# PGYTECH vs RoboTou Stacker

The clearest difference is review sentiment: RoboTou Stacker at 100% against PGYTECH's 53%. RoboTou Stacker also leads on rating (5.0 vs 3.5). PGYTECH's advantage is ratings volume (44 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PGYTECH sells 2 in-app purchases, starting at $0.99 per year and RoboTou Stacker sells 2 in-app purchases, starting at $5.00 per year. Whichever you choose, the download price is not the number that matters.

RoboTou Stacker holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: PGYTECH has 44 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 53% of PGYTECH's written reviews are positive against 100% of RoboTou Stacker's.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | PGYTECH | RoboTou Stacker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (44 ratings)](https://appshunter.io/ios/app/pgytech-pro-camera-and-editor/id6744435451/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/robotou-stacker/id6761755082/reviews)** |
| Number of ratings | **44** | 1 |
| Positive reviews | 53.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 412 MB | 88 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [PGYTECH Co.,Ltd](https://appshunter.io/developer/1807712922) | [振国 吴](https://appshunter.io/developer/1739933647) |

## What reviewers say

### PGYTECH

[App page](https://appshunter.io/ios/app/pgytech-pro-camera-and-editor/id6744435451)

This app provides advanced camera controls and specialized shooting modes for professional-level photography and videography. It offers manual adjustments, creative filters, and robust video features like 4K recording and Log mode.

**Highlights:** Multi-Scene Shooting Modes (Photo, Video, Time-Lapse, Slow Shutter), Manual Camera Controls (Focus, Shutter Speed, ISO, White Balance), 4K Video Stabilization, Stylized Filters with Intensity Adjustment, External Recording Support, Electronic Image Stabilization, Log Mode & LUT Import

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | per year |
| Pro | Free | one-time |


### 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 |


## Frequently asked questions

### Is PGYTECH free?

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

### Is RoboTou Stacker free?

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

### Which has better reviews, PGYTECH or RoboTou Stacker?

RoboTou Stacker is rated higher. PGYTECH averages 3.5 out of 5 from 44 ratings, while RoboTou Stacker averages 5.0 from 1 ratings.

### Do PGYTECH or RoboTou Stacker have ads?

Neither PGYTECH nor RoboTou Stacker shows ads.

### Which is updated more often, PGYTECH or RoboTou Stacker?

PGYTECH ships an update every 5 days, and RoboTou Stacker every 5 days. Most recently, PGYTECH was updated on October 12, 2026 and RoboTou Stacker on September 29, 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.*