Comparison

SynLink vs AI CometStack

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

Head to head
About

SynLink

This professional controller facilitates astrophotography by offering broad compatibility with major camera brands and astronomical equipment. Its design emphasizes simplicity, restraint, and modernity for an intuitive user experience.

Highlights
  • Broad camera compatibility (Fujifilm, Canon, Nikon, Sony)
  • Supports astronomical cameras
  • Controls equatorial mounts
  • Manages filter wheels and focusers
  • Modern and simple interface
Features
Read full description

It offers seamless compatibility with most mainstream cameras, including Fujifilm, Canon, Nikon, and Sony, as well as the majority of astronomical cameras, equatorial mounts, filter wheels, focusers, rotators, and flat panel devices on the market. SynLink is being developed by following the design philosophy of simplicity, restraint, and modernity.

About

AI CometStack

Features
Read full description

AI CometStack is a breakthrough comet alignment app designed specifically for mobile astrophotography workflows. Overcome the long-standing tradeoff of comet movement during long imaging sessions. Traditionally, you had to choose between sharp stars (streaked comet) or a sharp comet (trailed stars). AI CometStack solves this by eliminating complex desktop compositing and advanced scripting. Core Features Motion-Aware Stacking: Aligns the comet nucleus across time while preserving star geometry. Two-Path Automation: Integrates stars and comets separately, then blends them on-device. Batch Processing: Handles full-night capture sets with uniform parameters. Pro Format Support: Works natively with FITS, RAW, TIFF, PNG, and JPEG files. Mobile-First Flow: Real-time previews and guided steps built for iOS deep-sky sessions. Simple Workflow Import your exposure frames (or use the included sample files). Let the app automatically track and model comet motion. Validate and adjust the seamless background blend in real time. Export gallery-grade, press-ready images instantly from the field. Support & Feedback Questions, feedback, or need help? Contact us directly at ustransit74@gmail.com Privacy policy and term of use (EULA) is at https://deepskycolor.blogspot.com/2018/12/privacy-policy-for-deep-sky-color-app.html

Screenshots

SynLink4 screens
AI CometStack2 screens

Verdict

The call

The clearest difference is in-app purchases: SynLink at none against AI CometStack's 1. SynLink also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price and ads 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. AI CometStack sells 1 in-app purchase, starting at $9.99 per year. SynLink asks for nothing beyond the download.

Scorecard3 real differences · 6 level
SynLink versus AI CometStack: the parameters behind the verdict, then further details
ParameterSynLinkAI CometStack
PriceFreeFree
Rating4.3 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size221 MB105 MB
Age rating4+4+
DeveloperSuzhou UMa Technology Co., Ltdyong chong loh

In-app purchases

None

SynLink

No in-app purchases

1 purchases

AI CometStack

Subscriptions1
  • Yearly Subscription$9.991 Year

Questions

Is SynLink free?
SynLink is free to download, with no in-app purchases.
Is AI CometStack free?
AI CometStack is free to download, with in-app purchases available.
Do SynLink or AI CometStack have ads?
Neither SynLink nor AI CometStack shows ads.

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