# Clavis vs NightlyStar

The clearest difference is in-app purchases: Clavis at none against NightlyStar's 4. Clavis also leads on ads (none vs shown) and update cadence (every 4 days vs every 11 days). NightlyStar's advantage is iOS requirement (13.0 vs 17.2). On price and device support there is nothing between them.

Both are free to download. NightlyStar sells 4 in-app purchases, starting at $4.99 per month. Clavis asks for nothing beyond the download.

Clavis ships an update every 4 days, NightlyStar every 11 days. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Clavis | NightlyStar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 11 days |
| Size | 39 MB | 44 MB |
| Requires iOS | 17.2 | **13.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Pedro Henrique Oliveira Sousa](https://appshunter.io/developer/1875393541) | [湖北省逸辉科技](https://appshunter.io/developer/1855438193) |

## What reviewers say

### Clavis

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

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### NightlyStar

[App page](https://appshunter.io/ios/app/nightlystar/id6760819791)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmic Access – Monthly | $4.99 | per month |
| Nightly Star Premium Monthly | $9.99 | per month |
| Cosmic Access – Yearly | $39.99 | per year |
| Nightly Star Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is Clavis free?

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

### Is NightlyStar free?

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

### Do Clavis or NightlyStar have ads?

NightlyStar shows ads; Clavis does not.

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

Clavis ships an update every 4 days, and NightlyStar every 11 days. Most recently, Clavis was updated on October 23, 2026 and NightlyStar on October 9, 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.*