Nitrox Buddy vs iScubaSites
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.
iScubaSites
Discover scuba diving locations globally with this user-friendly app. Simply search a region to find available dive sites and access detailed information when provided. Explore the underwater world with ease.
- Worldwide diving site information
- Location-based search
- Detailed dive site information
- Simple and intuitive interface
- Explore underwater locations
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This app is designed to help divers to find information about available diving sites worldwide. iScubaSites is very simple to use, just search for a location and the app will show you the available scuba diving sites in the area. Selecting a diving site, will show the name and additional information whenever available.
Screenshots
Verdict
The clearest difference is rating: Nitrox Buddy at 4.9 against iScubaSites's 4.4. Nitrox Buddy also leads on ratings volume (489 vs 8) and review sentiment (96% vs 80%). iScubaSites's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 7 months). On price, ads, device support and iOS requirement 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. iScubaSites asks for nothing beyond the download.
Nitrox Buddy holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Nitrox Buddy has 489 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 96% of Nitrox Buddy's written reviews are positive against 80% of iScubaSites's.
Nitrox Buddy ships an update every 7 months, iScubaSites every 6 weeks. The most recent releases landed on November 1, 2026 and October 20, 2026 respectively.
| Parameter | Nitrox Buddy | iScubaSites |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (489 ratings) — better | 4.4 (8 ratings) |
| Positive reviews | 95.8% of reviews — better | 80.0% of reviews |
| Number of ratings | 489 — better | 8 |
| Update frequency | Every 7 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Gereon Steffens | Arie Guttman |
Customer experience
Nitrox Buddy
iScubaSites
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)
iScubaSites
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Nitrox Buddy
- Tip$0.99
iScubaSites
No in-app purchases
Questions
Is Nitrox Buddy free?
Is iScubaSites free?
Which has better reviews, Nitrox Buddy or iScubaSites?
Do Nitrox Buddy or iScubaSites have ads?
Which is updated more often, Nitrox Buddy or iScubaSites?
Other comparisons
