# OnDevice AI Image Studio vs Image Stack

The clearest difference is price: Image Stack at Free against OnDevice AI Image Studio's $3.99. OnDevice AI Image Studio's advantage is in-app purchases (none vs 1) and iOS requirement (16.2 vs 18.0). On update cadence, ads and device support there is nothing between them.

Image Stack is free to download; OnDevice AI Image Studio costs $3.99 up front. Image Stack sells 1 one-off in-app purchase. OnDevice AI Image Studio asks for nothing beyond the download.

OnDevice AI Image Studio ships an update every 2 months, Image Stack monthly. The most recent releases landed on August 12, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | OnDevice AI Image Studio | Image Stack |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 2.4 GB | 13 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [EyeOS Store Inc.](https://appshunter.io/developer/1036418634) | [Daniel Witt](https://appshunter.io/developer/1438848391) |

## What reviewers say

### OnDevice AI Image Studio

[App page](https://appshunter.io/ios/app/ondevice-ai-image-studio/id6751647215)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Image Stack

[App page](https://appshunter.io/ios/app/image-stack/id6757393848)

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.

**Highlights:** Batch image conversion, Apply multiple presets, Rename files, Resize images, Add overlays/watermarks, Adjust quality and metadata, iCloud preset sync

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


## Frequently asked questions

### Is OnDevice AI Image Studio free?

OnDevice AI Image Studio costs $3.99, with no in-app purchases.

### Is Image Stack free?

Image Stack is free to download, with in-app purchases available.

### Do OnDevice AI Image Studio or Image Stack have ads?

Neither OnDevice AI Image Studio nor Image Stack shows ads.

### Which is updated more often, OnDevice AI Image Studio or Image Stack?

OnDevice AI Image Studio ships an update every 2 months, and Image Stack monthly. Most recently, OnDevice AI Image Studio was updated on August 12, 2026 and Image Stack on September 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*