# Fill vs DualSide

The clearest difference is update cadence: Fill at every 6 days against DualSide's every 3 weeks. Fill also leads on iOS requirement (12.0 vs 15.6). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Fill against 5.0 for DualSide. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Fill ships an update every 6 days, DualSide every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fill | DualSide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/fill-maze-game/id6593692385/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/dualside/id6759185432/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 108 MB | 65 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Nemecek](https://appshunter.io/developer/1466553925) | [Vikas Pawar](https://appshunter.io/developer/1588876306) |

## What reviewers say

### Fill

[App page](https://appshunter.io/ios/app/fill-maze-game/id6593692385)

Navigate a minimalist maze by swiping a square to fill every empty block. Once all blocks are filled, a portal opens to the next challenging level. This abstract puzzle game offers a calming yet mentally stimulating experience for players who enjoy elegant design and strategic gameplay.

**Highlights:** Fill all empty blocks, Swipe-based controls, Intricate levels, Minimalist design, Portal to next level, Problem-solving challenges

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### DualSide

[App page](https://appshunter.io/ios/app/dualside/id6759185432)

A fast-paced reaction game focused on timing and precision. Flip your paddle to match colors and keep the rally going. Compete with friends and climb global leaderboards in this skill-based, minimalist experience.

**Highlights:** One-tap paddle flipping, Endless rally gameplay, Global leaderboard competition, Head-to-head challenges, Seamless iCloud sync, Minimalist design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Fill free?

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

### Is DualSide free?

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

### Which has better reviews, Fill or DualSide?

Fill and DualSide are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Fill or DualSide have ads?

Both Fill and DualSide show ads.

### Which is updated more often, Fill or DualSide?

Fill ships an update every 6 days, and DualSide every 3 weeks. Most recently, Fill was updated on November 4, 2026 and DualSide on October 31, 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.*