# Prism vs Sunshine D3

The clearest difference is in-app purchases: Sunshine D3 at none against Prism's 1. Sunshine D3 also leads on iOS requirement (15.0 vs 26.0). Prism's advantage is ads (none vs shown) and update cadence (every 11 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Prism sells 1 in-app purchase, starting at $1.99 per month. Sunshine D3 asks for nothing beyond the download.

Prism ships an update every 11 days, Sunshine D3 every 2 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Prism | Sunshine D3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 2 months |
| Size | 3 MB | 9 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [剑炜 陈](https://appshunter.io/developer/1868267178) | [Ihsan Gercelman](https://appshunter.io/developer/1895469057) |

## What reviewers say

### Prism

[App page](https://appshunter.io/ios/app/prism-sunlight-tracker/id6758259341)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Premium (Monthly) | $1.99 | per month |


### Sunshine D3

[App page](https://appshunter.io/ios/app/sunshine-d3/id6766470179)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prism free?

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

### Is Sunshine D3 free?

Sunshine D3 is free to download, with no in-app purchases.

### Do Prism or Sunshine D3 have ads?

Sunshine D3 shows ads; Prism does not.

### Which is updated more often, Prism or Sunshine D3?

Prism ships an update every 11 days, and Sunshine D3 every 2 months. Most recently, Prism was updated on October 11, 2026 and Sunshine D3 on October 24, 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.*