TTC_BLE vs Crystal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TTC_BLE
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该app适用与蓝牙模组之间的调试！
Crystal
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该应用程序用于为配合使用的清洁机器人设置清洁任务的开始和结束时间，控制清洁机器人的移动、定位和功能启动和停止。同时，您可以在线查看清洁机器人的工作状态、电池电量和操作日志。配套的商用清洁机器人主要用于商业场景中的无人清洁作业，如自动驾驶、自动导航、自动避障、降低人工成本、提高工作效率。
Screenshots
Verdict
The clearest difference is update cadence: Crystal at every 3 weeks against TTC_BLE's every 2 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.
TTC_BLE ships an update every 2 months, Crystal every 3 weeks. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.
| Parameter | TTC_BLE | Crystal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 3 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Tuner168 Technology Co.,ltd | 上海永力信息科技有限公司 |
In-app purchases
TTC_BLE
No in-app purchases
Crystal
No in-app purchases
