# Clavis vs Surya Time

The clearest difference is price: Clavis at Free against Surya Time's $0.99. Clavis also leads on device support (3 vs 1). Surya Time's advantage is update cadence (every 2 days vs every 5 days). On ads, in-app purchases and iOS requirement there is nothing between them.

Clavis is free to download; Surya Time costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Clavis ships an update every 5 days, Surya Time every 2 days. The most recent releases landed on October 5, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Clavis | Surya Time |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Free |
| Size | 31 MB | 4 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Henrique Oliveira Sousa](https://appshunter.io/developer/1875393541) | [Max Schleining](https://appshunter.io/developer/6779640826) |

## 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


### Surya Time

[App page](https://appshunter.io/ios/app/surya-time-sun-clock/id6804929118)

This app redefines time by tracking the sun's position relative to your local horizon. It divides daylight into natural hours, showing your progress through the day and accounting for your actual skyline. Features include a vantage map for extended sunsets and offline functionality.

**Highlights:** Daylight-based time division, Actual skyline visualization, Vantage Map for extended sunsets, Offline functionality, Home and lock screen widgets, True local solar noon, Sky pointer for sun/moon location

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

**In-app purchases:** none


## Frequently asked questions

### Is Clavis free?

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

### Is Surya Time free?

Surya Time costs $0.99, with no in-app purchases.

### Do Clavis or Surya Time have ads?

Neither Clavis nor Surya Time shows ads.

### Which is updated more often, Clavis or Surya Time?

Clavis ships an update every 5 days, and Surya Time every 2 days. Most recently, Clavis was updated on October 5, 2026 and Surya Time on October 22, 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.*