# Prism vs PRISM

Prism and PRISM are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Prism sells 3 in-app purchases, starting at $2.99 per month and PRISM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Prism ships an update every 2 weeks, PRISM every 3 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Prism | PRISM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 43 MB | 2 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chien-Yao Chang](https://appshunter.io/developer/1888986500) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Prism

[App page](https://appshunter.io/ios/app/prism-dual-light-puzzles/id6774577331)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Pro (Monthly) | $2.99 | per month |
| Prism Pro (Yearly) | $14.99 | per year |
| Prism Pro (Lifetime) | $29.99 | one-time |


### PRISM

[App page](https://appshunter.io/ios/app/prism-laser-logic-puzzle/id6791115421)

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Prism free?

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

### Is PRISM free?

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

### Do Prism or PRISM have ads?

Neither Prism nor PRISM shows ads.

### Which is updated more often, Prism or PRISM?

Prism ships an update every 2 weeks, and PRISM every 3 weeks. Most recently, Prism was updated on October 28, 2026 and PRISM on October 29, 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.*