# Differences vs One Line

The clearest difference is update cadence: Differences at every 6 weeks against One Line's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Differences sells 1 one-off in-app purchase and One Line sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Differences ships an update every 6 weeks, One Line every 4 months. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Differences | One Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (84 ratings)](https://appshunter.io/ios/app/differences-found-and-spot-it/id6446196945/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 147 MB | 71 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [1LIFE](https://appshunter.io/developer/642917436) | [Jayendrasinh Chudasama](https://appshunter.io/developer/1720379683) |

## What reviewers say

### Differences

[App page](https://appshunter.io/ios/app/differences-found-and-spot-it/id6446196945)

This puzzle game challenges your observation skills by requiring you to find 10 differences between two similar images. It's designed to improve memory, reduce stress, and boost concentration without a time limit, making it suitable for all ages.

**Highlights:** Find 10 differences in pictures, Develops observation and visual thinking, Improves memory and concentration, No time limit, Suitable for all ages, Hints and zoom function, Offline play

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### One Line

[App page](https://appshunter.io/ios/app/one-line-one-touch-puzzle/id6504471406)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hints | $0.99 | one-time |
| 50 Hints | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| 100 Hints | $2.99 | one-time |


## Frequently asked questions

### Is Differences free?

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

### Is One Line free?

One Line is free to download, with in-app purchases available.

### Do Differences or One Line have ads?

Both Differences and One Line show ads.

### Which is updated more often, Differences or One Line?

Differences ships an update every 6 weeks, and One Line every 4 months. Most recently, Differences was updated on October 24, 2026 and One Line 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.*