Diveplanner Tec & Rec vs Simple Nitrox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diveplanner Tec & Rec
Plan technical and recreational scuba dives with detailed gas management, decompression schedules, and contingency planning. This tool helps divers quickly create and share dive plans for various depths and conditions.
- Technical and recreational dive planning
- Multi-gas and CCR dive schedules
- Bühlmann decompression model (ZH16L-C)
- Automatic contingency plans
- Gas requirement and weight calculation
- Dive table generation
- Metric and Imperial units
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Diveplanner Tec & Rec plans recreational and technical dives, on open circuit or closed circuit rebreather (CCR), in a few taps, and keeps your logbook. PLAN • Bühlmann ZH-L16C decompression model with your gradient factors • Open circuit and CCR, down to 300 m / 985 ft, in salt, fresh or EN 13319 water, at sea level or at altitude • Multi-level dives, multi-gas decompression with automatic or chosen switch depths • Contingency plans computed for you: deeper, longer, lost deco gas, GF 100 and the CCR bailout • Warnings for ppO2, END, gas density, isobaric counter diffusion, CNS and OTU • The decompression chart of each plan: the profile, the tissues' ceilings at GF 100 and at your gradient factors, the leading tissue • A dive day of as many repetitive dives as you need, with their surface intervals • Saved plans in folders, shared as files GAS • Describe your cylinders: the plan gives the pressure at the end of the dive, the turn pressure, the rock bottom and the maximum bottom time your gas allows • Gas needed by volume and weight, per gas TABLES • Dive tables by depth and bottom time for your own gases, gradient factors and conditions, with the previous dives of the day • Share or print the table as a PDF TOOLS • Gas blender: partial pressure blending of nitrox, trimix and heliox from what is left in the cylinder, ideal or real gas; the best mix for a depth from your ppO2, END and gas density limits, and the cylinder label • Tides: the tide of a day anywhere at sea, from the nearest NOAA tide station or the EOT20 global tide model, its high and low waters, and the tidal currents and slack waters of a nearby current station, read to the minute on the chart LOGBOOK • Log your dives by hand, from a plan, or download them over Bluetooth from a Shearwater dive computer (Petrel 2, Perdix, Perdix AI, Nerd 2, Teric, Peregrine), with the profile, stops, gases and sensor values • Photos, dive sites on a map, statistics, tags, search and filters • Synchronised between your iPhone, iPad and Mac with iCloud • Export to UDDF, Subsurface, CSV, a PDF logbook and .divelog archives; import UDDF and Subsurface SHARE • Ready-to-cut dive schedules as a PDF, for your buddy or your slate: every plan, the gas and cylinders, CNS, OTU and warnings EVERYWHERE • iPhone, iPad and Mac • Metric or imperial units • In 12 languages, each with its user guide LICENCES • Rec, free: one gas, air or nitrox up to 40 %, down to 66 m / 210 ft • Tec Basic: up to 3 gases, nitrox up to 100 %, normoxic trimix and triox • Tec Advanced: unlimited gases and depth, hypoxic trimix • Try every feature free for 2 weeks Diveplanner is a planning aid. It does not replace training, experience, a dive computer or your own judgement: always dive within the limits of your certification.
Simple Nitrox
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Simple Nitrox provides an easy to use and very visible calculation of Maximum Operating Depth for scuba diving. The most appropriate nitrox mix can also be calculated for a planned depth. Widgets can be added to the Home Screen for up to 5 tanks for easy access to the values for previously analysed tanks and the application. Supports metric and imperial, and o2 up to 99%.
Screenshots
Verdict
The clearest difference is update cadence: Diveplanner Tec & Rec at every 3 months against Simple Nitrox's every 29 months. Diveplanner Tec & Rec also leads on device support (3 vs 1). On price, ads, in-app purchases 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. Diveplanner Tec & Rec sells 3 one-off in-app purchases and Simple Nitrox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Diveplanner Tec & Rec ships an update every 3 months, Simple Nitrox every 29 months. The most recent releases landed on October 16, 2026 and September 12, 2026 respectively.
| Parameter | Diveplanner Tec & Rec | Simple Nitrox |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (7 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 months — better | Every 29 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 83 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Sensetrails LLC | Simon Chivers |
In-app purchases
Diveplanner Tec & Rec
- Two weeks free trialFree
- Tec Basic$7.99
- Tec Advanced$19.99
Simple Nitrox
- Simple Nitrox Full Access$0.99
Questions
Is Diveplanner Tec & Rec free?
Is Simple Nitrox free?
Do Diveplanner Tec & Rec or Simple Nitrox have ads?
Which is updated more often, Diveplanner Tec & Rec or Simple Nitrox?
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