Comparison

GCSync vs 壹印

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

GCSync

Features

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使用APP通过蓝牙发射信号给GC系列的COB灯，让手机变成一个设备遥控器。

About

壹印

Features

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壹印是一款由摄影爱好者打造的图片水印工具。我们相信，好的工具不该喧宾夺主，而应足够简单、自由且高效，让每一张照片都能呈现属于你的风格。【批量处理，一键完成】无需重复操作，一次即可批量输出多张图片，不限张数，让创作更高效。【自由定制，不设限制】从字体、颜色、大小到水印内容，均可自由调整。告别固定模板，你的图片，由你定义。【界面简洁，纯净无广】去除多余功能与广告干扰，把更干净、更流畅的使用体验留给每一次创作。不只是添加水印，更是为作品留下信息、风格与记忆。使用壹印，让水印自然成为照片的一部分。官方网站：watermark.yiyin.org.cn 小红书：@YiYin_Watermark 抖音：@YiYin_Watermark BiliBili：@壹印公众号：@壹印

Screenshots

GCSync3 screens

壹印4 screens

Verdict

The call

The clearest difference is in-app purchases: GCSync at none against 壹印's 7. GCSync also leads on iOS requirement (12.0 vs 15.0). 壹印's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 壹印 sells 7 one-off in-app purchases. GCSync asks for nothing beyond the download.

UpkeepUpdate frequency

GCSync ships an update every 3 months, 壹印 every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level

GCSync versus 壹印: the parameters behind the verdict, then further details
Parameter	GCSync	壹印
Price	Free	Free
Update frequency	Every 3 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	15.0
Further details — not scored
Size	26 MB	68 MB
Age rating	4+	4+
Developer	深圳市影之器科技有限公司	悦波卢