# Bug Identifier vs Auto Diary

The clearest difference is in-app purchases: Auto Diary at none against Bug Identifier's 4. Auto Diary also leads on ads (none vs shown) and device support (3 vs 1). Bug Identifier's advantage is update cadence (fortnightly vs every 6 weeks). On price there is nothing between them.

Both are free to download. Bug Identifier sells 4 in-app purchases, starting at $5.99 per month. Auto Diary asks for nothing beyond the download.

Bug Identifier ships an update fortnightly, Auto Diary every 6 weeks. Both last shipped on October 15, 2026.

## The numbers

| Metric | Bug Identifier | Auto Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32 ratings)](https://appshunter.io/ios/app/bug-identifier-butterfly-id/id6717602998/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 46 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Ivanou](https://appshunter.io/developer/1591602895) | [Heebok Lee](https://appshunter.io/developer/1855773499) |

## What reviewers say

### Bug Identifier

[App page](https://appshunter.io/ios/app/bug-identifier-butterfly-id/id6717602998)

Identify any insect with a picture using a comprehensive database. Learn about their habits, habitats, and whether they are harmful. Track your discoveries on an interactive map and connect with a community of enthusiasts.

**Highlights:** Comprehensive insect identification by picture, Search by name and species, In-depth insect details (harmful/harmless, habits, habitat), Interactive map to track scanned insects, Regular database updates, Community sharing and connection

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insect Identification Month | $5.99 | per month |
| Insect Identification Month | $5.99 | per month |
| Unlimited Identifier Year | $39.99 | per year |
| Insect Identification Lifetime | $99.99 | one-time |


### Auto Diary

[App page](https://appshunter.io/ios/app/auto-diary/id6762084066)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bug Identifier free?

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

### Is Auto Diary free?

Auto Diary is free to download, with no in-app purchases.

### Do Bug Identifier or Auto Diary have ads?

Bug Identifier shows ads; Auto Diary does not.

### Which is updated more often, Bug Identifier or Auto Diary?

Bug Identifier ships an update fortnightly, and Auto Diary every 6 weeks. Most recently, Bug Identifier was updated on October 15, 2026 and Auto Diary on October 15, 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.*