Comparison

AstroPup View vs SQM Mobile

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

Head to head
About

AstroPup View

Easily manage and view astronomical image files like FITS and XISF. Offers GPU-accelerated rendering, automatic stretching, and QuickLook integration for a seamless user experience. Create icons and display smart metadata directly from your files.

Highlights
  • FITS and XISF format support
  • GPU-accelerated rendering
  • Automatic advanced stretching
  • QuickLook integration
  • Icon creation
  • Smart metadata display
Read full description

Astrophotography images traditionally use an obscure raw image format called FITS, and a newer format called XISF. AstroPup View is designed to manage these files as easily as JPEGs: through Finder integration and viewer support. * XISF and FITS format support * GPU-accelerated rendering * Automatic advanced stretching * QuickLook integration * Icon creation * Smart metadata display

About

SQM Mobile

Features
Read full description

Bring all your sky quality measurements together in one place. SQM Mobile is the ideal companion for handheld Sky Quality Meters, automatically synchronizing field measurements with SQM Toolbox on your Mac. It also imports measurements exported from Dark Sky Meter Pro, making it easy to build a single long-term archive of all your observations. KEY FEATURES Field-Ready Data Collection * Quick and easy measurement entry for handheld SQM devices * Manual entry of measurements from Dark Sky Meter * Automatic GPS location recording for each measurement * Timestamp for accurate astronomical correlation * Offline measurement storage – sync whenever a connection becomes available * Bubble level for accurate zenith pointing * Import measurements exported from Dark Sky Meter Pro Smart Location Features * Automatic GPS coordinate capture * Manual location override (to define local sky-background conditions during site surveys) * Perfect for camping trips, dark-sky site surveys and travel observations Automatic Cloud Sync * Seamlessly sync measurements to SQM Toolbox on your Mac via iCloud * Private, secure storage – only you can access your measurements * Works anywhere with an internet connection – no complex setup required * Real-time synchronization across all your Apple devices Quick Analysis * Instant Bortle classification for every measurement * On-device light pollution assessment * Comparison with natural sky-background brightness * Simple graphical display including twilight conditions * Measurement validation and quality indicators * Clean, intuitive interface designed for field use Astronomical Context * Automatic twilight condition detection * Moon phase information for every measurement * Sun elevation calculations Simple and Reliable * Designed for easy use in the dark * Large, clear controls for nighttime operation * No account setup required – simply use your existing iCloud account Perfect for * Amateur astronomers and citizen scientists carrying out site surveys * Researchers monitoring light pollution * Dark-sky organizations documenting observing conditions * Anyone using handheld SQM instruments or Dark Sky Meter who wants long-term storage, synchronization and analysis of their measurements Requires: iOS 17.0 or later, iCloud account Works with: Unihedron Sky Quality Meter (SQM, SQM-L), Dark Sky Meter Pro imports, and manual entry from Dark Sky Meter. Companion to: SQM Toolbox for macOS (available separately)

Screenshots

AstroPup View1 screens
SQM Mobile4 screens

Verdict

The call

The clearest difference is update cadence: AstroPup View at every 2 weeks against SQM Mobile's every 4 weeks. AstroPup View also leads on device support (3 vs 1). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AstroPup View ships an update every 2 weeks, SQM Mobile every 4 weeks. The most recent releases landed on July 3, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 7 level
AstroPup View versus SQM Mobile: the parameters behind the verdict, then further details
ParameterAstroPup ViewSQM Mobile
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS18.017.6 — better
Further details — not scored
Size21 MB42 MB
Age rating4+4+
DeveloperAaron FreimarkGerSpatial

In-app purchases

None

AstroPup View

No in-app purchases

None

SQM Mobile

No in-app purchases

Questions

Is AstroPup View free?
AstroPup View is free to download, with no in-app purchases.
Is SQM Mobile free?
SQM Mobile is free to download, with no in-app purchases.
Do AstroPup View or SQM Mobile have ads?
Neither AstroPup View nor SQM Mobile shows ads.
Which is updated more often, AstroPup View or SQM Mobile?
AstroPup View ships an update every 2 weeks, and SQM Mobile every 4 weeks. Most recently, AstroPup View was updated on July 3, 2026 and SQM Mobile on September 9, 2026.

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