# Know Brainer vs Iron Logic

The clearest difference is in-app purchases: Know Brainer at none against Iron Logic's 1. Iron Logic's advantage is update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Iron Logic sells 1 one-off in-app purchase. Know Brainer asks for nothing beyond the download.

Know Brainer ships an update every 3 weeks, Iron Logic weekly. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Know Brainer | Iron Logic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iron-logic/id6505078512/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 92 MB | 169 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ritori](https://appshunter.io/developer/975033206) | [Sunspear Software LLC](https://appshunter.io/developer/1478643604) |

## What reviewers say

### Know Brainer

[App page](https://appshunter.io/ios/app/know-brainer/id954165627)

Explore fascinating science facts and distinguish truth from fiction. Engage in challenges, discover surprising facts, and compete with others to become the smartest player. This addictive and free game offers a fresh perspective on the world.

**Highlights:** Mind-blowing science facts, Distinguish fact from fiction, Surprising discoveries, Challenge fellow players, Free to play, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Iron Logic

[App page](https://appshunter.io/ios/app/iron-logic/id6505078512)

A minimalist puzzle game where you strategically combine identical objects on a timed platform. Clear the board by making sets of three before time runs out, offering a blend of quick thinking and planning.

**Highlights:** Metallic minimalist design, Object management platform, Capsule for holding objects, Combine three identical objects, Timed levels, Clear the platform objective

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lives +1000 | $0.99 | one-time |


## Frequently asked questions

### Is Know Brainer free?

Know Brainer is free to download, with no in-app purchases.

### Is Iron Logic free?

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

### Do Know Brainer or Iron Logic have ads?

Neither Know Brainer nor Iron Logic shows ads.

### Which is updated more often, Know Brainer or Iron Logic?

Know Brainer ships an update every 3 weeks, and Iron Logic weekly. Most recently, Know Brainer was updated on October 13, 2026 and Iron Logic on October 18, 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.*