# iSIMILAR vs PixTwin

The clearest difference is update cadence: iSIMILAR at every 3 weeks against PixTwin's every 2 months. iSIMILAR also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.2). On price, ads and in-app purchases there is nothing between them.

Both are free to download. iSIMILAR sells 1 in-app purchase, starting at $11.99 per year and PixTwin sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

iSIMILAR ships an update every 3 weeks, PixTwin every 2 months. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | iSIMILAR | PixTwin |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 57 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anibal Castano](https://appshunter.io/developer/1782771655) | [建云 董](https://appshunter.io/developer/1530211788) |

## What reviewers say

### iSIMILAR

[App page](https://appshunter.io/ios/app/isimilar/id6738889078)

This app uses on-device AI to find visually similar images within your photo gallery. It works offline, ensuring your photos remain private. Organize screenshots, duplicates, or photos from specific events quickly and efficiently.

**Highlights:** On-device AI visual search, Works completely offline, Finds visually similar images, Privacy-focused, no data upload, Organize screenshots and duplicates, Fast results under 50 ms

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSimilar Annual Plan | $11.99 | per year |


### PixTwin

[App page](https://appshunter.io/ios/app/pixtwin/id6772150812)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PixTwin Premium | $5.99 | one-time |


## Frequently asked questions

### Is iSIMILAR free?

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

### Is PixTwin free?

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

### Do iSIMILAR or PixTwin have ads?

Neither iSIMILAR nor PixTwin shows ads.

### Which is updated more often, iSIMILAR or PixTwin?

iSIMILAR ships an update every 3 weeks, and PixTwin every 2 months. Most recently, iSIMILAR was updated on October 8, 2026 and PixTwin on October 12, 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.*