# Flicker Chess 3D vs Block Gap Builder

The clearest difference is update cadence: Block Gap Builder at every 4 days against Flicker Chess 3D's every 10 days. Flicker Chess 3D's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flicker Chess 3D ships an update every 10 days, Block Gap Builder every 4 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Flicker Chess 3D | Block Gap Builder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Size | 115 MB | 127 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TRUNG NGUYEN HIEU](https://appshunter.io/developer/1895117328) | [Servet Taha ERGUN](https://appshunter.io/developer/6805811674) |

## What reviewers say

### Flicker Chess 3D

[App page](https://appshunter.io/ios/app/flicker-chess-3d/id6764463847)

**Features:** macOS Compatibility

**In-app purchases:** none


### Block Gap Builder

[App page](https://appshunter.io/ios/app/block-gap-builder/id6806924220)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flicker Chess 3D free?

Flicker Chess 3D is free to download, with no in-app purchases.

### Is Block Gap Builder free?

Block Gap Builder is free to download, with no in-app purchases.

### Do Flicker Chess 3D or Block Gap Builder have ads?

Neither Flicker Chess 3D nor Block Gap Builder shows ads.

### Which is updated more often, Flicker Chess 3D or Block Gap Builder?

Flicker Chess 3D ships an update every 10 days, and Block Gap Builder every 4 days. Most recently, Flicker Chess 3D was updated on October 25, 2026 and Block Gap Builder on October 29, 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.*