# Periscope Watchkeeper

> Submarine periscope training application for "eyes only" skills. (iPhone/iPad app by Dzeba Systems.)

- Source: https://appshunter.io/ios/app/periscope-watchkeeper/id1517198191 (this page in markdown: same URL + `.md`)
- Developer: [Dzeba Systems](https://appshunter.io/developer/1517190817)
- Category: Education, Games, Simulation
- Price: $14.99
- Age rating: 4+
- Requires: iOS 12.0 · 131 MB
- Languages: American English
- Released: 2020-09-27
- Data updated: 2026-09-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/periscope-watchkeeper/id1517198191/reviews.md

## What is Periscope Watchkeeper?

The only publicly available submarine periscope training application focused on "eyes only" skills. Suitable for new submariners or those refining their skills. Features:

- Seven target types: Arleigh Burke, Zumwalt, QM2, Daring class, Sigma, 052D, and Gorshkov
- Four difficulty levels for the ATB / AOB game mode
- Up to three targets for the Passive Range and Look Interval mode
- Night mode
- Distance Of Track calculations
- Duration Of Attack calculations
- Guided tutorials for every game mode and configuration

Any feedback, customisation requests, bug reports or general comments are all welcome.

## Key features

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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/periscope-watchkeeper/id1517198191/reviews.md

### 5/5 — Great

*2024-10-11*

Would be nice to see a mode with no time to look to allow new watch keepers to understand and practice the maths.

### 5/5 — Nearly perfect!

*2023-07-16*

Great training for junior watch keepers!! Would love to see more variety in ship speeds and GD ranges to make the look intervals harder/more realistic. Awesome work.

**Developer response:** Thank you for the review and feedback. The latest version provides options for ship speeds and GD ranges.

## Frequently asked questions about Periscope Watchkeeper

### What is Periscope Watchkeeper?

Periscope Watchkeeper is a simulation application designed to train users in "eyes only" submarine periscope skills. It offers various modes and target types for realistic practice.

### What submarine periscope skills does Periscope Watchkeeper teach?

Periscope Watchkeeper focuses on observational skills, including target identification, distance calculations, and attack duration estimations, all through a "eyes only" approach.

### What types of targets are available in Periscope Watchkeeper?

The application features seven target types: Arleigh Burke, Zumwalt, QM2, Daring class, Sigma, 052D, and Gorshkov, allowing for diverse training scenarios.

### Does Periscope Watchkeeper offer different difficulty levels?

Yes, Periscope Watchkeeper includes four difficulty levels for its ATB / AOB game mode, catering to users of varying skill levels.

### How does Periscope Watchkeeper help users learn?

The app provides guided tutorials for every game mode and configuration, ensuring users can understand and effectively utilize all its features.

### What devices is Periscope Watchkeeper compatible with?

Periscope Watchkeeper is available for iPhone, iPad, and iPod devices, offering accessibility across multiple Apple platforms.

### How often is Periscope Watchkeeper updated?

The latest version of Periscope Watchkeeper is 2.6, and it was last updated on December 3, 2023. Updates aim to improve functionality and address user feedback.

### What is the price of Periscope Watchkeeper?

Periscope Watchkeeper is a paid application, available for $14.99. This one-time purchase grants access to all its training features.

## Version history (last 3 releases)

### 2.6 — 2023-12-03

- Three new targets: 052D, Sigma, and Gorshkov.
- Clear controls of the Look Interval model parameters: target speed, Go Deep Circle, and Minimum Look Interval.
- Minor bug fixes.

### 2.0 — 2023-03-14

- Passive Ranging and look interval game mode
- Additional tutorial
- Minor bug fixes and improvements

### 1.0 — 2020-09-27

No release notes.

## Apps similar to Periscope Watchkeeper

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Master-Nav](https://appshunter.io/ios/app/master-nav/id1602390396) | 4.7 (94) | $1.99 | Education |
| [Mushroom ID: Forage Identifier](https://appshunter.io/ios/app/mushroom-id-forage-identifier/id6476885414) | 4.4 (492) | Free | Education |
| [Math games for kids+](https://appshunter.io/ios/app/math-games-for-kids-plus/id422125323) | 4.5 (3,338) | Free | Education |
| [geotrainer: Geography Map Quiz](https://appshunter.io/ios/app/geotrainer-geography-map-quiz/id527868789) | 4.8 (4,612) | Free | Education |
| [Bug Identifier: AI Insect id](https://appshunter.io/ios/app/bug-identifier-ai-insect-id/id1588031278) | 4.3 (8,770) | Free | Education |
| [Quiz AI: AI Homework Helper](https://appshunter.io/ios/app/quiz-ai-ai-homework-helper/id6444201819) | 4.9 (11,091) | Free | Education |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-22.*