# Detector CO2 vs Bug Identifier Insect Finder

The clearest difference is rating: Bug Identifier Insect Finder at 4.3 against Detector CO2's 2.0. Bug Identifier Insect Finder also leads on ratings volume (249 vs 1). Detector CO2's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Bug Identifier Insect Finder sells 3 in-app purchases, starting at $3.99 per 7 days. Detector CO2 asks for nothing beyond the download.

Bug Identifier Insect Finder holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Bug Identifier Insect Finder has 249 ratings behind it against 1, so its average is the more settled of the two.

Detector CO2 ships an update every 3 weeks, Bug Identifier Insect Finder every 3 months. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Detector CO2 | Bug Identifier Insect Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/detector-co2/id1561126616/reviews) | **[4.3 (249 ratings)](https://appshunter.io/ios/app/bug-identifier-insect-finder/id1572061671/reviews)** |
| Number of ratings | 1 | **249** |
| Positive reviews | — | 58.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 73 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geotap Games S.L.](https://appshunter.io/developer/596729068) | [Linh Nguyen Mai](https://appshunter.io/developer/1647530452) |

## What reviewers say

### Detector CO2

[App page](https://appshunter.io/ios/app/detector-co2/id1561126616)

Measure ambient CO2 levels using a compatible device. This utility app provides environmental data for your surroundings.

**Highlights:** Measure CO2 levels, Utilizes device capabilities, Environmental data display

**Features:** macOS Compatibility

**In-app purchases:** none


### Bug Identifier Insect Finder

[App page](https://appshunter.io/ios/app/bug-identifier-insect-finder/id1572061671)

Instantly identify insects, bugs, and butterflies by simply taking or uploading a photo. This app uses AI to provide accurate results and allows you to track your identified species in a personal collection.

**Highlights:** Instant bug identification from photo, AI-powered identification technology, High-quality global insect database, Personal collection tracking, Identify anywhere, anytime, Intuitive interface with tips

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $39.99 | per year |

**What reviewers like**

- ✅ Accurate identification (sometimes)
- 👍 Easy to use (for some)
- 💡 Educational and interesting
- 🚀 Works in remote areas
- ✨ Helps with OCD (specific case)

**What reviewers complain about**

- ❌ Not free / Subscription required
- ❌ Inaccurate identification
- ❌ Difficult to get good pictures
- ❌ App crashes or closes
- ❌ Premium version is pricey

**Reported bugs**

- App closes when 'X' is pressed
- Camera only works in portrait mode
- Fails to recognize specimens
- App stops working after a few days
- Error when trying to get a picture

**Requested features**

- Provide common names instead of Latin
- Improve community interaction features
- Allow personal photos instead of Wikipedia


## Frequently asked questions

### Is Detector CO2 free?

Detector CO2 is free to download, with no in-app purchases.

### Is Bug Identifier Insect Finder free?

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

### Which has better reviews, Detector CO2 or Bug Identifier Insect Finder?

Bug Identifier Insect Finder is rated higher. Detector CO2 averages 2.0 out of 5 from 1 ratings, while Bug Identifier Insect Finder averages 4.3 from 249 ratings.

### Do Detector CO2 or Bug Identifier Insect Finder have ads?

Bug Identifier Insect Finder shows ads; Detector CO2 does not.

### Which is updated more often, Detector CO2 or Bug Identifier Insect Finder?

Detector CO2 ships an update every 3 weeks, and Bug Identifier Insect Finder every 3 months. Most recently, Detector CO2 was updated on October 15, 2026 and Bug Identifier Insect Finder 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.*