Nitrox by Envivia vs AED Training Box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nitrox by Envivia
This app is a premium digital guide for Nitrox diving, offering educational content and calculation tools to optimize dives. It helps divers understand oxygen limits, plan dives using gradient factors, and prepare for certification.
- Calculate MOD (Maximum Operating Depth)
- Manage oxygen partial pressure (PPO₂)
- Optimize Nitrox dive planning
- Understand oxygen-related physiological limits
- Prepare for Nitrox certification
- Multilingual support
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[Master Nitrox] Nitrox is a premium digital guide dedicated to Nitrox diving (EANx). Designed to support divers in their training and progression, the app combines clear educational content, technical expertise, and reliable calculation tools to optimize every dive. [What Nitrox Allows You To Do] • Accurately calculate your MOD (Maximum Operating Depth) • Manage oxygen partial pressure (PPO₂) • Optimize your Nitrox dive planning using gradient factors • Understand oxygen-related physiological limits • Effectively prepare for your Nitrox certification [A True Educational Companion] Nitrox is designed for: Divers preparing for a Nitrox certification Recreational divers looking to improve their safety Experienced divers seeking to deepen their knowledge Instructors looking for a structured and reliable support tool The app is more than just a calculator: it helps you understand, anticipate, and adapt your dive parameters. [Important] Nitrox is an educational aid for dive planning. It does not replace recognised training, your training agency’s procedures, or a dive computer. Every dive plan must be adapted to actual conditions, the divers’ experience, and the dive team’s agreed procedures. This is not a medical device. [Multilingual] Available in French, English, Spanish, Italian, and German. [About Nitrox Premium] • Payment will be charged to your iTunes account at confirmation of purchase. • The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. • Subscriptions may be managed by the user, and auto-renewal may be turned off in the iTunes account settings after purchase. Privacy Policy https://envivia.fr/policy/nitrox/privacy/ Terms of Use – EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
AED Training Box
This application provides a simulator for learning how to use an automated external defibrillator (AED) in various emergency scenarios. Trainers can utilize pre-set scenarios to guide students through the process, enhancing practical knowledge.
- AED defibrillator training
- Scenario-based learning
- Student simulator
- Trainer tools
- Emergency preparedness
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Train in the use of AED defibrillators. Trainers have a set of scenarios that they can use to train their students. Students have a simulator to learn how to use an AED in various scenarios
Screenshots
Verdict
The clearest difference is rating: Nitrox by Envivia at 5.0 against AED Training Box's 1.0. Nitrox by Envivia also leads on update cadence (every 6 weeks vs every 15 months). AED Training Box's advantage is in-app purchases (none vs 4) and iOS requirement (11.0 vs 15.6). On price, ratings volume, 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 by Envivia sells 4 in-app purchases, starting at $9.99 per year. AED Training Box asks for nothing beyond the download.
Nitrox by Envivia holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Nitrox by Envivia ships an update every 6 weeks, AED Training Box every 15 months. The most recent releases landed on August 29, 2026 and September 10, 2026 respectively.
| Parameter | Nitrox by Envivia | AED Training Box |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 72 MB | 108 MB |
| Age rating | 12+ | 17+ |
| Developer | ENVIVIA | Ricardo Ahumada |
Customer experience
Nitrox by Envivia
AED Training Box
In-app purchases
Nitrox by Envivia
- Premium$9.991 Year
- Thank you$1.99
- Popular$9.99
- Generous$49.99
AED Training Box
No in-app purchases
Questions
Is Nitrox by Envivia free?
Is AED Training Box free?
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Do Nitrox by Envivia or AED Training Box have ads?
Which is updated more often, Nitrox by Envivia or AED Training Box?
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