Nitrox Buddy vs Pelagia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nitrox Buddy
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.
- 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
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Nitrox Buddy is a no-frills calculator app for nitrox/enriched air divers - use it to quickly calculate the most important data for your dive: Maximum Operating Depth/MOD, Equivalent Air Depth/EAD, Best Mix and PPO2. The app works with imperial or metric measurements, sea or fresh water, and allows you to select the maximum oxygen content and partial pressure. A companion watch app puts lets you perform all these calculations on your wrist.
Pelagia
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Pelagia is an offline-first dive log built by scuba divers for scuba divers—made to feel like the logbook you always wanted on the boat, and the journal you’ll want to read years later. Offline-first means you don’t need an Internet connection, so it works wherever you do. It’s a great fit whether you want clean, reliable records pulled straight from your dive computer, or you want to capture the whole story of a dive: conditions, team, gear, how it felt, and the photos or video that bring it back.
Screenshots
Verdict
The clearest difference is in-app purchases: Pelagia at none against Nitrox Buddy's 1. Pelagia also leads on iOS requirement (15.6 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Nitrox Buddy sells 1 one-off in-app purchase. Pelagia asks for nothing beyond the download.
| Parameter | Nitrox Buddy | Pelagia |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (489 ratings) — better | — |
| Positive reviews | 95.8% of reviews | — |
| Number of ratings | 489 — better | — |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Gereon Steffens | Roger Clifford |
Bugs and requests
Nitrox Buddy
Reported bugs
4 issues- 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
4 requests- 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)
Pelagia
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Nitrox Buddy
- Tip$0.99
Pelagia
No in-app purchases
