# Insect Identifier vs Butterfly ID

The clearest difference is in-app purchases: Butterfly ID at none against Insect Identifier's 2. Butterfly ID also leads on update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Insect Identifier sells 2 in-app purchases, starting at $5.99 per 7 days. Butterfly ID asks for nothing beyond the download.

Insect Identifier ships an update every 7 months, Butterfly ID every 2 months. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Insect Identifier | Butterfly ID |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 24 MB | 37 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Ferrara](https://appshunter.io/developer/1614412867) | [Mathias Mosgaard](https://appshunter.io/developer/1875297174) |

## What reviewers say

### Insect Identifier

[App page](https://appshunter.io/ios/app/insect-identifier-bugdex/id6759280477)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $5.99 | per 7 days |
| Pro Yearly | $39.99 | per year |


### Butterfly ID

[App page](https://appshunter.io/ios/app/butterfly-id/id6783060008)

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

**In-app purchases:** none


## Frequently asked questions

### Is Insect Identifier free?

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

### Is Butterfly ID free?

Butterfly ID is free to download, with no in-app purchases.

### Do Insect Identifier or Butterfly ID have ads?

Neither Insect Identifier nor Butterfly ID shows ads.

### Which is updated more often, Insect Identifier or Butterfly ID?

Insect Identifier ships an update every 7 months, and Butterfly ID every 2 months. Most recently, Insect Identifier was updated on October 17, 2026 and Butterfly ID on October 20, 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.*