# On/Off vs 101 Circuits

The clearest difference is in-app purchases: 101 Circuits at none against On/Off's 1. 101 Circuits also leads on update cadence (every 2 days vs every 29 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. On/Off sells 1 one-off in-app purchase. 101 Circuits asks for nothing beyond the download.

On/Off ships an update every 29 months, 101 Circuits every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | On/Off | 101 Circuits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onoff-circuit-glow-puzzle/id905723117/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 8 MB | 32 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Red Hawk Studios, LLC](https://appshunter.io/developer/1297468167) | [Chilling Moose](https://appshunter.io/developer/1595484986) |

## What reviewers say

### On/Off

[App page](https://appshunter.io/ios/app/onoff-circuit-glow-puzzle/id905723117)

This game challenges players to illuminate all squares on a grid. Clicking a square toggles its state and the state of adjacent squares, requiring strategic thinking to solve each puzzle.

**Highlights:** Grid-based puzzles, Toggle square states, Affects adjacent squares, Simple mechanics, Challenging logic

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US English | $2.99 | one-time |


### 101 Circuits

[App page](https://appshunter.io/ios/app/101-circuits/id6818058085)

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is On/Off free?

On/Off is free to download, with in-app purchases available.

### Is 101 Circuits free?

101 Circuits is free to download, with no in-app purchases.

### Do On/Off or 101 Circuits have ads?

Neither On/Off nor 101 Circuits shows ads.

### Which is updated more often, On/Off or 101 Circuits?

On/Off ships an update every 29 months, and 101 Circuits every 2 days. Most recently, On/Off was updated on November 1, 2026 and 101 Circuits on October 31, 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.*