Comparison

V vs Deep Tools

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

Deep Tools

This comprehensive dive toolkit helps recreational, advanced, and technical divers plan dives, log underwater adventures, and blend gases. It offers advanced planning tools, dive computer import, and essential calculations for safe and efficient diving.

Highlights
  • Advanced Deco Planner
  • Dive Log with Shearwater import
  • Gas Blender for Trimix/Nitrox
  • Maximum Operating Depth (MOD) calculator
  • No Decompression Limit (NDL) tracking
  • Metric and Imperial units
Features
Read full description

The Complete Dive Toolkit Deep Tools is a must-have application for recreational, advanced, and technical divers. Whether you are learning to dive, planning complex decompression dives, or logging your underwater adventures, Deep Tools provides reliable tools you can trust. Import dives directly from your Shearwater dive computer, plan dives using the advanced Deco Planner, or use the app as a practical learning aid during your dive training. Tools included:
 - Maximum Operating Depth (MOD) - Oxygen Partial Pressure (ppO₂) - Equivalent Air Depth (EAD) - Equivalent Narcotic Depth (END) - Equivalent Air Density Depth (EADD) - No Decompression Limit (NDL) - Best Trimix for depth - Best Nitrox for depth - Gas consumption and density - Calculator for lifting bag Dive Log: * - Import dives from Shearwater dive computers (Petrel, Perdix, NERD, Teric, etc.) - Log dive sites with name, coordinates, and custom tags - Automatically merge dives with short surface intervals - Share logged dives with your buddies - Create local backups or migrate data to another device Advanced Dive Planner: * Plan complex dives with confidence, whether on Open Circuit (OC) or Rebreather (CCR): - Repetitive dive planning - Bühlmann ZH-L16B and ZH-L16C with Gradient Factors - Gas consumption, CNS, and OTU calculations - Visual dive profile, text plan, pressure graph, and slate view - Lost gas planning - CCR Bailout planning - Multiple point dive plan with custom bailout points - Share dive plans with friends Gas Blender: * Prepare accurate breathing gas mixtures: - Trimix and Nitrox blending - Mix to desired gas - Mix with Top-off gas - Continuous flow blending Additional Features - Metric and Imperial units - Adjustable altitude and water type (EN13319, salt, fresh) - Set your altitude - Custom tank / cylinder database * Advanced features are available with a subscription or during the free trial. Special thanks to V. Paul Gordon, Serge Nelissen and Michael Heus for extensive testing and valuable contributions! Terms of Service: http://www.deepblue.si/privacy/terms-of-service.php

Screenshots

V4 screens
Deep Tools4 screens

Verdict

The call

The clearest difference is price: Deep Tools at Free against V's $48.99. Deep Tools also leads on rating (4.6 vs 4.1) and ratings volume (93 vs 7). V's advantage is in-app purchases (none vs 3) and review sentiment (68% vs 50%). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Deep Tools is free to download; V costs $48.99 up front. Deep Tools sells 3 in-app purchases, starting at $2.99 per month. V asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Deep Tools holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: Deep Tools has 93 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 68% of V's written reviews are positive against 50% of Deep Tools's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

V ships an update every 3 months, Deep Tools every 6 weeks. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

Scorecard7 real differences · 3 level
V versus Deep Tools: the parameters behind the verdict, then further details
ParameterVDeep Tools
Price$48.99Free — better
Rating4.1 (7 ratings)4.6 (93 ratings) — better
Positive reviews67.9% of reviews — better50.0% of reviews
Number of ratings793 — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size3 MB12 MB
Age rating4+4+
DeveloperHHS Software Corp.Deep Blue d.o.o.

Customer experience

V

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

Deep Tools

All ratings93 ratings
Positive91.4%
Neutral2.2%
Negative6.5%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

In-app purchases

None

V

No in-app purchases

3 purchases

Deep Tools

Subscriptions2
  • Subscription Monthly$2.991 Month
  • Subscription Yearly3 Days trial$17.991 Year
One-time1
  • Lifetime Subscription$39.99

Questions

Is V free?
V costs $48.99, with no in-app purchases.
Is Deep Tools free?
Deep Tools is free to download, with in-app purchases available.
Which has better reviews, V or Deep Tools?
Deep Tools is rated higher. V averages 4.1 out of 5 from 7 ratings, while Deep Tools averages 4.6 from 93 ratings.
Do V or Deep Tools have ads?
Neither V nor Deep Tools shows ads.
Which is updated more often, V or Deep Tools?
V ships an update every 3 months, and Deep Tools every 6 weeks. Most recently, V was updated on September 21, 2026 and Deep Tools on September 15, 2026.

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