掌上SRM vs 641rc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
掌上SRM
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SRM拥有先进的螺杆压缩机设计水平，同时拥有丰富的压缩机应用经验，该款APP是SRM压缩机产品的选型软件，涵盖SRM开启式压缩机、SRM半封闭压缩机、SRM氨用压缩机等产品，以选用R22、R134a、R507a、R407a、R410a、、R744、R717等制冷剂进行设计计算，可以根据客户的需求，选择合适的压缩机型号。
641rc
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主要用于遥控玩具的遥控使用
Screenshots
Verdict
The clearest difference is ads: 641rc at none against 掌上SRM's shown. On price, update cadence, 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.
掌上SRM ships an update every 2 months, 641rc every 6 weeks. The most recent releases landed on September 7, 2026 and September 13, 2026 respectively.
| Parameter | 掌上SRM | 641rc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 21 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Fujian Snowman Zhenxun Development Co., Ltd. | 秋华 黄 |
In-app purchases
掌上SRM
No in-app purchases
641rc
No in-app purchases
