# nr. 01 vs Black Hole

The clearest difference is rating: Black Hole at 5.0 against nr. 01's 4.4. Black Hole also leads on review sentiment (100% vs 80%). nr. 01's advantage is ratings volume (42 vs 1) and iOS requirement (6.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. nr. 01 sells 1 one-off in-app purchase and Black Hole sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Black Hole holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: nr. 01 has 42 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of nr. 01's written reviews are positive against 100% of Black Hole's.

nr. 01 ships an update monthly, Black Hole every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | nr. 01 | Black Hole |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (42 ratings)](https://appshunter.io/ios/app/nr-01/id979154551/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/black-hole-strategy/id1531941939/reviews)** |
| Number of ratings | **42** | 1 |
| Positive reviews | 79.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 6 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tiny Games](https://appshunter.io/developer/907446397) | [Theodor Ungureanu](https://appshunter.io/developer/1531941941) |

## 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


### Black Hole

[App page](https://appshunter.io/ios/app/black-hole-strategy/id1531941939)

A strategic multiplayer puzzle game where players place numbered tiles on a board. The goal is to have the lowest sum of tile values surrounding the final empty space, the 'black hole'. Play against friends or AI.

**Highlights:** Multiplayer and AI modes, Tile placement strategy, Ascending tile numbering, Lowest score wins, Simple gameplay mechanics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is nr. 01 free?

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

### Is Black Hole free?

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

### Which has better reviews, nr. 01 or Black Hole?

Black Hole is rated higher. nr. 01 averages 4.4 out of 5 from 42 ratings, while Black Hole averages 5.0 from 1 ratings.

### Do nr. 01 or Black Hole have ads?

Neither nr. 01 nor Black Hole shows ads.

### Which is updated more often, nr. 01 or Black Hole?

nr. 01 ships an update monthly, and Black Hole every 2 months. Most recently, nr. 01 was updated on November 6, 2026 and Black Hole on November 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.*