# Appstral vs Clavis

The clearest difference is in-app purchases: Clavis at none against Appstral's 3. Clavis also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Appstral sells 3 in-app purchases, starting at $0.99 per month. Clavis asks for nothing beyond the download.

Appstral ships an update every 3 weeks, Clavis every 5 days. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Appstral | Clavis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/appstral/id6746877528/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 24 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Tomas Rodrigo Sitta](https://appshunter.io/developer/1818899204) | [Pedro Henrique Oliveira Sousa](https://appshunter.io/developer/1875393541) |

## What reviewers say

### Appstral

[App page](https://appshunter.io/ios/app/appstral/id6746877528)

This app combines astronomical precision, AI-powered interpretations, and advanced time navigation for astrological practice. It offers real-time sky views, solar return calculations, and dynamic transit overlays. An integrated AI copilot provides instant calculations and interpretations.

**Highlights:** AI Astrological Copilot (STELLA), Real-time sky navigation, Advanced Solar Returns, Dynamic Transits to Natal Charts, NASA-precision calculations, Historical ephemerides, Personalized transits with notifications

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solar Plan | $0.99 | per month |
| Stellar Plan | $1.99 | per month |
| 5 Chart Pack | $4.99 | one-time |


### Clavis

[App page](https://appshunter.io/ios/app/clavis-planetary-clock/id6758866461)

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

**In-app purchases:** none


## Frequently asked questions

### Is Appstral free?

Appstral is free to download, with in-app purchases available.

### Is Clavis free?

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

### Do Appstral or Clavis have ads?

Neither Appstral nor Clavis shows ads.

### Which is updated more often, Appstral or Clavis?

Appstral ships an update every 3 weeks, and Clavis every 5 days. Most recently, Appstral was updated on September 8, 2026 and Clavis on September 18, 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.*