Track Sun vs AstroPup View
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Track Sun
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The sun tracking can be easily achieved by connection to the Skywatcher mount.
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.
- FITS and XISF format support
- GPU-accelerated rendering
- Automatic advanced stretching
- QuickLook integration
- Icon creation
- Smart metadata display
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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
Screenshots
Verdict
The clearest difference is update cadence: AstroPup View at every 2 weeks against Track Sun's every 5 months. Track Sun's advantage is iOS requirement (14.0 vs 18.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Track Sun ships an update every 5 months, AstroPup View every 2 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | Track Sun | AstroPup View |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 43 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | SynUe Tech. Co., Ltd | Aaron Freimark |
In-app purchases
Track Sun
No in-app purchases
AstroPup View
No in-app purchases
