# Light Rim vs Modstack

The clearest difference is ads: Modstack at none against Light Rim's shown. Modstack also leads on update cadence (every 8 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Light Rim sells 5 one-off in-app purchases and Modstack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Light Rim ships an update every 6 weeks, Modstack every 8 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Light Rim | Modstack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Size | 127 MB | 30 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Calm Game Studio](https://appshunter.io/developer/1650561947) | [NovoBuild LLC](https://appshunter.io/developer/1784126512) |

## What reviewers say

### Light Rim

[App page](https://appshunter.io/ios/app/light-rim/id6791810776)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beginner Gift | $0.99 | one-time |
| Coins 500 | $4.99 | one-time |
| Best Offer | $9.99 | one-time |
| Coins 1300 | $12.99 | one-time |
| Mega Bundle | $99.99 | one-time |


### Modstack

[App page](https://appshunter.io/ios/app/modstack-programming-puzzle/id6803866356)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Modstack | $3.99 | one-time |


## Frequently asked questions

### Is Light Rim free?

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

### Is Modstack free?

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

### Do Light Rim or Modstack have ads?

Light Rim shows ads; Modstack does not.

### Which is updated more often, Light Rim or Modstack?

Light Rim ships an update every 6 weeks, and Modstack every 8 days. Most recently, Light Rim was updated on October 8, 2026 and Modstack on October 10, 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.*