# nr. 01 vs Circuit Dude

The clearest difference is price: nr. 01 at Free against Circuit Dude's $2.99. nr. 01 also leads on review sentiment (80% vs 67%) and ratings volume (42 vs 13). Circuit Dude's advantage is in-app purchases (none vs 1) and update cadence (every 6 days vs monthly). On rating, ads and device support there is nothing between them.

nr. 01 is free to download; Circuit Dude costs $2.99 up front. nr. 01 sells 1 one-off in-app purchase. Circuit Dude asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for nr. 01 against 4.5 for Circuit Dude. Both are backed by a comparable volume of ratings — 42 and 13 respectively. Written reviews are what separate them: 80% of nr. 01's written reviews are positive against 67% of Circuit Dude's.

nr. 01 ships an update monthly, Circuit Dude every 6 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | nr. 01 | Circuit Dude |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.4 (42 ratings)](https://appshunter.io/ios/app/nr-01/id979154551/reviews) | **[4.5 (13 ratings)](https://appshunter.io/ios/app/circuit-dude/id1497085581/reviews)** |
| Number of ratings | **42** | 13 |
| Positive reviews | **79.5% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 16 MB | 43 MB |
| Requires iOS | **6.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Tiny Games](https://appshunter.io/developer/907446397) | [Jonathan Holmes](https://appshunter.io/developer/1497085580) |

## What reviewers say

### nr. 01

[App page](https://appshunter.io/ios/app/nr-01/id979154551)

A unique puzzle game that challenges your brain using numbers. The goal is to reduce all bubbles to 1 by switching them, but bubbles with the number 1 cannot be moved. It's easy to learn but can be incredibly challenging.

**Highlights:** Number-based bubble puzzles, Reduce all bubbles to 1, Cannot move bubbles with number 1, Challenging for all skill levels, Unique gameplay mechanics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 🤩 Very entertaining game
- 🧠 Challenging puzzles
- 💡 Simple and easy to learn
- 📈 Great learning curve
- 👍 Works well on older devices

**What reviewers complain about**

- 😠 Ads are intrusive
- 🚫 Ad banner covers game/menu
- 😵 Ads make it harder to play
- 📉 Not enough levels
- ⚠️ Buggy on iPhone 6 Plus

**Reported bugs**

- Ad banner covers game and menu
- Iphone 6 plus bug
- Game crashes repeatedly
- Crashes every 7 seconds
- Crashes immediately after startup

**Requested features**

- More levels
- Move the ads
- Fix iPhone 6 Plus bug
- More levels to play
- Fix crashing issues


### Circuit Dude

[App page](https://appshunter.io/ios/app/circuit-dude/id1497085581)

Guide a character through challenging puzzles by manipulating game elements to build a secret invention. Enjoy over 120 levels with a built-in editor to create and share your own levels.

**Highlights:** 120 Levels, 15+ Hours of Puzzles, 10 Tile Mechanics, Level Editor, Online Level Sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is nr. 01 free?

nr. 01 is free to download, with in-app purchases available.

### Is Circuit Dude free?

Circuit Dude costs $2.99, with no in-app purchases.

### Which has better reviews, nr. 01 or Circuit Dude?

Circuit Dude is rated higher. nr. 01 averages 4.4 out of 5 from 42 ratings, while Circuit Dude averages 4.5 from 13 ratings.

### Do nr. 01 or Circuit Dude have ads?

Neither nr. 01 nor Circuit Dude shows ads.

### Which is updated more often, nr. 01 or Circuit Dude?

nr. 01 ships an update monthly, and Circuit Dude every 6 days. Most recently, nr. 01 was updated on October 24, 2026 and Circuit Dude 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.*