Bitmemo vs Hidden Layer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bitmemo
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Bitmemo 用「浮现流」帮你随机回顾相册:删、跳、留,三键搞定一轮整理。像素游戏机界面,有趣但不打扰。 相册越拍越多,却迟迟下不了手整理?Bitmemo 把整理变成一场轻量的「浮现游戏」。 打开复古像素游戏机,电源一按,每轮会从你的相册中浮现 10~50 张内容——照片、视频,以及你导入的文字便签。看到喜欢的就 KEEP,想删的标记删除,暂时拿不准就跳过。一轮结束,统一确认后再真正删除,安全可控。 你可以这样用 Bitmemo: • 随机漫游 — 在全库中随机浮现,偶尔穿插你导入的语录便签 • 往年今日 — 看看历史上的今天拍了什么 • 小动物 / 人类图鉴 — 在本地智能识别相关照片(不上传云端) • 自适应学习 — 根据你的保留习惯,调整后续浮现比例 • 分享语录 — 长按便签,生成复古机风格的分享图 Bitmemo 不建账号、不上传你的相册。浏览、分类与学习都在 iPhone 本地完成。界面是精心设计的像素风,LCD 上的命令行表情还会对你的操作「有反应」——整理也可以有点温度。 Small bits. Big memories.
Hidden Layer
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The photos we take often hide a dozen or so layers! Let's go see what's inside. This app lets you view every layer in a photo, and it also has a few useful or fun photo tools! View Layers Pick a photo and you'll see all kinds of layers inside it — maybe a depth map, a glasses mask, and more. Every layer comes with a detailed explanation. You'll discover a lot! For example, I found out that with ProRAW, what I usually see in my photo library is just the JPG preview layer inside… Of course, you can export layers too. For example, export the Low-Processing Rendering of a ProRAW main photo — a special rendering you've probably never seen. It's closer to the raw data and great for editing! You can also export the depth map and use it in Photoshop for more accurate background blur. Photo Tools Oh, and using these hidden layers, we can also process photos. For example, add a depth map to a regular photo and it becomes a Portrait mode photo, so you can refocus and add background blur right in the Photos app! There's also Remove Sharpening and Natural Key Photo — really useful if you prefer less sharpening, or want your Live Photo key photo to keep its colors. This is just the beginning. If you have a good idea, let me know!
Screenshots
Verdict
The clearest difference is price: Bitmemo at Free against Hidden Layer's $0.99. On ads, in-app purchases, device support and iOS requirement 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
Bitmemo is free to download; Hidden Layer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Bitmemo | Hidden Layer |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | 照展 董 | 北北 宋 |
In-app purchases
Bitmemo
No in-app purchases
Hidden Layer
No in-app purchases









