Comparison

Trimix Tools vs DIVE Magazine

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

Head to head
About

Trimix Tools

This app provides essential tools for divers to plan and blend Trimix gases. It calculates optimal mixes based on depth, oxygen partial pressure, and equivalent narcotic depth, and supports various cylinder filling scenarios. Calculations are available offline and can be customized with saved settings.

Highlights
  • Trimix blending and planning
  • Depth and partial pressure calculations
  • Equivalent Narcotic Depth (END) calculation
  • Saltwater and freshwater support
  • Cylinder filling and bleed down calculations
  • Metric and Imperial system support
  • Offline functionality
  • Saved settings and custom mixes
Features
Read full description

Trimix blending and planning tools that can be used where you are and when you need them. You can use these tools to plan your mixes prior to arriving at the dive shop or to fill your cylinder at the air station or on the boat. Calculations are provided for the best Trimix given a planned depth and a desired maximum partial pressure of oxygen and equivalent narcotic depth (END). You can also calculate the ceiling and maximum depths along with your END based on your planned mix. The dive planning tools support both salt water and fresh water calculations. The blending tools provide for filling a cylinder with a remaining mix (or empty) to a specified target mix using oxygen, helium and a topping mix (air or another available mix). You can also calculate the result of topping an existing partially filled cylinder with a specific topping mix (air or another available mix). There is also a Bleed Down calculator that allows you adjust an existing full or partially full cylinder to a new mix with minimal wasted gas. Trimix Tools supports calculations in both metric and Imperial/US systems of measure. Traveling on a boat or working out of network range? These tools are at hand any time you have your iPhone, iPad or iPod touch. You could, for example, easily calculate the result of topping your cylinder from your first dive with air from the boat's compressor to take advantage of any remaining mix. You also have the convenience of saved settings that you can recall at a touch and adjust to a new situation as needed. Chances are you regularly work with a specific set of mixes and common dive situations. Trimix Tools includes the convenience of saved settings that you can recall 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 tapping on 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 Trimix Tool's settings that will be automatically added when you share a result. All END calculations (Dive Planning and Best Trimix tabs) in Trimix Tools treat oxygen as a narcotic gas by default. There is an option available under the Settings tab to change the default so that oxygen is not treated as narcotic if that is your preference. 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 Trimix blending and planning methods taught during training. Please do not attempt to handle high pressure oxygen or fill SCUBA cylinders without proper training.

About

DIVE Magazine

Access the latest diving news and a monthly roundup of past articles for free. Subscribers unlock a vast archive of content dating back to 2010, including digital magazine issues with stunning photography and in-depth articles.

Highlights
  • Latest diving news and ocean stories
  • In-depth diving destination guides
  • Monthly article roundups
  • Archive of digital magazine issues
  • Full-page and mobile-optimized viewing
Features
Read full description

With our mobile friendly app you can get all the latest news from DIVE for free and access a handy-round up of previous articles each month. And subscribers can access a vast archive of DIVE articles going back to 2010 including digital versions of our beautiful quarterly magazine brimming with top rate articles and awesome photographs. The DIVE app is the perfect way to browse ALL our content from your phone or tablet: • DIVELIVE Keeps you update with all the latest diving and ocean stories - travel guides, kit reviews, in-depth articles, videos and stunning photographs • DESTINATIONS In-depth guides to the world's top diving areas including the Philippines, the Bahamas and Malta • DIVE ISSUES A full archive of monthly issues going back to May 2010 and all our quarterly, collector magazines which can be viewed either as full pages or optimized to be read on your mobile We have been producing DIVE for more than 20 years - the magazine, website, newsletter and app that divers deserve! The DIVE Magazine subscription on iOS is available as follows: ∙Annual digital subscription for £10.49 ∙Payment will be charged to your iTunes account on confirmation of purchase ∙Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period ∙Account will be charged for £10.49 renewal within 24-hours prior to the end of the current period depending on subscription plan ∙Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase ∙No cancellation of the current subscription is allowed during active subscription period The DIVE magazine privacy policy may be found here http://divemagazine.co.uk/privacy and the DIVE magazine terms of use may be found here http://divemagazine.co.uk/terms

Screenshots

Trimix Tools4 screens
DIVE Magazine2 screens

Verdict

The call

The clearest difference is price: DIVE Magazine at Free against Trimix Tools's $6.99. Trimix Tools's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 11). On review sentiment, ratings volume, update cadence 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

DIVE Magazine is free to download; Trimix Tools costs $6.99 up front. DIVE Magazine sells 11 in-app purchases, starting at $13.99 per year. Trimix Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Trimix Tools holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 13 respectively. Written reviews point the same way: 100% of Trimix Tools's written reviews are positive against 95% of DIVE Magazine's.

UpkeepUpdate frequency

Trimix Tools ships an update every 5 months, DIVE Magazine every 7 months. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Trimix Tools versus DIVE Magazine: the parameters behind the verdict, then further details
ParameterTrimix ToolsDIVE Magazine
Price$6.99Free — better
Rating5.0 (5 ratings) — better4.4 (13 ratings)
Positive reviews100.0% of reviews — better95.4% of reviews
Number of ratings513 — better
Update frequencyEvery 5 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size6 MB24 MB
Age rating4+4+
DeveloperGreg MclaughlinConnected Digital Ltd

Customer experience

Trimix Tools

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DIVE Magazine

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews935 reviews
Positive95.4%
Neutral1.5%
Negative3.1%

Bugs and requests

Trimix Tools

Not enough reviews yet to summarise bugs or requests.

DIVE Magazine

Reported bugs

3 issues
  • Crashes and freezes when accessing back issues
  • Download issues and unreliable offline access
  • Forced review popups that cannot be dismissed

Requested features

4 requests
  • Offline download and reading support
  • Improved navigation and user experience
  • More interactive and multimedia content
  • Expanded coverage of cold water diving

In-app purchases

None

Trimix Tools

No in-app purchases

11 purchases

DIVE Magazine

Subscriptions1
  • Dive Subscription - With Full Access to All Issues$13.991 Year
One-time10
  • July 2010 Issue - Dive Magazine$3.99
  • June 2010 Issue - Dive Magazine$3.99
  • May 2010 Issue - Dive Magazine$3.99
Show 7 more
  • August 2010 Issue - Dive Magazine$3.99
  • September 2010 Issue - Dive Magazine$3.99
  • October 2010 Issue - Dive Magazine$3.99
  • Dive Magazine Issue November 2010$3.99
  • Dive Magazine Issue December 2010$3.99
  • Dive Magazine Issue January 2011$3.99
  • February 2011 Issue - Dive Magazine$3.99

Questions

Is Trimix Tools free?
Trimix Tools costs $6.99, with no in-app purchases.
Is DIVE Magazine free?
DIVE Magazine is free to download, with in-app purchases available.
Which has better reviews, Trimix Tools or DIVE Magazine?
Trimix Tools is rated higher. Trimix Tools averages 5.0 out of 5 from 5 ratings, while DIVE Magazine averages 4.4 from 13 ratings.
Do Trimix Tools or DIVE Magazine have ads?
Neither Trimix Tools nor DIVE Magazine shows ads.
Which is updated more often, Trimix Tools or DIVE Magazine?
Trimix Tools ships an update every 5 months, and DIVE Magazine every 7 months. Most recently, Trimix Tools was updated on October 14, 2026 and DIVE Magazine on October 21, 2026.

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