Nitrox Buddy vs divelogs
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.
divelogs
Manage your diving activities and certifications with this companion app. Add, edit, and sync your dive logs, gear, and certifications with the web platform. Supports importing dive data from FIT files.
- Sync dive logs with web platform
- Add and edit dives
- Manage certifications
- Track dive gear
- Import FIT files
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divelogs.de/.org companion app. Sync your divelogs data to the app. Add and edit dives, certifications and gear, sync back any time later. Now supports FIT file imports
Screenshots
Verdict
The clearest difference is in-app purchases: divelogs at none against Nitrox Buddy's 1. divelogs also leads on update cadence (monthly vs every 7 months) and iOS requirement (17.5 vs 26.0). Nitrox Buddy's advantage is review sentiment (96% vs 67%) and ratings volume (468 vs 1). On price, rating, 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. divelogs asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Nitrox Buddy against 5.0 for divelogs. That said, the two scores are not equally well evidenced: Nitrox Buddy has 468 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 96% of Nitrox Buddy's written reviews are positive against 67% of divelogs's.
Nitrox Buddy ships an update every 7 months, divelogs monthly. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.
| Parameter | Nitrox Buddy | divelogs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (468 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 95.7% of reviews — better | 66.7% of reviews |
| Number of ratings | 468 — better | 1 |
| Update frequency | Every 7 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.0 | 17.5 — better |
| Further details — not scored | ||
| Size | 6 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Gereon Steffens | Rainer Mohr |
Customer experience
Nitrox Buddy
divelogs
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)
divelogs
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Nitrox Buddy
- Tip$0.99
divelogs
No in-app purchases
Questions
Is Nitrox Buddy free?
Is divelogs free?
Which has better reviews, Nitrox Buddy or divelogs?
Do Nitrox Buddy or divelogs have ads?
Which is updated more often, Nitrox Buddy or divelogs?
Other comparisons
