# Grass Fire vs 000 Buzzer

The clearest difference is update cadence: 000 Buzzer at every 4 months against Grass Fire's every 15 months. 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.

Grass Fire ships an update every 15 months, 000 Buzzer every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Grass Fire | 000 Buzzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/grass-fire/id1440445499/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 66 MB | 91 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [arludo Pty Ltd](https://appshunter.io/developer/1023251086) | [360 ENTERTAINMENT PTY LIMITED](https://appshunter.io/developer/433368567) |

## What reviewers say

### Grass Fire

[App page](https://appshunter.io/ios/app/grass-fire/id1440445499)

This educational app explores how the human brain interprets visual shapes. It's designed to help users understand the cognitive processes behind shape recognition and perception.

**Highlights:** Understanding shape interpretation, Cognitive process exploration, Visual perception testing, Educational content

**Features:** macOS Compatibility

**In-app purchases:** none


### 000 Buzzer

[App page](https://appshunter.io/ios/app/000-buzzer/id1469846481)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grass Fire free?

Grass Fire is free to download, with no in-app purchases.

### Is 000 Buzzer free?

000 Buzzer is free to download, with no in-app purchases.

### Do Grass Fire or 000 Buzzer have ads?

Neither Grass Fire nor 000 Buzzer shows ads.

### Which is updated more often, Grass Fire or 000 Buzzer?

Grass Fire ships an update every 15 months, and 000 Buzzer every 4 months. Most recently, Grass Fire was updated on November 2, 2026 and 000 Buzzer on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*