Matte Viewer vs Depth3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Matte Viewer
This app allows you to preview and export depth and semantic maps from your iPhone photos. It offers an elegant interface and supports desktop-class features on iPad and Mac. The app prioritizes user privacy and has a very small file size.
- Preview depth and semantic maps
- Export mattes for 3rd party software
- Elegant and information-dense interface
- Desktop-class features on iPad/Mac
- Privacy-focused with no tracking
- Small app size
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Matte Viewer lets you quickly preview the mattes in photos taken with your iPhone, including the depth map and semantic maps. You can export them and use them in 3rd party software such as Photoshop, Touch Designer, in custom shaders, and so on. To have the most matte data available in your photos, use the Portrait mode in iPhone's Camera. - Elegant and information dense interface that quickly lets you preview all the different mattes. - Supports desktop class features on iPad + Mac: multiple windows, open through drag & drop, keyboard shortcuts, etc. - Respects your privacy: no 3rd party libraries or tracking. Uses the latest iOS APIs so you don't have to give access to your whole photo library. - Extremely small app size: only a few hundred kilobytes. Matte Viewer is part of PhotoTools by Héliographe: check out our website at https://heliographe.studio for more fantastic photography apps.
Depth3D
This app uses on-device AI to transform standard videos into stereo 3D. It generates depth previews, side-by-side 3D videos for compatible displays, and raw depth data. Users can adjust stereo strength and output resolution after initial depth computation.
- On-device AI depth estimation
- MP4 and MOV video conversion
- Stereo side-by-side 3D output
- Depth preview video generation
- Raw depth data export (.npy)
- Adjustable stereo strength
- Adjustable output resolution
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Depth3D converts local MP4 and MOV videos into stereo side-by-side 3D video using on-device AI depth estimation. Import a video, and Depth3D processes it entirely on your device to generate: • A depth preview video • A stereo side-by-side (SBS) video for compatible 3D viewers and displays • Raw depth data (.npy) for advanced workflows After depth data is generated once, you can adjust stereo strength or output resolution and regenerate the stereo video without recomputing depth. All processing happens on-device. No uploads. No servers. No account required.
Screenshots
Verdict
The clearest difference is rating: Depth3D at 4.0 against Matte Viewer's 3.0. Depth3D also leads on in-app purchases (none vs 1) and update cadence (every 11 days vs monthly). On price, ratings volume, 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
Both are free to download. Matte Viewer sells 1 one-off in-app purchase. Depth3D asks for nothing beyond the download.
Depth3D holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Matte Viewer ships an update monthly, Depth3D every 11 days. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.
| Parameter | Matte Viewer | Depth3D |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Monthly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 223 MB |
| Age rating | 4+ | 4+ |
| Developer | Héliographe, Inc | Maiji Saito |
Customer experience
Matte Viewer
Depth3D
In-app purchases
Matte Viewer
- Unlock Export$4.99
Depth3D
No in-app purchases
Questions
Is Matte Viewer free?
Is Depth3D free?
Which has better reviews, Matte Viewer or Depth3D?
Do Matte Viewer or Depth3D have ads?
Which is updated more often, Matte Viewer or Depth3D?
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