# Double View vs zero numbers. brain/math games

The clearest difference is rating: zero numbers. brain/math games at 5.0 against Double View's 4.5. zero numbers. brain/math games also leads on in-app purchases (none vs 2) and update cadence (every 2 days vs every 4 months). Double View's advantage is ads (none vs shown) and ratings volume (6 vs 2). On price and device support there is nothing between them.

Both are free to download. Double View sells 2 one-off in-app purchases. zero numbers. brain/math games asks for nothing beyond the download.

zero numbers. brain/math games holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 55% of Double View's written reviews are positive against 75% of zero numbers. brain/math games's.

Double View ships an update every 4 months, zero numbers. brain/math games every 2 days. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Double View | zero numbers. brain/math games |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/double-view-the-impossible-puzzle-game/id660847060/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zero-numbers-brainmath-games/id1662339712/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 54.5% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 42 MB | 63 MB |
| Requires iOS | **6.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) | [MINERVA K.K.](https://appshunter.io/developer/1597905460) |

## What reviewers say

### Double View

[App page](https://appshunter.io/ios/app/double-view-the-impossible-puzzle-game/id660847060)

Control two squares simultaneously across different screen layouts, navigating obstacles and reaching the finish line. This unique puzzle game challenges your concentration and motor skills with addictive gameplay and retro graphics.

**Highlights:** Dual screen control, Obstacle avoidance, Key and portal mechanics, Addictive gameplay, Retro graphics

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 hints | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


### zero numbers. brain/math games

[App page](https://appshunter.io/ios/app/zero-numbers-brainmath-games/id1662339712)

This challenging puzzle game enhances math skills and cognitive abilities through unique number-combining mechanics. It features 19 levels designed to improve memory, focus, and logical thinking for adults who enjoy complex problems.

**Highlights:** Improves brain function, Educational puzzle, Trains concentration, Boosts IQ, Develops mathematical thinking, Offline play available

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

**In-app purchases:** none


## Frequently asked questions

### Is Double View free?

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

### Is zero numbers. brain/math games free?

zero numbers. brain/math games is free to download, with no in-app purchases.

### Which has better reviews, Double View or zero numbers. brain/math games?

zero numbers. brain/math games is rated higher. Double View averages 4.5 out of 5 from 6 ratings, while zero numbers. brain/math games averages 5.0 from 2 ratings.

### Do Double View or zero numbers. brain/math games have ads?

zero numbers. brain/math games shows ads; Double View does not.

### Which is updated more often, Double View or zero numbers. brain/math games?

Double View ships an update every 4 months, and zero numbers. brain/math games every 2 days. Most recently, Double View was updated on June 1, 2026 and zero numbers. brain/math games on September 21, 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.*