About Tech Dive
Diving should be safe and fun. We develop Tech Dive as a simple tool to plan and calculate your next underwater adventure. Tech Dive is an advanced scuba dive calculator and supports metric and imperial units. This app...
Diving should be safe and fun. We develop Tech Dive as a simple tool to plan and calculate your next underwater adventure. Tech Dive is an advanced scuba dive calculator and supports metric and imperial units. This app continues to grow as a one-stop technical diver tool. A technical decompression (DECO) planner will be incorporated with the future PRO version. DIVE CALCULATORS Tool for accurate dive planning, education, and training. ▸ Surface Air Consumption - SAC ▸ Respiratory Minute Volume - RMV ▸ Maximum Bottom Time ▸ Gas Required ▸ Maximum Operating Depth - MOD ▸ Equivalent Air Depth - EAD ▸ Best Enriched Air-Nitrox (EAN) Mix ▸ Equivalent Narcotic Depth - END (Plus only) ▸ Trimix Gas Planner (Plus Only) ▸ Cylinder Fill (Plus only) ▸ Cylinder Top-Up (Plus only) CONVERSION TOOLS ▸ Metric / Imperial Units ▸ Absolute Depth (Atmospheric Depth) ▸ Cylinder Volume / Pressure ▸ Partial Pressure PLUS FEATURES (IN-APP PURCHASE) Tech Dive Plus includes all basic features plus: ▸ Equivalent Narcotic Depth - END Calculator ▸ Trimix Gas Planner ▸ Cylinder Fill calculations (Air, Nitrox, Trimix) ▸ Cylinder Top-Up calculations ▸ Export/share all calculation results as PDF SUBSCRIPTION TERMS Tech Dive is free to download and the basic features free to use. A paid upgrade to Plus or PRO versions provide access to premium features and additional tools. We may offer trial subscriptions that give limited time access to paid features and premium content for the duration of the trial period. Trial subscriptions automatically expire and the app will revert back to the basic version thereafter. No data is lost but access and use of premium features will no longer be available.
Version History Continued background tweaks to prepare the DECO calculations. UI tweaks: - better title visibility - layout improvements on small screen devices *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.4 Apr 8 Continued background tweaks to prepare the DECO calculations. Based on user feedback, we fixed a series of bugs related to using decimals. Fixed: - bug fixes to support decimals for all localizations and languages *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.3 Mar 24 Continued background tweaks to prepare the DECO calculations. Based on user feedback, we fixed a series of bugs related to using decimals. Fixed: - bug fixes to support decimals for all localizations and languages *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.2 Mar 10 Continued background tweaks to prepare the DECO calculations. Fixed: - bug fix to support decimals in all localizations and languages *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.1 Mar 9 TechDive is ready for iOS26. Continued background tweaks to prepare the DECO calculations. Fixed: - rounding accuracy for Trimix planner *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8 09/12/2025 We tweaked many things in the background to prepare the DECO calculations for TechDive! Included are some accuracy refinements and minor design improvements. Fixed: - correct metric default for seawater and fresh water water density *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.7 05/12/2025 *** NEW *** - Cylinder Fill Calculator (Air, Nitrox, Trimix) [Plus Feature] - Cylinder Top-Up Calculator [Plus Feature] Fixed: - landscape layout issues - iPad layout *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6.2 04/24/2025 *** NEW *** - Cylinder Fill Calculator (Air, Nitrox, Trimix) [Plus Feature] - Cylinder Top-Up Calculator [Plus Feature] Fixed: - landscape layout issues - iPad layout *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6.1 04/16/2025 *** NEW *** - Cylinder Fill Tool (Air, Nitrox, Trimix) [Plus Feature] Fixed: - negative temperature conversions - improved PDF export - improved presentation of results - several design and layout improvements *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6 03/11/2025 - Improved PDF export - Improved presentation for results - Design and layout improvements *** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.5.1 03/04/2025 0.5 01/30/2025
Previous Versions
Here you can find the changelog of Tech Dive since it was posted on our website on 2026-02-17 02:35:27.
The latest version is 0.8.4 and it was updated on 2026-06-23 09:42:19. See below the changes in each version.
Tech Dive version 0.8.4
Updated At: 2026-06-02
Changes: Version History Continued background tweaks to prepare the DECO calculations.
UI tweaks:
- better title visibility
- layout improvements on small screen devices
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.4 Apr 8 Continued background tweaks to prepare the DECO calculations.
Based on user feedback, we fixed a series of bugs related to using decimals.
Fixed:
- bug fixes to support decimals for all localizations and languages
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.3 Mar 24 Continued background tweaks to prepare the DECO calculations.
Based on user feedback, we fixed a series of bugs related to using decimals.
Fixed:
- bug fixes to support decimals for all localizations and languages
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.2 Mar 10 Continued background tweaks to prepare the DECO calculations.
Fixed:
- bug fix to support decimals in all localizations and languages
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8.1 Mar 9 TechDive is ready for iOS26. Continued background tweaks to prepare the DECO calculations.
Fixed:
- rounding accuracy for Trimix planner
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.8 09/12/2025 We tweaked many things in the background to prepare the DECO calculations for TechDive!
Included are some accuracy refinements and minor design improvements.
Fixed:
- correct metric default for seawater and fresh water water density
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.7 05/12/2025 *** NEW ***
- Cylinder Fill Calculator (Air, Nitrox, Trimix) [Plus Feature]
- Cylinder Top-Up Calculator [Plus Feature]
Fixed:
- landscape layout issues
- iPad layout
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6.2 04/24/2025 *** NEW ***
- Cylinder Fill Calculator (Air, Nitrox, Trimix) [Plus Feature]
- Cylinder Top-Up Calculator [Plus Feature]
Fixed:
- landscape layout issues
- iPad layout
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6.1 04/16/2025 *** NEW ***
- Cylinder Fill Tool (Air, Nitrox, Trimix) [Plus Feature]
Fixed:
- negative temperature conversions
- improved PDF export
- improved presentation of results
- several design and layout improvements
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.6 03/11/2025 - Improved PDF export
- Improved presentation for results
- Design and layout improvements
*** Tech Dive will continue to grow into a one-stop technical diver tool *** 0.5.1 03/04/2025 0.5 01/30/2025
Tech Dive version 0.8.3
Updated At: 2026-03-24
Changes: Continued background tweaks to prepare the DECO calculations.
Based on user feedback, we fixed a series of bugs related to using decimals.
Fixed:
- bug fixes to support decimals for all localizations and languages
*** Tech Dive will continue to grow into a one-stop technical diver tool ***
Tech Dive version 0.8
Updated At: 2025-09-12
Changes: TechDive is ready for iOS26. Continued background tweaks to prepare the DECO calculations.
Fixed:
- rounding accuracy for Trimix planner
*** Tech Dive will continue to grow into a one-stop technical diver tool ***
Disclaimer
Official App Store Link
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