PGYTECH vs RoboTou Stacker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PGYTECH
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.
- 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
Read full descriptionHide full description
PGYTECH is a pro camera and photo editor built for iPhone creators. Capture high-quality photos, shoot 4K Log video, explore film-inspired looks, and fine-tune your images — all in one streamlined workflow. ● PRO CAMERA CONTROLS Take control of Focus, Shutter, ISO, White Balance and Tint. Lock white balance during recording and save frequently used shooting settings for faster setup. ● PRO PHOTO & VIDEO • HEIF, JPEG and ProRAW photo formats • 4K video up to 60 fps • 1080p video up to 120 fps • HEVC, ProRes Proxy, ProRes LT and ProRes • Log recording and LUT import • External storage for supported photo and video formats ● CREATIVE SHOOTING Choose from 6 shooting modes: • Photo • Video • 4K Live • Retro Camera with film-inspired filters • Time-Lapse • Slow Shutter for motion trails and long-exposure effects Built-in filters support adjustable intensity, giving you more control over every look. ● PHOTO EDITING After shooting, adjust exposure, highlights, shadows, HSL, and more directly in the built-in album. AI Upscale makes images clearer. Watermarks and custom signatures can also be re-edited later, making creation more flexible. Convert videos in any format to Live format, making your dynamic moments clearer and more textured. ● MORE WAYS TO SHOOT Connect supported Bluetooth accessories such as MagCam and RetroVa for physical-button camera control. Whether you're capturing everyday moments, travel, street photography, film-style photos or professional video, PGYTECH gives you better control from capture to edit. *Some features depend on your iPhone model and hardware capabilities. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
RoboTou Stacker
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.
- On-device image stacking
- Automatic masking and alignment
- Starry sky stacking
- Star trail stacking
- Car-light trail stacking
- Local preview generation
- Export to Photos
Read full descriptionHide full description
RoboTou Stacker brings precision image stacking and on-device AI star removal to iPhone and iPad. Choose a workflow for your photography: • Starry Sky Stack — Align and combine night-sky photos for cleaner, more detailed results. • Landscape Stack — Reduce noise and improve landscape images through multi-frame stacking. • Star & Light Trails — Create star-trail and car-light-trail images. • Star Trail Pro — Produce advanced star-trail results with additional processing options. • AI Star Removal — Remove stars from a single image using an on-device Core ML model. KEY FEATURES • Import images from Photos or Files • Automatic masking and image alignment • 4K and 1080p output resolution options • Local preview generation and project management • Export finished images back to Photos • On-device processing—your source images do not need to be uploaded ROBOTOU PRO Landscape Stack and Star & Light Trails remain available for free. RoboTou Pro unlocks Starry Sky Stack, Star Trail Pro, and AI Star Removal through an annual subscription or a one-time lifetime purchase. Privacy Policy: https://www.robotou.cn/robotou-stacker-ios-privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | PGYTECH | RoboTou Stacker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (44 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 53.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 44 — better | 1 |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 412 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | PGYTECH Co.,Ltd | 振国 吴 |
Customer experience
PGYTECH
RoboTou Stacker
In-app purchases
PGYTECH
- Pro$0.991 Year
- Pro2 variantsFree
RoboTou Stacker
- RoboTou Stacker Pro Annual$5.001 Year
- RoboTou Stacker Pro Lifetime$39.99
