# Dive Plan vs Nitrox Buddy

The clearest difference is review sentiment: Nitrox Buddy at 96% against Dive Plan's 38%. Nitrox Buddy also leads on rating (4.9 vs 1.8) and ratings volume (468 vs 8). Dive Plan's advantage is update cadence (every 2 months vs every 7 months) and iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Dive Plan sells 4 in-app purchases, starting at $2.99 per month and Nitrox Buddy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Nitrox Buddy holds the better App Store score, 4.9 against 1.8. That said, the two scores are not equally well evidenced: Nitrox Buddy has 468 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 38% of Dive Plan's written reviews are positive against 96% of Nitrox Buddy's.

Dive Plan ships an update every 2 months, Nitrox Buddy every 7 months. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Dive Plan | Nitrox Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (8 ratings)](https://appshunter.io/ios/app/dive-plan/id496279549/reviews) | **[4.9 (468 ratings)](https://appshunter.io/ios/app/nitrox-buddy/id572411073/reviews)** |
| Number of ratings | 8 | **468** |
| Positive reviews | 37.9% of reviews | **95.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 6 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [AXIS Productions](https://appshunter.io/developer/472646203) | [Gereon Steffens](https://appshunter.io/developer/493030228) |

## What reviewers say

### Dive Plan

[App page](https://appshunter.io/ios/app/dive-plan/id496279549)

This app serves as a digital decompression table and logbook for divers. It helps calculate non-stop dive times and log dives, compatible with major diving organizations' tables. It supports both air and enriched air (nitrox) tanks.

**Highlights:** Digital decompression tables, Dive logbook, Compatibility with major diving organizations, Supports air and nitrox tanks, Practice for dive certification exams, General dive planning guide

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dive Plan Pro - Monthly | $2.99 | per month |
| Dive Plan Pro - Annual | $17.99 | per year |
| Nitrox EANX Mode | $2.99 | one-time |
| Dive Plan Pro Lifetime | $69.99 | one-time |


### Nitrox Buddy

[App page](https://appshunter.io/ios/app/nitrox-buddy/id572411073)

This application serves as a straightforward calculator for nitrox and enriched air divers. It quickly computes essential dive data such as Maximum Operating Depth (MOD), Equivalent Air Depth (EAD), Best Mix, and Partial Pressure of Oxygen (PPO2). It supports both imperial and metric units and offers a companion watch app for on-the-go calculations.

**Highlights:** Calculate MOD, EAD, Best Mix, PPO2, Imperial and metric unit support, Sea and fresh water options, Selectable max oxygen content, Selectable max partial pressure, Companion watch app

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick calculations
- ✅ Accurate results
- 💡 Free to use
- 🎯 Essential for Nitrox divers

**What reviewers complain about**

- 📱 Ugly iPad icon
- ⚠️ MOD calculation limited to 40% O2 in older versions
- ⚠️ MOD calculation limited to 50% O2 in older versions
- ⚠️ Needs to work with older iOS versions

**Reported bugs**

- iPad icon is ugly
- MOD limit of 50% O2 despite 100% O2 setting (resolved)
- MOD limit of 40% O2 (older version)
- Does not work with older iOS versions

**Requested features**

- Add MOD 1.5 option
- Allow MOD calculation up to 100% O2 and indicate max exposure duration
- Change color for inappropriate mixes (e.g., 50% at 40m)
- Support older iOS versions (5 & 6)


## Frequently asked questions

### Is Dive Plan free?

Dive Plan is free to download, with in-app purchases available.

### Is Nitrox Buddy free?

Nitrox Buddy is free to download, with in-app purchases available.

### Which has better reviews, Dive Plan or Nitrox Buddy?

Nitrox Buddy is rated higher. Dive Plan averages 1.8 out of 5 from 8 ratings, while Nitrox Buddy averages 4.9 from 468 ratings.

### Do Dive Plan or Nitrox Buddy have ads?

Neither Dive Plan nor Nitrox Buddy shows ads.

### Which is updated more often, Dive Plan or Nitrox Buddy?

Dive Plan ships an update every 2 months, and Nitrox Buddy every 7 months. Most recently, Dive Plan was updated on September 24, 2026 and Nitrox Buddy on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*