# SpotBuoy vs Astro (Astrolabe Countdown)

The clearest difference is in-app purchases: SpotBuoy at none against Astro (Astrolabe Countdown)'s 3. SpotBuoy also leads on iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Astro (Astrolabe Countdown) sells 3 in-app purchases, starting at $7.99 per year. SpotBuoy asks for nothing beyond the download.

## The numbers

| Metric | SpotBuoy | Astro (Astrolabe Countdown) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 35 MB | 14 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Murat Almat](https://appshunter.io/developer/1748217001) | [Chikai Lai](https://appshunter.io/developer/1787777343) |

## What reviewers say

### SpotBuoy

[App page](https://appshunter.io/ios/app/spotbuoy/id6503179159)

**Features:** macOS Compatibility

**In-app purchases:** none


### Astro (Astrolabe Countdown)

[App page](https://appshunter.io/ios/app/astro-astrolabe-countdown/id6739977285)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astrolabe Pro Access (Annual) | $7.99 | per year |
| Annual Ultra Subscription | $14.99 | per year |
| ULTRA Tier One-Time Purchase | $44.99 | one-time |


## Frequently asked questions

### Is SpotBuoy free?

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

### Is Astro (Astrolabe Countdown) free?

Astro (Astrolabe Countdown) is free to download, with in-app purchases available.

### Do SpotBuoy or Astro (Astrolabe Countdown) have ads?

Neither SpotBuoy nor Astro (Astrolabe Countdown) shows ads.

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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.*