# RoboTou Stacker vs clientgallery.io

The clearest difference is update cadence: RoboTou Stacker at every 5 days against clientgallery.io's every 3 weeks. RoboTou Stacker also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. RoboTou Stacker sells 2 in-app purchases, starting at $5.00 per year and clientgallery.io sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

RoboTou Stacker ships an update every 5 days, clientgallery.io every 3 weeks. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | RoboTou Stacker | clientgallery.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/robotou-stacker/id6761755082/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 88 MB | 7 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [振国 吴](https://appshunter.io/developer/1739933647) | [Pass Publishing Inc.](https://appshunter.io/developer/554577529) |

## What reviewers say

### RoboTou Stacker

[App page](https://appshunter.io/ios/app/robotou-stacker/id6761755082)

Combine multiple photos directly on your device for enhanced results. This app offers automatic masking and alignment for various photography needs, including starry skies and light trails. Process your images locally without needing an account or cloud sync.

**Highlights:** On-device image stacking, Automatic masking and alignment, Starry sky stacking, Star trail stacking, Car-light trail stacking, Local preview generation, Export to Photos

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RoboTou Stacker Pro Annual | $5.00 | per year |
| RoboTou Stacker Pro Lifetime | $39.99 | one-time |


### clientgallery.io

[App page](https://appshunter.io/ios/app/clientgalleryio/id6804119351)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClientGallery Membership | $9.99 | per month |
| ClientGallery Membership | $99.99 | per year |


## Frequently asked questions

### Is RoboTou Stacker free?

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

### Is clientgallery.io free?

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

### Do RoboTou Stacker or clientgallery.io have ads?

Neither RoboTou Stacker nor clientgallery.io shows ads.

### Which is updated more often, RoboTou Stacker or clientgallery.io?

RoboTou Stacker ships an update every 5 days, and clientgallery.io every 3 weeks. Most recently, RoboTou Stacker was updated on October 15, 2026 and clientgallery.io on October 10, 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.*