in EQ effect or preferences custom EQ; LED Light:LED light can change color or select scene;
GRF Audio
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单独控制音乐音量、单独控制乐器音量、5段均衡器可调、灯光效果、低音模式、专业麦克风调节、真无线立体声技术、多种氛围音效。
Screenshots
Verdict
The clearest difference is update cadence: GRF Audio at every 3 months against KMSpeaker's every 40 months. KMSpeaker's advantage is iOS requirement (9.0 vs 13.0). 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.
KMSpeaker ships an update every 40 months, GRF Audio every 3 months. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.
| Parameter | KMSpeaker | GRF Audio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 40 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 16 MB | 129 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓 徐 | 广州市声拓电子有限公司 |
In-app purchases
KMSpeaker
No in-app purchases
GRF Audio
No in-app purchases
