# World Butterflies! vs Bug Identifier

The clearest difference is in-app purchases: World Butterflies! at none against Bug Identifier's 2. World Butterflies! also leads on iOS requirement (7.1 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Bug Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. World Butterflies! asks for nothing beyond the download.

World Butterflies! ships an update every 2 weeks, Bug Identifier every 10 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | World Butterflies! | Bug Identifier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 28 MB | 45 MB |
| Requires iOS | **7.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [hirofumi yamada](https://appshunter.io/developer/621837478) | [Samuel Ojo](https://appshunter.io/developer/1803866127) |

## What reviewers say

### World Butterflies!

[App page](https://appshunter.io/ios/app/world-butterflies/id1170263689)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bug Identifier

[App page](https://appshunter.io/ios/app/bug-identifier-insect-ids/id6748002846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Weekly | $4.99 | per 7 days |
| PRO Yearly | $24.99 | per year |


## Frequently asked questions

### Is World Butterflies! free?

World Butterflies! is free to download, with no in-app purchases.

### Is Bug Identifier free?

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

### Do World Butterflies! or Bug Identifier have ads?

Neither World Butterflies! nor Bug Identifier shows ads.

### Which is updated more often, World Butterflies! or Bug Identifier?

World Butterflies! ships an update every 2 weeks, and Bug Identifier every 10 days. Most recently, World Butterflies! was updated on October 29, 2026 and Bug Identifier on October 28, 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.*