Comparison

Nitrox Tools vs iDeco Pro

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

Head to head
About

Nitrox Tools

This app provides essential tools for divers to plan and blend enriched air nitrox. It calculates dive parameters like equivalent air depth and maximum operating depth, and supports various blending methods for custom gas mixes. Easily switch between metric and imperial units and save custom settings for frequent use.

Highlights
  • Enriched air nitrox blending
  • Dive planning calculations
  • Equivalent Air Depth (EAD)
  • Partial Pressure of Oxygen (PPO2)
  • Maximum Operating Depth (MOD)
  • Save custom mixes and settings
  • Metric/Imperial unit switching
Features
Read full description

Enriched Air Nitrox blending and planning tools in your hand and available at a touch. You can use these tools at your air station to provide the information you need to fill a Nitrox tank from any existing mix (or empty). Dive Planning tools provide your Equivalent Air Depth, PPO2 at your planned depth, Maximum & Contingency Operating Depth at various oxygen partial pressures and the "best mix" for a planned depth and oxygen partial pressure. You can easily switch between Metric and Imperial/U.S. systems of measurement to adapt to a new fill station. The dive planning tools also support both salt and fresh water calculations. Chances are you regularly work with a specific set of mixes and and common dive situations. Nitrox Tools includes the convenience of saved settings that you can recall at a touch and adjust to a new situation as needed. You can also select mix values using pre-installed default mixes or your own saved custom mixes. When updating one of the mixes for a tool you are offered a list of saved mixes that you can use directly or adjust as needed. You can save the currently displayed mix by clicking the "+" button. Just like with the saved calculations, you can re-arrange or delete any mixes in your saved list. Do you need to share your planning or blending calculations with other divers? All the tools have the ability to share the results of the calculations from within the application. You can set default email addresses and a subject within Nitrox Tool's settings that will be automatically added when you share a result. Nitrox Tools supports a number of blending methods: • Top Up - blend a final mix from starting mix and pressure using 100% oxygen and air or any available topping mix. • Bleed Down - save expensive oxygen and valuable time by easily calculating how much gas to bleed from an existing cylinder to switch to a different mix using air or any available topping mix. • Mix + Mix - make a specific final mix using the remaining gas in the cylinder and mixing that with banked Nitrox (rather than pure oxygen) and air or another topping mix. This enables the blending of Nitrox without the use of pure oxygen for certain combinations of mixes. Avoiding pure oxygen may increase the safety of the blending process and help manage the cost. • Top Off - determine the expected result from topping an existing cylinder with air or some other topping mix. This situation is common when a diver wants to have the blender top the mix remaining from the first dive with air from the boat's compressor. Remember you must always personally analyze your mix before diving it. This application is not a substitute for proper training and should not be used as a substitute for proper dive planning or the primary Nitrox blending and planning methods taught during training. Please do not attempt to handle high pressure oxygen or fill SCUBA cylinders without proper training.

About

iDeco Pro

This app is a comprehensive dive planner for technical divers, supporting both open circuit and closed-circuit rebreather (CCR) diving. It calculates decompression stops, gas usage, CNS and OTU exposure, and surface intervals. The app also includes a gas mixer for planning custom gas blends.

Highlights
  • Open Circuit and CCR dive planning
  • Decompression stop calculation
  • Gas usage and CNS/OTU tracking
  • Surface interval tracking
  • Gas fill/mixer functionality
  • Bailout planning for overhead environments
  • Configurable settings within the app
Features
Currently charting
Read full description

A complete multiple dive / multi-level dive planner for the technical diver. Includes support for Open Circuit Diving as well as Closed Circuit Rebreathers (CCR). Includes decompression stops, gas usage, CNS tracking, OTU tracking, Surface Interval tracking and many other features. Currently implements the Buhlmann ZHL16/C with Erik Baker's GF algorithm. Open Circuit - Scuba : Supports Air to TriMix (any combination of O2/He/N2), with an unlimited number of decompression gases. Includes Thirds support for planning dives. Closed Circuit (CCR): Supports any O2/He/N2 combination for diluent. Automatically generates bailout plans based on entry of bailout gases. Features a Cave/Wreck bailout option for overhead environment bailouts and gas planning. Gas Fill/Mixer: Allows for filling of Air, Nitrox and Trimix via a simple, easy to use interface. All settings are configurable via the iPhone Settings. Supports US Imperial and Metric iDeco Pro vs. iDeco Pro has many features and improvements to make dive planning even easier. 1) Fully revamped user experience 2) Settings can now be changed in the app. 3) My Gases - Allows you to have a list of the 50 most used gases. Works for the dive phase, deco phase and bailout. 4) New runtime display. 5) Added much higher pressure support for mixing. 6) Superior email support - You can now view, edit and cc others on your plans. 7) Many, many more small features added. 8) Future support for many more decompression algorithms.

Screenshots

Nitrox Tools4 screens
iDeco Pro4 screens

Verdict

The call

The clearest difference is rating: Nitrox Tools at 5.0 against iDeco Pro's 3.9. Nitrox Tools also leads on review sentiment (88% vs 52%) and update cadence (every 5 months vs every 18 months). iDeco Pro's advantage is chart position (#68 vs unranked) and iOS requirement (7.0 vs 15.6). On ratings volume, ads, in-app purchases and monetization model 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

Nitrox Tools costs $5.99 and iDeco Pro $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Nitrox Tools holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews point the same way: 88% of Nitrox Tools's written reviews are positive against 52% of iDeco Pro's.

UpkeepUpdate frequency

Nitrox Tools ships an update every 5 months, iDeco Pro every 18 months. Both last shipped on September 23, 2026.

Scorecard6 real differences · 5 level
Nitrox Tools versus iDeco Pro: the parameters behind the verdict, then further details
ParameterNitrox ToolsiDeco Pro
Price$5.99 — better$8.99
Rating5.0 (4 ratings) — better3.9 (10 ratings)
Positive reviews88.5% of reviews — better52.0% of reviews
Number of ratings410 — better
Update frequencyEvery 5 months — betterEvery 18 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#68 — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.67.0 — better
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperGreg MclaughlinB2 Prototech LLC

Customer experience

Nitrox Tools

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews26 reviews
Positive88.5%
Neutral0.0%
Negative11.5%

iDeco Pro

All ratings10 ratings
Positive70.0%
Neutral10.0%
Negative20.0%
Written reviews100 reviews
Positive52.0%
Neutral17.0%
Negative31.0%

In-app purchases

None

Nitrox Tools

No in-app purchases

None

iDeco Pro

No in-app purchases

Questions

Is Nitrox Tools free?
Nitrox Tools costs $5.99, with no in-app purchases.
Is iDeco Pro free?
iDeco Pro costs $8.99, with no in-app purchases.
Which has better reviews, Nitrox Tools or iDeco Pro?
Nitrox Tools is rated higher. Nitrox Tools averages 5.0 out of 5 from 4 ratings, while iDeco Pro averages 3.9 from 10 ratings.
Do Nitrox Tools or iDeco Pro have ads?
Neither Nitrox Tools nor iDeco Pro shows ads.
Which is updated more often, Nitrox Tools or iDeco Pro?
Nitrox Tools ships an update every 5 months, and iDeco Pro every 18 months. Most recently, Nitrox Tools was updated on September 23, 2026 and iDeco Pro on September 23, 2026.

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