Comparison

nitroxCalc vs Diveplanner Tec & Rec

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

nitroxCalc

Features
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A very simple application for calculating the maximum possible depth with the nitrox you choose

About

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.

Highlights
  • 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
Features
Read full description

Plan your technical or recreational dives in seconds on your iPhone, iPad and Mac ! Diveplanner is a full featured planner for technical and recreational scuba diving. It features various modules to quickly plan one or multiple dives including gas contingency and oxygen toxicity. Diveplanner was designed as a safe and reliable tool for divers. It helps plan technical and recreational dives quickly and easily and to share the schedule instantly with your dive buddy. Dive planning module: • Open Circuit / CCR, multi gas, decompression dive schedules up to 300 m/985 ft deep in fresh water or saltwater (including E​N13319) at sea level or altitude • Uses Bühlmann decompression model ZH16L-C with user selectable gradient factors as conservatism • Multi level dive instructions • Full automatic gas switch (from the list of selected gas for the dive) or manual gas switch or a mix of both • Full automatic contingency plans computation (lost decompression or travel gas) and ++ (too long/too deep) plans • Automatic bailout plan computation in CCR mode • Various information, caution or warnings for deep END, high or low PPO2, Setpoint, ICD, vestibular DCS due to ICD on gas switch • Computation of gas requirement and gas weight • Account for up to 6 consecutive dives with surface interval to account for residual saturation at start of the current dive • Works in Metric or Imperial units Dive table module: • Open Circuit / CCR, multi gas decompression dive table up to 66 m/210 ft deep and 60 min bottom time, in freshwater or saltwater (​including EN13319) at sea level or altitude • Uses Bühlmann decompression model ZH16L-C with user selectable gradient factors as conservatism • Account for up to 6 consecutive dives with surface interval to account for residual saturation while computing the dive table • Works in Metric or Imperial units • Translated in English, French and German

Screenshots

nitroxCalc3 screens
Diveplanner Tec & Rec4 screens

Verdict

The call

The clearest difference is in-app purchases: nitroxCalc at none against Diveplanner Tec & Rec's 3. nitroxCalc also leads on iOS requirement (9.0 vs 13.0). Diveplanner Tec & Rec's advantage is update cadence (every 3 months vs every 18 months) and device support (4 vs 2). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Diveplanner Tec & Rec sells 3 one-off in-app purchases. nitroxCalc asks for nothing beyond the download.

UpkeepUpdate frequency

nitroxCalc ships an update every 18 months, Diveplanner Tec & Rec every 3 months. The most recent releases landed on September 8, 2026 and August 19, 2026 respectively.

Scorecard4 real differences · 6 level
nitroxCalc versus Diveplanner Tec & Rec: the parameters behind the verdict, then further details
ParameternitroxCalcDiveplanner Tec & Rec
PriceFreeFree
Rating—3.1 (7 ratings) — better
Positive reviews—20.0% of reviews
Number of ratings—7 — better
Update frequencyEvery 18 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better13.0
Further details — not scored
Size5 MB37 MB
Age rating4+4+
DeveloperCAP-RELSensetrails LLC

In-app purchases

None

nitroxCalc

No in-app purchases

3 purchases

Diveplanner Tec & Rec

One-time3
  • Two weeks free trialFree
  • Tec Basic$7.99
  • Tec Advanced$19.99

Questions

Is nitroxCalc free?
nitroxCalc is free to download, with no in-app purchases.
Is Diveplanner Tec & Rec free?
Diveplanner Tec & Rec is free to download, with in-app purchases available.
Do nitroxCalc or Diveplanner Tec & Rec have ads?
Neither nitroxCalc nor Diveplanner Tec & Rec shows ads.
Which is updated more often, nitroxCalc or Diveplanner Tec & Rec?
nitroxCalc ships an update every 18 months, and Diveplanner Tec & Rec every 3 months. Most recently, nitroxCalc was updated on September 8, 2026 and Diveplanner Tec & Rec on August 19, 2026.

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