# Diving Buddy Lite - Scuba Pre-Dive Check Aid

> Scuba diving pre-dive check aid with calculators and reference material. (iPhone/iPad app by Harry Richardson.)

- Source: https://appshunter.io/ios/app/diving-buddy-lite-scuba-pre-dive-check-aid/id878118644 (this page in markdown: same URL + `.md`)
- Developer: [Harry Richardson](https://appshunter.io/developer/682912217)
- Category: Sports, Reference
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 7 MB
- Languages: American English
- Released: 2014-06-11
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/diving-buddy-lite-scuba-pre-dive-check-aid/id878118644/reviews.md

## What is Diving Buddy Lite?

Diving Buddy is an app for divers of all skill levels. It contains advanced calculators along with useful reference material that will be useful for any pre-dive check. 

This is the lite version of Diving Buddy. All the references and guides are available, and some of the calculators - the other calculators are available as In-App Purchases. 

CALCULATORS:

- Calculate how long you can dive for
- Calculate oxygen toxicity levels when diving with nitrox
- Maximum Operating Depth based on nitrox and partial pressure of oxygen.
- Calculate the MINIMUM gas required to make your ascent safely
- Calculate how much weight you need to add or take off based on the suit you are wearing and the water you are diving in
- Calculate the weight of air in a cylinder
- Calculate how much air will be in two cylinders after they have been balanced
- Calculate how many calories you are burning when you are diving

REFERENCE MATERIAL:

- Diving safely
- Leading a dive
- Diving before or after flying (altitude differences)
- Beaufort scale quick-guide

DIVING BUDDY is an intricate app made by master divers with decades of experience.

OTHER FEATURES:

- UNIT CONVERSIONS
- Favourite calculations
- Recent calculations

## Key features

- Pre-dive check assistance
- Advanced dive calculators
- Oxygen toxicity calculation
- Minimum gas ascent calculation
- Weight adjustment calculator
- Diving safety references
- Unit conversions

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calculator - Balancing Air Between Cylinders | $1.99 | one-time |
| Calculator - Minimum Cylinder Pressure for Ascent | $1.99 | one-time |
| Calculator - Oxygen Toxicity | $1.99 | one-time |
| Calculator - Run Time | $1.99 | one-time |
| Calculator - Weight Required | $1.99 | one-time |
| Unlock All Calculators | $6.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/diving-buddy-lite-scuba-pre-dive-check-aid/id878118644/reviews.md

### 5/5 — Useful app

*2016-05-14, version 1.51*

The calculators are really useful and work well. The reference material is also really great (useful when I change my cylinder size and had to get my weighting right)

### 5/5 — Calculator's really useful!

*2015-04-12, version 1.4*

Great app, calculators really useful!

### 4/5 — Good resource for divers

*2014-11-21*

Thank you for this app.

### 3/5 — Cute but

*2014-06-25*

But not so useful i think 
But it's very nice app with cool graphics 
Great job!

## Frequently asked questions about Diving Buddy Lite

### What is Diving Buddy Lite?

Diving Buddy Lite is a mobile application designed to help scuba divers with their pre-dive checks. It provides essential reference material and several advanced calculators to ensure safe dives.

### What calculators are included in Diving Buddy Lite?

The free version includes calculators for dive duration, oxygen toxicity, maximum operating depth, minimum ascent gas, weight adjustment, cylinder air weight, balanced cylinders, and calorie burn.

### Can I access all calculators in Diving Buddy Lite?

No, this is the lite version. While all reference materials and some calculators are free, other advanced calculators are available as in-app purchases.

### What reference material is available in Diving Buddy Lite?

The app offers reference material on diving safely, leading a dive, diving before or after flying (altitude differences), and a Beaufort scale quick-guide.

### Is Diving Buddy Lite available on Android devices?

Based on the provided data, Diving Buddy Lite is supported on iPhone and iPod devices. Information regarding Android compatibility is not available.

### How often is Diving Buddy Lite updated?

The latest version of Diving Buddy Lite is 1.51, which was last updated on September 22, 2015. This indicates infrequent updates in recent years.

### What is the user rating for Diving Buddy Lite?

Diving Buddy Lite has a rating of 4.0 stars from 1 rating. This limited feedback suggests user satisfaction but lacks broad data.

### What is the age rating for Diving Buddy Lite?

Diving Buddy Lite has an age rating of 4+, making it suitable for a wide range of users interested in diving.

## Version history (last 4 releases)

### 1.51 — 2015-09-22

This app has been updated by Apple to display the Apple Watch app icon.

- Fixed a bug caused by adding multiple Oxygen Toxicity dives

### 1.5 — 2015-09-08

- Bug fixes
- Re-arranged the home screen so everything is visible from launch
- Dropped iOS 6 to use some better features of iOS 7 and 8

### 1.4 — 2014-09-22

- Added the 'Calories Consumed' calculator, allowing you to see how many calories you've burned in any given dive!
- Bug fixes

### 1.3 — 2014-06-10

No release notes.

## More apps by Harry Richardson

- [Intimacy - Can 36 Questions Make You Fall In Love With Anyone?](https://appshunter.io/ios/app/intimacy-can-36-questions-make-you-fall-in-love-with-anyone/id959304096)

All apps by Harry Richardson: https://appshunter.io/developer/682912217

---

*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 2026-06-10.*