# KeckWatch vs ASGuide

The clearest difference is rating: ASGuide at 4.8 against KeckWatch's 4.3. ASGuide also leads on review sentiment (100% vs 83%). KeckWatch's advantage is update cadence (every 5 weeks vs every 4 months) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

ASGuide holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 9 and 9 respectively. Written reviews point the same way: 83% of KeckWatch's written reviews are positive against 100% of ASGuide's.

KeckWatch ships an update every 5 weeks, ASGuide every 4 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | KeckWatch | ASGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (9 ratings)](https://appshunter.io/ios/app/keckwatch/id953228443/reviews) | **[4.8 (9 ratings)](https://appshunter.io/ios/app/asguide/id1500363899/reviews)** |
| Number of ratings | 9 | 9 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 147 MB | 33 MB |
| Requires iOS | **7.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mike Smithwick](https://appshunter.io/developer/294198918) | [Philip Perez](https://appshunter.io/developer/1500363898) |

## What reviewers say

### KeckWatch

[App page](https://appshunter.io/ios/app/keckwatch/id953228443)

Explore the cosmos with detailed information on stars, planets, galaxies, and nebulae. Discover celestial objects using your device's compass and GPS, and stay updated with news from the W. M. Keck Observatory. Features a night-vision-friendly red interface and offline access.

**Highlights:** Offline celestial exploration, Real-time telescope status, Compass and GPS integration, Detailed object information, Hawaiian star names, Night vision red interface, Keck Observatory news

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ASGuide

[App page](https://appshunter.io/ios/app/asguide/id1500363899)

Explore the night sky with this astronomy companion. Discover planets, galaxies, nebulae, and more visible from your location. Generate custom viewing lists and preview celestial objects with an interactive sky atlas.

**Highlights:** Discover celestial objects visible from your location, Generate custom viewing lists, View detailed observation information, Interactive sky atlas preview, Dark mode for nighttime viewing, Sunrise/sunset and moon phase dashboard

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KeckWatch free?

KeckWatch is free to download, with no in-app purchases.

### Is ASGuide free?

ASGuide is free to download, with no in-app purchases.

### Which has better reviews, KeckWatch or ASGuide?

ASGuide is rated higher. KeckWatch averages 4.3 out of 5 from 9 ratings, while ASGuide averages 4.8 from 9 ratings.

### Do KeckWatch or ASGuide have ads?

Neither KeckWatch nor ASGuide shows ads.

### Which is updated more often, KeckWatch or ASGuide?

KeckWatch ships an update every 5 weeks, and ASGuide every 4 months. Most recently, KeckWatch was updated on October 14, 2026 and ASGuide on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*