# One Line vs Volt Block

The clearest difference is in-app purchases: One Line at none against Volt Block's 3. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Volt Block sells 3 one-off in-app purchases. One Line asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for One Line against 4.8 for Volt Block. Both are backed by a comparable volume of ratings — 180 and 152 respectively.

One Line ships an update monthly, Volt Block every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | One Line | Volt Block |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (180 ratings)](https://appshunter.io/ios/app/one-line-pattern-puzzle/id6758054179/reviews) | **[4.8 (152 ratings)](https://appshunter.io/ios/app/volt-block-city-light/id6771194091/reviews)** |
| Number of ratings | **180** | 152 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 341 MB | 210 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | +17 |
| Developer | [Gimica GmbH](https://appshunter.io/developer/1654487825) | [HK GANGXING TECHNOLOGY LIMITED](https://appshunter.io/developer/813172596) |

## What reviewers say

### One Line

[App page](https://appshunter.io/ios/app/one-line-pattern-puzzle/id6758054179)

Recreate intricate line patterns by strategically moving connected dots on a grid. This puzzle game challenges your spatial reasoning and planning skills as you match target designs. Utilize undo, reset, and hint features to navigate increasingly complex arrangements.

**Highlights:** Move connected dots on a grid, Recreate target patterns, Solve spatial puzzles, Undo and reset moves, Use in-game hints, Progress through complex designs

**Features:** macOS Compatibility

**In-app purchases:** none


### Volt Block

[App page](https://appshunter.io/ios/app/volt-block-city-light/id6771194091)

Build a futuristic metropolis by generating power and illuminating every corner. Transform a quiet town into a dazzling cyber city, enjoying the creative process at your own pace.

**Highlights:** Build futuristic cityscapes, Generate power, Illuminate city lights, City growth simulation, Casual gameplay, Creative city design

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Daily Supply | $1.99 | one-time |
| Newbie Offer | $4.99 | one-time |
| Value Stash | $9.99 | one-time |


## Frequently asked questions

### Is One Line free?

One Line is free to download, with no in-app purchases.

### Is Volt Block free?

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

### Which has better reviews, One Line or Volt Block?

Volt Block is rated higher. One Line averages 4.6 out of 5 from 180 ratings, while Volt Block averages 4.8 from 152 ratings.

### Do One Line or Volt Block have ads?

Both One Line and Volt Block show ads.

### Which is updated more often, One Line or Volt Block?

One Line ships an update monthly, and Volt Block every 3 weeks. Most recently, One Line was updated on October 31, 2026 and Volt Block on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*