Stack vs Image Stack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stack
Effortlessly create professional before-and-after photo and video comparisons. Advanced on-device technology automatically aligns your images, perfect for showcasing transformations in fitness, renovations, or projects. Export smooth, high-quality animations for social media.
- Automatic photo alignment
- Manual adjustment options
- Create before-and-after comparisons
- Export animated videos
- Match animation to music BPM
- High FPS video export
- On-device processing
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Stack is the easiest way to create perfectly aligned before-and-after photos and videos. Powered by advanced on-device computer vision, Stack automatically aligns your photos with exceptional accuracy, helping you showcase transformations, progress, and projects without tedious manual adjustments. Whether you’re documenting a renovation, fitness journey, restoration, build project, or creative work, Stack makes your before-and-after comparisons look professional and effortless. Create engaging animations and export high-quality videos ready for social media. Fine-tune transition speed, match animations to any music BPM, and export at up to 120 FPS for incredibly smooth playback. Features: • Automatic photo alignment using advanced on-device computer vision • Precise manual adjustments when needed • Create stunning before-and-after comparisons in seconds • Export animated videos for social media • Match animation speed to any music BPM • Export at up to 120 FPS • Fast, private processing directly on your device • No watermarks on your work Stack is free to use. Upgrade to unlock unlimited automatic photo alignment and get the fastest, most accurate comparison workflow available. No recurring subscriptions. No monthly fees. No annual plans. Just a powerful before-and-after app built for creators, makers, professionals, and anyone who wants to showcase progress the right way.
Image Stack
This app streamlines image processing by allowing batch conversion, resizing, and renaming. Apply presets, add watermarks, and adjust quality settings with ease. It's designed for efficient handling of multiple images across devices.
- Batch image conversion
- Apply multiple presets
- Rename files
- Resize images
- Add overlays/watermarks
- Adjust quality and metadata
- iCloud preset sync
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Image Stack converts images using presets to change formats, resize, rename, and more—whether you’re processing one image or thousands, everything is ready with just a few taps. KEY FEATURES • Batch convert images into modern formats • Apply one or more presets to avoid repetitive work • Rename files with prefixes, suffixes, or replacements • Resize images to match your requirements • Add overlays such as watermarks • Adjustable quality and metadata options • Drag-and-drop simplicity • Presets sync via iCloud for all your devices • Ultra-fast processing • Works on both macOS and iOS and iPadOS IDEAL FOR • Photographers organizing shoots • Designers exporting assets • Content creators preparing media • Anyone converting or renaming small or large image sets Image Stack is free to download and use. You can work with the app for as long as you like. To unlock the full experience and remove trial limits—such as the daily image limit—you can activate the full version with a one-time in-app purchase. The purchase is valid across all versions of Image Stack, including Mac, iPhone, and iPad. Is there any feature you are missing? Let me know!
Screenshots
Verdict
The clearest difference is iOS requirement: Image Stack at 18.0 against Stack's 26.0. On price, update cadence, ads and in-app purchases 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. Stack sells 1 one-off in-app purchase and Image Stack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.
| Parameter | Stack | Image Stack |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavlo Chernovolenko | Daniel Witt |
Customer experience
Stack
Image Stack
In-app purchases
Stack
- Stack Pro (Lifetime)$4.99
Image Stack
- Full Version$9.99









