Comparison

SCN vs Celvion Stack

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

Head to head
About

SCN

Easily distort your photos with unique scanning effects. Explore various scan modes, gyroscope control, and color options to create visually striking images. Use live mode to apply distortions to your real-time camera view.

Highlights
  • Multiple scan modes (SYNC, SEQUENCE, OFFSET)
  • Live camera distortion
  • Gyroscope control for movement
  • Adjustable image position, rotation, and scale
  • Customizable aspect ratio and background
  • Scan duration and smoothing options
Features
Read full description

SCN lets you distort your pictures in a cool and simple way! Use SCN like a traditional copier or scanner that creates cool effects by moving an image while scanning it. Create stunning distortion effects by combining various settings, including different scan modes, gyroscope control, colors and formats. Choose LIVE mode to distort your current view on the world! Features: -3 different scan modes: 
SYNC for natural color output, just like a real scanner. 
SEQUENCE for an individual scan of each of the RGB channels. 
OFFSET for a custom distance between the RGB channels. -LIVE-mode to get the actual live-view from the camera -move, rotate and scale the placed image or the live-view on the scanning plate -move and rotate with the iPhone’s gyroscope -change the aspect ratio for full flexibility -set the scan duration -change the background color or even remove it -set the start position for the scan -enable 'smoothing' for a smoother movement of the image

About

Celvion Stack

Features
Read full description

Turn a sequence of frames into a cleaner, richer image—entirely on your iPhone or iPad. Celvion Stack gives photographers a complete local workflow for importing RAW/DNG or standard photos, inspecting frames, aligning, stacking, editing, and exporting without a computer. SIX PURPOSE-BUILT STACKING MODES NIGHT Combine multiple exposures to reduce random noise while preserving natural detail and color. MILKY WAY Align the sky and foreground separately so stars can remain sharp while the landscape stays stable. LIGHT TRAILS Blend selected frames into continuous, controlled light trails. SMOOTH WATER & CLOUDS Build a long-exposure look from a sequence, with smoother motion and flexible control. MOVING DISTRACTION REMOVAL Suppress people, vehicles, and other transient elements that appear in only part of the sequence. LANDSCAPE Merge aligned frames for a cleaner, more detailed landscape result. PRO MILKY WAY CONTROL Choose a reference frame, review per-frame quality scores, refine sky/foreground masks, and reject trails from aircraft and satellites, plus other intermittent light streaks, before stacking. RAW LENS CORRECTION When a matching lens profile is available, correct geometric lens distortion. Automatic vignetting and chromatic-aberration correction are not currently included. FULL-RESOLUTION EXPORT Export the final stack as JPEG, PNG, 16-bit TIFF, or 10-bit HEIF, then save it directly to Photos or Files. ON-DEVICE AI On supported devices running iOS 18, use local AI denoise and 4× super resolution. Core stacking works on iOS 17. PRIVATE BY DESIGN Processing stays on your device. Your photos are not uploaded.

Screenshots

SCN4 screens
Celvion Stack4 screens

Verdict

The call

The clearest difference is price: SCN at Free against Celvion Stack's $9.90. SCN also leads on iOS requirement (11.0 vs 17.0). Celvion Stack's advantage is update cadence (every 2 weeks vs every 68 months). 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

CostPrice · In-app purchases · Ads · Monetization

SCN is free to download; Celvion Stack costs $9.90 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SCN ships an update every 68 months, Celvion Stack every 2 weeks. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
SCN versus Celvion Stack: the parameters behind the verdict, then further details
ParameterSCNCelvion Stack
PriceFree — better$9.90
Rating3.4 (27 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings27 — better—
Update frequencyEvery 68 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size0 MB322 MB
Age rating4+4+
DeveloperDominik Seibold新庾 郭

In-app purchases

None

SCN

No in-app purchases

None

Celvion Stack

No in-app purchases

Questions

Is SCN free?
SCN is free to download, with no in-app purchases.
Is Celvion Stack free?
Celvion Stack costs $9.90, with no in-app purchases.
Do SCN or Celvion Stack have ads?
Neither SCN nor Celvion Stack shows ads.
Which is updated more often, SCN or Celvion Stack?
SCN ships an update every 68 months, and Celvion Stack every 2 weeks. Most recently, SCN was updated on October 14, 2026 and Celvion Stack on October 8, 2026.

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