2pp Camera vs Hidden Layer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2pp Camera
Read full descriptionHide full description
Two-Point Perspective Camera uses your iPhone’s gyroscope to automatically correct vertical perspective in real time. As you tilt your phone up or down, the live view is continuously adjusted, allowing you to compose the corrected image before you press the shutter. No need to fix converging verticals afterward. For situations where sensor-based correction needs a little refinement, Manual Correction gives you precise control to fine-tune the perspective while you shoot. Key Features -Gyroscope Auto Correction — automatically compensates for camera tilt -Real-Time Perspective Preview — see the corrected composition before shooting -Manual Correction — fine-tune vertical perspective with precise adjustment -Two-Point Perspective — keep architectural verticals parallel -High Resolution — capture detailed architectural photographs -Multiple Aspect Ratios — compose for different photographic formats -Grid & Level — precise framing for architecture and interiors
Hidden Layer
Read full descriptionHide full description
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: 2pp Camera at Free against Hidden Layer's $0.99. Hidden Layer's advantage is iOS requirement (17.0 vs 26.5). On 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
2pp Camera 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 | 2pp Camera | Hidden Layer |
|---|---|---|
| Price | Free — better | $0.99 |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 26.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Xiaonan Wang | 北北 宋 |
In-app purchases
2pp Camera
No in-app purchases
Hidden Layer
No in-app purchases







