Comparison

V vs Nitrox Blender & Calculator

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

Head to head
About

V

This app is a dive decompression calculator for technical scuba divers, implementing the VPM decompression model. It supports various gas mixes, planning methods for open circuit and rebreathers, and includes detailed dive planning tools and a gas blending utility.

Highlights
  • VPM-B and VPM-B/E decompression models
  • Support for nitrox and trimix gases
  • OC and CCR planning
  • Bailout planning for CCR
  • ppO2, END, and gas consumption details
  • Dive planning tools (best mix, MOD, END, EAD)
  • Gas blending utility
Read full description

A dive decompression calculator for technical scuba divers. V-Planner presents the VPM decompression model and includes both VPM-B and VPM-B/E model versions. The diver can specify any combination of nitrox or trimix, and as many deco gases as required. Planning methods include both OC and Closed Circuit Rebreather. It includes planning for bailouts with SCR and OC legs in a CCR plan. Includes details of ppO2, END, and gas consumptions. This program includes many of the features from the desktop version such as conservatism adjustments, extended stops, adjustable last stops, the planning monitor system and extensive control over many other planning features. Also included is a set of dive planning tools for calculating best mix, maximum operating depth (MOD), END, EAD and other planning considerations. The Mixer utility for blending nitrox and trimix, is included too.

About

Nitrox Blender & Calculator

This app helps divers plan their dives by calculating maximum operating depth, optimal oxygen percentage, and equivalent air depth. It also assists in gas mixing for filling tanks, determining the required mix or the resulting blend.

Highlights
  • Calculate MOD
  • Calculate optimal oxygen percentage
  • Calculate equivalent air depth
  • Gas mixing calculations for tank fills
  • Determine required mix for desired blend
  • Calculate resulting mix from existing blend
Features
Read full description

Your enriched air nitrox buddy on the surface! Calculate MOD (maximum operation depth), optimal oxygen percentage and equivalent air depth when planning your dive, and calculate the gas mixing when filling tanks based on what you know about - either the desired end gas or the mix you fill up with. If you want to fill your tank and end up with a certain mix, you can calculate what mix to add, or if you fill air or another mix into an existing mix, you can calculate what mix you will end up with. ——— The utility is ment as a helping hand and a supplement to - and not replacement for well-thought calculations. The developer takes no responsibility for any errors that might be in the calculations or any consequences here of. Always dive within the limits of your education and dive only with enriched air (nitrox) if you have gained the proper training in the use. Control the calculations. Always analyze your gas before you dive. Dive safely! Plan your dive - dive your plan.

Screenshots

V4 screens
Nitrox Blender & Calculator4 screens

Verdict

The call

The clearest difference is price: Nitrox Blender & Calculator at $0.99 against V's $48.99. Nitrox Blender & Calculator also leads on review sentiment (100% vs 68%) and rating (4.5 vs 4.1). V's advantage is update cadence (every 3 months vs every 9 months) and ratings volume (7 vs 2). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

V costs $48.99 and Nitrox Blender & Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Nitrox Blender & Calculator holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 68% of V's written reviews are positive against 100% of Nitrox Blender & Calculator's.

UpkeepUpdate frequency

V ships an update every 3 months, Nitrox Blender & Calculator every 9 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
V versus Nitrox Blender & Calculator: the parameters behind the verdict, then further details
ParameterVNitrox Blender & Calculator
Price$48.99$0.99 — better
Rating4.1 (7 ratings)4.5 (2 ratings) — better
Positive reviews67.9% of reviews100.0% of reviews — better
Number of ratings7 — better2
Update frequencyEvery 3 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.610.0 — better
Further details — not scored
Size3 MB85 MB
Age rating4+4+
DeveloperHHS Software Corp.ComputerWare

Customer experience

V

All ratings7 ratings
Positive71.4%
Neutral14.3%
Negative14.3%
Written reviews56 reviews
Positive67.9%
Neutral19.6%
Negative12.5%

Nitrox Blender & Calculator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

V

No in-app purchases

None

Nitrox Blender & Calculator

No in-app purchases

Questions

Is V free?
V costs $48.99, with no in-app purchases.
Is Nitrox Blender & Calculator free?
Nitrox Blender & Calculator costs $0.99, with no in-app purchases.
Which has better reviews, V or Nitrox Blender & Calculator?
Nitrox Blender & Calculator is rated higher. V averages 4.1 out of 5 from 7 ratings, while Nitrox Blender & Calculator averages 4.5 from 2 ratings.
Do V or Nitrox Blender & Calculator have ads?
Neither V nor Nitrox Blender & Calculator shows ads.
Which is updated more often, V or Nitrox Blender & Calculator?
V ships an update every 3 months, and Nitrox Blender & Calculator every 9 months. Most recently, V was updated on October 22, 2026 and Nitrox Blender & Calculator on October 24, 2026.

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