# RoboTou Stacker vs MarKit Pro

RoboTou Stacker and MarKit Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. RoboTou Stacker sells 2 in-app purchases, starting at $5.00 per year and MarKit Pro sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

RoboTou Stacker ships an update every 5 days, MarKit Pro every 4 days. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | RoboTou Stacker | MarKit Pro |
| --- | --- | --- |
| 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 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 88 MB | 16 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [振国 吴](https://appshunter.io/developer/1739933647) | [良骏 查](https://appshunter.io/developer/6794410252) |

## 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 |


### MarKit Pro

[App page](https://appshunter.io/ios/app/markit-pro/id6794607659)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅 | $4.99 | per month |
| 年度订阅 | $49.99 | per year |


## Frequently asked questions

### Is RoboTou Stacker free?

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

### Is MarKit Pro free?

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

### Do RoboTou Stacker or MarKit Pro have ads?

Neither RoboTou Stacker nor MarKit Pro shows ads.

### Which is updated more often, RoboTou Stacker or MarKit Pro?

RoboTou Stacker ships an update every 5 days, and MarKit Pro every 4 days. Most recently, RoboTou Stacker was updated on October 15, 2026 and MarKit Pro 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.*