# Function vs Bug Identifier

The clearest difference is in-app purchases: Function at none against Bug Identifier's 2. Function also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Bug Identifier sells 2 in-app purchases, starting at $7.99 per 7 days. Function asks for nothing beyond the download.

Function ships an update every 3 days, Bug Identifier fortnightly. The most recent releases landed on September 12, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Function | Bug Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bug-identifier-bugscope/id6747419949/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Freemium |
| Size | 15 MB | 71 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kolej Technologies, Inc.](https://appshunter.io/developer/1627788805) | [Nadiia Martyniuk](https://appshunter.io/developer/1757187452) |

## What reviewers say

### Function

[App page](https://appshunter.io/ios/app/function/id6450653686)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bug Identifier

[App page](https://appshunter.io/ios/app/bug-identifier-bugscope/id6747419949)

Instantly identify beetles from a photo with AI. Discover if a beetle is toxic, safe to touch, or threatened. Explore a live map of sightings and learn about conservation efforts.

**Highlights:** Instant beetle identification from photos, Toxicity and safety insights, Live beetle activity map, Threatened species watchlist, AI beetle expert assistant, Personal beetle collection

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Function free?

Function 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 Function or Bug Identifier have ads?

Neither Function nor Bug Identifier shows ads.

### Which is updated more often, Function or Bug Identifier?

Function ships an update every 3 days, and Bug Identifier fortnightly. Most recently, Function was updated on September 12, 2026 and Bug Identifier on September 11, 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.*