Nitrox Buddy vs Hold My Tee
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.
Hold My Tee
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Less looking. More playing. Hold My Tee sends a spotter to walk ahead of your group and watch every shot land. When a ball goes offline, someone is already looking, so you don't have to. HOW IT WORKS 1. Book your tee time at the course. Then open Hold My Tee and pick the same time. 2. You'll see your spotter's name and photo before you pay. 3. Pay in the app. Your spotter meets you at the first tee. 4. They walk ahead the whole round, watching every shot. When a ball ends up offline, they plant a flag next to it. Take your shot and grab the flag on your way past. A SPOTTER IS NOT A CADDIE They don't join your group, carry your bag, or read your putts. They stay out ahead and keep to themselves. Ignore them and play your round. PRICING $66 per round for your group. Now booking in Dallas, Fort Worth. Questions? support@holdmytee.app
Screenshots
Verdict
The clearest difference is in-app purchases: Hold My Tee at none against Nitrox Buddy's 1. Hold My Tee also leads on update cadence (every 10 days vs every 7 months) and iOS requirement (15.1 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. Hold My Tee asks for nothing beyond the download.
Nitrox Buddy ships an update every 7 months, Hold My Tee every 10 days. The most recent releases landed on October 23, 2026 and September 20, 2026 respectively.
| Parameter | Nitrox Buddy | Hold My Tee |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (490 ratings) — better | — |
| Positive reviews | 95.8% of reviews | — |
| Number of ratings | 490 — better | — |
| Update frequency | Every 7 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Gereon Steffens | PAOLINNI VELAZQUEZ |
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)
Hold My Tee
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Nitrox Buddy
- Tip$0.99
Hold My Tee
No in-app purchases
