# Leap Year Test vs Sun Map Clock

The clearest difference is in-app purchases: Leap Year Test at none against Sun Map Clock's 2. Leap Year Test also leads on iOS requirement (11.0 vs 15.0). Sun Map Clock's advantage is update cadence (every 2 weeks vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Sun Map Clock sells 2 in-app purchases, starting at $15.00 per month. Leap Year Test asks for nothing beyond the download.

Leap Year Test ships an update every 13 months, Sun Map Clock every 2 weeks. The most recent releases landed on September 22, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Leap Year Test | Sun Map Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Size | 11 MB | 64 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan-Hendrik von Kuick](https://appshunter.io/developer/1190145903) | [QAEE CONPUUTENG](https://appshunter.io/developer/1853582855) |

## What reviewers say

### Leap Year Test

[App page](https://appshunter.io/ios/app/leap-year-test/id1371327368)

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

**In-app purchases:** none


### Sun Map Clock

[App page](https://appshunter.io/ios/app/sun-map-clock-shadow-tracker/id6765796926)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $15.00 | per month |
| Yearly Subscription | $150.00 | per year |


## Frequently asked questions

### Is Leap Year Test free?

Leap Year Test is free to download, with no in-app purchases.

### Is Sun Map Clock free?

Sun Map Clock is free to download, with in-app purchases available.

### Do Leap Year Test or Sun Map Clock have ads?

Neither Leap Year Test nor Sun Map Clock shows ads.

### Which is updated more often, Leap Year Test or Sun Map Clock?

Leap Year Test ships an update every 13 months, and Sun Map Clock every 2 weeks. Most recently, Leap Year Test was updated on September 22, 2026 and Sun Map Clock on September 29, 2026.

---

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