Comparison

SliceTimeCam vs Matte Viewer

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

Head to head
About

SliceTimeCam

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SliceTimeCam is a camera app that allows you to shoot slit-scan video. Operate the SliceLine, hold the device steady and shoot, and enjoy the artistic changes. You can set the filter, countdown, resolution, and slit size. (Flick left or right to change filters). Take pictures of people, animals, cars, or anything else you like, control SliceLine, and take pictures like you've never seen before. This app is inspired by francois.vogel's slitscan expression.

About

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.

Highlights
  • 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
Features
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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.

Screenshots

SliceTimeCam4 screens
Matte Viewer3 screens

Verdict

The call

The clearest difference is update cadence: SliceTimeCam at weekly against Matte Viewer's monthly. SliceTimeCam also leads on iOS requirement (13.0 vs 16.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SliceTimeCam sells 2 one-off in-app purchases and Matte Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SliceTimeCam ships an update weekly, Matte Viewer monthly. The most recent releases landed on September 26, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
SliceTimeCam versus Matte Viewer: the parameters behind the verdict, then further details
ParameterSliceTimeCamMatte Viewer
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better16.0
Further details — not scored
Size97 MB3 MB
Age rating4+4+
DeveloperReflection through Design StudioHéliographe, Inc

In-app purchases

2 purchases

SliceTimeCam

One-time2
  • Remove Watermark$6.99
  • Support for the Creator$7.99
1 purchases

Matte Viewer

One-time1
  • Unlock Export$4.99

Questions

Is SliceTimeCam free?
SliceTimeCam is free to download, with in-app purchases available.
Is Matte Viewer free?
Matte Viewer is free to download, with in-app purchases available.
Do SliceTimeCam or Matte Viewer have ads?
Neither SliceTimeCam nor Matte Viewer shows ads.
Which is updated more often, SliceTimeCam or Matte Viewer?
SliceTimeCam ships an update weekly, and Matte Viewer monthly. Most recently, SliceTimeCam was updated on September 26, 2026 and Matte Viewer on October 5, 2026.

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