Comparison

RoboTou Stacker vs clientgallery.io

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

Bring image stacking and AI star removal to your iPhone and iPad. RoboTou Stacker gives night-sky and landscape photographers practical tools for processing photos directly on their devices. Import images from Photos, Files, or a folder, choose a processing mode, preview the result, and save it back to Photos. Image processing runs locally, with no account registration or photo uploads required. CHOOSE YOUR WORKFLOW • Starry Sky Stack: Automatically generate a sky mask, align the stars, and process the sky and foreground separately. • Landscape Stack: Combine multiple photos of a static scene captured from a fixed position. • Star & Light Trails Stack: Use maximum-value stacking to combine star trails and vehicle light trails. • Star Trail Pro: Stack up to 100 images with a fade-enhanced workflow. • AI Star Removal: Process a single image on your device to create a starless image for further sky-background editing. OUTPUT YOUR WAY Choose a 4K or 1080p output preset while preserving the original aspect ratio. Smaller source images retain their original resolution. Both stacking and AI Star Removal follow your in-app resolution setting. MADE FOR YOUR DEVICE Switch between English and Chinese. Layouts optimized for the unfolded iPhone Duo display make better use of screen space across Home, mode selection, importing, and Settings. FREE FEATURES AND ROBOTOU PRO Landscape Stack and basic Star & Light Trails Stack are free. Starry Sky Stack, Star Trail Pro, and AI Star Removal require RoboTou Pro, available as an auto-renewing annual subscription or a one-time lifetime purchase. Manage or cancel subscriptions in your Apple ID settings. Privacy Policy: https://www.robotou.cn/robotou-stacker-ios-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

clientgallery.io

Features
Read full description

ClientGallery is the app for clientgallery.io, the client gallery platform for professional photographers. Your whole studio in three steps: • Shooting: live capture from your camera into the gallery as you shoot, including the Hasselblad X2D over Wi-Fi. Shot lists and a model releases kiosk that clients sign on the spot. • Review: a review room where you and your team draw and annotate on photos, with Apple Pencil on iPad. • Delivery: share the client link from anywhere and see picks arrive the moment your client is done. Also included: • Analytics for views, downloads and picks • A portfolio on your own subdomain • Team seats so assistants and editors work in the same studio • Galleries under your own name: your subdomain, your logo, your colors, no ClientGallery branding • Available in 9 languages Every feature is on every plan, including free. The free account holds 1 gallery with up to 1,000 photos. Membership unlocks unlimited galleries and up to 500,000 photos for $9.99/month or $109.99/year (one month free). Team seats are available as add-on subscriptions. Membership works on the web, in Lightroom and in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://clientgallery.io/privacy

Screenshots

RoboTou Stacker4 screens
clientgallery.io4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RoboTou Stacker sells 2 in-app purchases, starting at $7.99 per year and clientgallery.io sells 10 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RoboTou Stacker ships an update every 5 days, clientgallery.io every 3 weeks. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 8 level
RoboTou Stacker versus clientgallery.io: the parameters behind the verdict, then further details
ParameterRoboTou Stackerclientgallery.io
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size88 MB7 MB
Age rating4+12+
Developer振国 吴Pass Publishing Inc.

In-app purchases

2 purchases

RoboTou Stacker

Subscriptions1
  • RoboTou Stacker Pro Annual$7.991 Year
One-time1
  • RoboTou Stacker Pro Lifetime$39.99
10 purchases

clientgallery.io

Subscriptions10
  • 1 Team Seat (Monthly)$7.991 Month
  • ClientGallery Membership$9.991 Month
  • 2 Team Seats (Monthly)$15.991 Month
Show 7 more
  • 3 Team Seats (Monthly)$23.991 Month
  • 5 Team Seats (Monthly)$39.991 Month
  • 1 Team Seat (Yearly)$87.991 Year
  • ClientGallery Membership$109.991 Year
  • 2 Team Seats (Yearly)$175.991 Year
  • 3 Team Seats (Yearly)$264.991 Year
  • 5 Team Seats (Yearly)$439.991 Year

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 31, 2026 and clientgallery.io on November 1, 2026.

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