# Periscope Watchkeeper vs Bug Identifier

The clearest difference is review sentiment: Periscope Watchkeeper at 100% against Bug Identifier's 20%. Periscope Watchkeeper also leads on in-app purchases (none vs 10) and iOS requirement (12.0 vs 14.0). Bug Identifier's advantage is price (Free vs $14.99) and update cadence (every 4 weeks vs every 19 months). On ads and device support there is nothing between them.

Bug Identifier is free to download; Periscope Watchkeeper costs $14.99 up front. Bug Identifier sells 10 in-app purchases, starting at $7.99 per month. Periscope Watchkeeper asks for nothing beyond the download.

Periscope Watchkeeper ships an update every 19 months, Bug Identifier every 4 weeks. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Periscope Watchkeeper | Bug Identifier |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | — | **[4.3 (8.9K ratings)](https://appshunter.io/ios/app/bug-identifier-ai-insect-id/id1588031278/reviews)** |
| Number of ratings | — | **8.9K** |
| Positive reviews | **100.0% of reviews** | 20.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 4 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 131 MB | 178 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dzeba Systems](https://appshunter.io/developer/1517190817) | [Picture & Photo Identifier Company LTD](https://appshunter.io/developer/1710356675) |

## What reviewers say

### Periscope Watchkeeper

[App page](https://appshunter.io/ios/app/periscope-watchkeeper/id1517198191)

Train your "eyes only" submarine periscope skills with this educational application. It offers various target types, difficulty levels, and guided tutorials to help users refine their observational abilities.

**Highlights:** Multiple target types, Adjustable difficulty levels, Passive Range and Look Interval mode, Night mode, Distance Of Track calculations, Duration Of Attack calculations, Guided tutorials

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

**In-app purchases:** none


### Bug Identifier

[App page](https://appshunter.io/ios/app/bug-identifier-ai-insect-id/id1588031278)

Instantly identify insects and spiders by taking or uploading a photo. Access a vast database with detailed information, track your discoveries, and learn about potential dangers or care for insect pets. Offers premium features like an AI chat assistant and ad-free experience.

**Highlights:** Instant AI recognition of over 14,000 species, Detailed information on identified insects, Personal insect collection builder, Poison and bite identification, Pest management and pet care information, AI chat assistant (premium)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Identification 1 Month Premium | $7.99 | per month |
| Identification 1 Week Premium | $7.99 | per 7 days |
| Identification 1 Week Premium | $7.99 | per 7 days |
| Identification 1 Year Premium | $24.99 | per year |
| Identification 1 Year Premium | $24.99 | per year |
| Identification 1 Year Premium | $29.99 | per year |
| Identification 1 Year Premium | $29.99 | per year |
| 1 Year Premium | $29.99 | per year |
| Identification 1 Year Premium | $39.99 | per year |
| Identification 1 Year Premium | $39.99 | per year |

**What reviewers like**

- 🚀 Quick identification
- 👍 Helpful expert support
- 🔍 Accurate insect detection

**What reviewers complain about**

- 💰 Expensive subscription
- 🔒 Difficult cancellation process
- 🤔 Inconsistent identification results
- 🚫 Paywall for basic features

**Reported bugs**

- App crashes on launch
- Scanning process gets stuck at 98%
- Inability to forward identified insect photos

**Requested features**

- Free trial for full app functionality
- Option to save identified insects
- Integration with other nature apps


## Frequently asked questions

### Is Periscope Watchkeeper free?

Periscope Watchkeeper costs $14.99, with no in-app purchases.

### Is Bug Identifier free?

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

### Do Periscope Watchkeeper or Bug Identifier have ads?

Neither Periscope Watchkeeper nor Bug Identifier shows ads.

### Which is updated more often, Periscope Watchkeeper or Bug Identifier?

Periscope Watchkeeper ships an update every 19 months, and Bug Identifier every 4 weeks. Most recently, Periscope Watchkeeper was updated on November 3, 2026 and Bug Identifier on November 12, 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.*