Trimix Tools 2.3 - App Store

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About Trimix Tools

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...

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.

Version History • Improved compatibility with iOS 26. • Adopted Liquid Glass. • Minor improvements. 2.3 3d ago • Minor improvements. 2.2 09/28/2025 • Minor improvements. 2.1.8 04/24/2024 • Minor improvements. 2.1.7 03/05/2024 • Improved compatibility with iOS 17. 2.1.6 10/02/2023 • Improved compatibility with iOS 14. 2.1.5 11/25/2020 • Improve reporting of input values that can not be used to create the desired result. 2.1.4 07/18/2020 • Corrects an issue with the END calculation in the Dive Planning Tool when the "Oxygen is Narcotic" setting is off. 2.1.3 06/23/2020 • Minor bug fixes and improvements. 2.1.2 06/14/2020 • Fixed an issue with entering the Start Mix for the Top Off tool. • Minor bug fixes and improvements. 2.1.1 05/29/2020 • Minor bug fixes and improvements. 2.1 05/28/2020 • Corrected an issue when selecting a Trimix mix (TMX) with either 100% oxygen or helium (which could in some cases lead to a crash). 2.0.2 05/17/2020 • Native iPad and macOS support (Universal Purchase). • Support for multiple windows on iPad. • Support for entering mix, depth and pressure values using the keyboard. • Support for keyboard navigation. • Support for Dark Appearance. • Minor bug fixes and corrections. 2.0 04/25/2020 Corrects an issue while running on iOS 13.4. 1.9 04/05/2020 • Support for iOS 12. • Minor bug fixes and corrections. 1.8 09/25/2018 • Support for iPhone X. • Minor bug fixes and corrections. 1.7 12/29/2017 • Support for iPhone 6, 6S, 7 6 Plus, 6S Plus and 7 Plus. • Minor bug fixes and improvements. 1.6 09/20/2016 • Support for Retina display. • Support for iPhone 5 and iOS 6. • Minor bug fixes and improvements. 1.5 07/09/2013 At the request of numerous customers, the various blending tools now show the cumulative target pressure after adding each gas to the mix. The flexibility of adding gases in any order has been maintained by allowing the user to change the fill order in the tool's results area. To change the fill order you simply press and drag on a tank image in the results area to change the relative fill order of that gas. The cumulative target pressure will be updated as the row's positions changes. Other improvements include: • Bleed Down - Trimix Tools now includes an often requested tool to calculate the pressure to bleed a mix down to, so that the new mix can be blended with minimum gas loss. • E-mailing the results of your calculations can now be done without leaving the application. Trimix Tools takes advantage of the ability of newer platform software to compose e-mail from within the application. Trimix Tools will still open the the Mail application to send the results on devices running older platform software. • Improvements to some user interface elements. 1.4 01/29/2010 Version 1.3: Improved compatibility with various iPhone OS releases. Version 1.2: Heliair and Helitrox blending is now directly supported with the new "Helitrox" tab. You can calculate Helium based mixes using just Helium and one or two available Nitrox mixes and/or air. This eliminates the need to use pure Oxygen for certain mixes. All the tools now have the ability to e-mail the results of the calculations using the iPhone's built in Mail application. You can enter addresses and the subject directly in Mail or set initial values in Trimix Tool's settings tab that will be transfered to the Mail application. You can now pick Trimix and EAN values using pre-installed default mixes or your own saved custom mixes. You simply tap the "Mixes" button when you are setting a mix to see a list of saved mixes that you can use directly by tapping on them. You can save the current mix displayed on the gas picker wheels by tapping the "+" button. Just like with the saved calculations, you can re-arrange or delete any mixes in your saved list. Based on user requests, the display format for Trimix values has been changed to the more common notation in the technical diving community of O2/He (for example 10.5/50 is now used instead of 10.5%-50%). There have also been some minor improvements displaying some results and entering some values. 1.3 05/21/2009 1.2 10/03/2008 1.1 09/06/2008 1.0 08/31/2008

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Previous Versions

Here you can find the changelog of Trimix Tools since it was posted on our website on 2016-10-03 01:01:27. The latest version is 2.3 and it was updated on 2026-06-28 01:30:05. See below the changes in each version.

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