# Stack: Before & After Photos — Auto-Align Before & Afters

> Automatic photo alignment for professional before-and-after comparisons. (iPhone/iPad app by Pavlo Chernovolenko.)

- Source: https://appshunter.io/ios/app/stack-before-and-after-photos/id1095740881 (this page in markdown: same URL + `.md`)
- Developer: [Pavlo Chernovolenko](https://appshunter.io/developer/858517820)
- Category: Photo & Video, Lifestyle
- Price: Free with in-app purchases
- Rating: 3.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 26.0 · 12 MB
- Languages: American English, Ukrainian
- Released: 2016-09-30
- Data updated: 2026-08-12
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/stack-before-and-after-photos/id1095740881/reviews.md

## What is Stack?

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.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Stack Pro (Lifetime) | $4.99 | one-time |



## Frequently asked questions about Stack

### How does Stack align photos automatically?

Stack uses advanced on-device computer vision to automatically align your photos with high accuracy. This technology helps create seamless before-and-after comparisons without manual effort.

### Can I manually adjust photo alignment in Stack?

Yes, while Stack offers automatic alignment, you can also make precise manual adjustments when needed to ensure your comparisons are perfect.

### What kind of videos can I export from Stack?

You can export engaging animated videos for social media, showcasing your before-and-after comparisons. These videos can be exported at up to 120 FPS for incredibly smooth playback.

### Does Stack have ads?

The provided data does not specify if Stack contains advertisements. However, it is free to use with optional in-app purchases for advanced features.

### What are the in-app purchase options in Stack?

Stack is free to use, but you can upgrade to unlock unlimited automatic photo alignment. This upgrade offers the fastest and most accurate comparison workflow available, with no recurring subscriptions.

### Is Stack suitable for all devices?

Stack is supported on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### How often is Stack updated?

The latest version of Stack was released on June 4, 2026, indicating recent development activity. This suggests the app is actively maintained and improved.

### What is the user sentiment for Stack?

Stack has a rating of 3.0 stars from 2 ratings. This suggests a mixed reception from its current user base.

## Version history (last 5 releases)

### 2.0.1 — 2026-06-09

Map View for Stacks. View all stacks on a map and quickly navigate back to the exact spot. Great for trail maintenance, construction projects, journaling, and documenting changes over time.

### 2.0.0 — 2026-06-04

Stack 2.0 includes redesigned UX, fully local, offline capabilities including on device computer vision matching algorithms. Export to gallery, video generation and many more.

### 1.2.1 — 2018-03-06

This app has been updated by Apple to display the Apple Watch app icon.

- Private stacks
- Stack edit
- New sharing feature (now you can share stack url to you friends so they can see it using web browser)
- Bug fixes, stability improvements

### 1.2 — 2016-11-07

- Critical login bug fixed
- Better Facebook integration
- Small fixes

### 1.1 — 2016-11-02

- Stack labels added
- Embed stack to website/blog
- Facebook sharing 
- Profile page improvements
- Small UI changes
- Less internet usage

## Apps similar to Stack

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Phaze: Before > After Photos](https://appshunter.io/ios/app/phaze-before-after-photos/id1237356736) | 4.2 (38) | Free | Photo & Video |
| [TimeLens](https://appshunter.io/ios/app/timelens/id1240390371) | 4.3 (20) | Free | Photo & Video |
| [Before and After App](https://appshunter.io/ios/app/before-and-after-app/id592119245) | 3.1 (13) | Free | Photo & Video |
| [TimeWarp - Then & Now](https://appshunter.io/ios/app/timewarp-then-and-now/id1526855626) | 4.2 (5) | Free | Photo & Video |
| [BeforeAfter, Instant Watermark](https://appshunter.io/ios/app/beforeafter-instant-watermark/id1023269035) | 4.8 (2,150) | Free | Photo & Video |
| [Before After Collages - Stitch](https://appshunter.io/ios/app/before-after-collages-stitch/id1212194323) | 4.7 (114) | Free | Photo & Video |

## More apps by Pavlo Chernovolenko

- [KitFlight](https://appshunter.io/ios/app/kitflight/id6670708403)

All apps by Pavlo Chernovolenko: https://appshunter.io/developer/858517820

## Related topics

[stack pictures](https://appshunter.io/ios/topics/stack-pictures)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*