# Radiant Grid vs Substrate Entity

The clearest difference is price: Substrate Entity at Free against Radiant Grid's $1.99. Substrate Entity also leads on update cadence (every 3 days vs every 6 months). Radiant Grid's advantage is device support (3 vs 1) and iOS requirement (18.6 vs 26.0). On ads and in-app purchases there is nothing between them.

Substrate Entity is free to download; Radiant Grid costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Radiant Grid ships an update every 6 months, Substrate Entity every 3 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Radiant Grid | Substrate Entity |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.2 (15 ratings)](https://appshunter.io/ios/app/radiant-grid/id1067853503/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 53 MB | 11 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Open Planet Software](https://appshunter.io/developer/307887935) | [DRO1D LABS LIMITED](https://appshunter.io/developer/1803083780) |

## What reviewers say

### Radiant Grid

[App page](https://appshunter.io/ios/app/radiant-grid/id1067853503)

A calming puzzle game featuring 99 handcrafted levels with increasing difficulty. Players tap squares to light a path across a grid, following number clues to solve each challenge. Enjoy a soothing soundtrack and a beautiful, minimalist design.

**Highlights:** 99 challenging handcrafted levels, Mindful and relaxing gameplay, Ambient soundtrack, Simple tap controls, Increasing difficulty curve

**Features:** Vision Pro support

**In-app purchases:** none


### Substrate Entity

[App page](https://appshunter.io/ios/app/substrate-entity/id6757655237)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Radiant Grid free?

Radiant Grid costs $1.99, with no in-app purchases.

### Is Substrate Entity free?

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

### Do Radiant Grid or Substrate Entity have ads?

Neither Radiant Grid nor Substrate Entity shows ads.

### Which is updated more often, Radiant Grid or Substrate Entity?

Radiant Grid ships an update every 6 months, and Substrate Entity every 3 days. Most recently, Radiant Grid was updated on October 1, 2026 and Substrate Entity on October 3, 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.*