Phocus Mobile vs RoboTou Stacker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phocus Mobile
Edit and manage high-resolution RAW images from Hasselblad cameras on your mobile device. Experience natural color reproduction and advanced noise reduction with HDR capabilities for stunning detail and light.
- HNCS HDR image display, editing, and export
- Full quality RAW editing
- Multi-format RAW/JPG/HEIF download
- TIFF generation for lossless editing
- Camera control of capture parameters
- Download/delete images from camera
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“Hasselblad Natural Noise Reduction” is the first noise reduction model that can run locally on mobile, perfectly preserving Hasselblad's natural tones and image details, and noise reduction of 100 million pixel RAW images can be completed in about 15 seconds, further unlocking the potential of Hasselblad's images. When viewed on an HDR-capable iPhone or iPad, photos shot with the Hasselblad cameras truly come to life in Phocus Mobile — revealing the stunning light and shadow details and rich color gradations enabled by HNCS HDR. Expanding the possibilities of the Hasselblad workflow, Phocus Mobile takes the image editing process to a new, portable level. Enabling the traveling or studio photographer to have a quicker, more seamless workflow. Phocus Mobile can render natural and true colors to the greatest extent, taking full advantage of the Hasselblad Natural Color Solution (HNCS). The following functionality is supported: - Brand-new HNCS HDR image display, editing, and export experience - Full quality raw editing powered by HNCS engine - Support multi-format download (RAW/JPG/HEIF) - Supports generating TIFF for cross-platform quality lossless editing - Download or delete images from camera - Camera control of capture parameters - Supports generating full or medium size JPEG Compatible Camera Models [USB or Wi-Fi]: -X2D II 100C* -CFV 100C* -X2D 100C* -X1D II 50C -CFV II 50C *Only Chinese and English are supported within the app This app is only compatible with iOS and iPadOS. To use it on Mac devices, please download Phocus for Mac from the official Hasselblad website. For X1D/H system cameras, please download Phocus for X1D/H system from the App Store.
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
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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 Phocus Mobile's 46%. RoboTou Stacker also leads on rating (5.0 vs 4.6) and update cadence (every 5 days vs every 2 weeks). Phocus Mobile's advantage is in-app purchases (none vs 2) and ratings volume (522 vs 1). On price, ads, device support and iOS requirement 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. RoboTou Stacker sells 2 in-app purchases, starting at $5.00 per year. Phocus Mobile asks for nothing beyond the download.
RoboTou Stacker holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Phocus Mobile has 522 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 46% of Phocus Mobile's written reviews are positive against 100% of RoboTou Stacker's.
Phocus Mobile ships an update every 2 weeks, RoboTou Stacker every 5 days. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.
| Parameter | Phocus Mobile | RoboTou Stacker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (522 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 46.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 522 — better | 1 |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 435 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Hasselblad | 振国 吴 |
Customer experience
Phocus Mobile
RoboTou Stacker
Bugs and requests
Phocus Mobile
Reported bugs
18 issues- App crashes when opening high ISO files
- Photos disappear after update or when selecting for processing
- Export fails for multiple images, erasing original capture date/time
- Images not available in library despite camera connection
- App crashes on iPad Pro with M1/M2 chips
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- USB-C connection not recognized after updates
- Noise reduction adjustments not updating properly
- Moire and pattern noise appearing on JPEG export
- App fails to connect to X2D despite camera being recognized
- Exposure simulation locked on regardless of camera settings
- EV correction not working in all modes on X2D
- Live view picture cropped on long sides of frame
- Error when saving multiple photos to Photos app (PHPhotosErrorDomain error 3301)
- App crashes when resizing window with Stage Manager on iPad
- Wired connection not supported in recent versions
- TIFF export producing 8-bit files instead of 16-bit
- Drive mode settings overwritten when using remote shutter
- App not recognizing HEIF format files from camera firmware 3.0
Requested features
25 requests- Import photos from external SSD or USB storage
- Manual color control for watermarks
- Support for multiple camera connections
- Layer masking and adjustment layers
- Delayed shutter release/self-timer functionality
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- Erase/content removal tool
- Dodge and burn tools
- Export in HEIF/HEIC format
- 16-bit TIFF export capability
- Perspective/keystone correction
- Batch import retry functionality
- Custom watermark options with date/name
- Geo-tagging support
- Fine art frame auto-application
- Live view support for X2D
- Ability to import RAW files directly from app
- Compressed DNG export option
- Android version of the app
- Black point adjustment
- Portrait orientation support for live view
- Ability to stop interval drive mode remotely
- Precise value input for edits (not just sliders)
- HEIF10 or TIFF16 export for better dynamic range
- Files API integration between mobile and desktop
- Exposure simulation toggle for flash photography
RoboTou Stacker
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Phocus Mobile
No in-app purchases
RoboTou Stacker
- RoboTou Stacker Pro Annual$5.001 Year
- RoboTou Stacker Pro Lifetime$39.99
Questions
Is Phocus Mobile free?
Is RoboTou Stacker free?
Which has better reviews, Phocus Mobile or RoboTou Stacker?
Do Phocus Mobile or RoboTou Stacker have ads?
Which is updated more often, Phocus Mobile or RoboTou Stacker?
Other comparisons
