TrimixBlending vs RuntimeX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrimixBlending
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This app allows technical divers to create custom Trimix blends (Helium, Oxygen, Nitrogen) using partial pressure blending (PPB), with support for Nitrox top-ups and ideal gas law calculations for precise gas mixing. Real Gas Calculations, uses equations of state (Van der Waals) for accurate blending. Accounts for molecular interactions and non-ideal behavior
RuntimeX
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RuntimeX is a dive planner designed for advanced recreational and technical divers who want to create and manage dive plans in a simple, fast and reliable way. It supports Open Circuit Multi-Gas and Closed Circuit Rebreather (CCR) dives, allowing you to plan complex profiles with gas switches, multiple setpoints and detailed decompression. RuntimeX integrates the Bühlmann ZHL-16C and VPM decompression algorithms, letting you analyze different decompression strategies and generate complete runtimes for every dive. Key Features • Open Circuit Multi-Gas dive planning • CCR support with setpoint management • Bühlmann ZHL-16C and VPM algorithms • Automatic decompression calculation • Nitrox, Trimix and Oxygen support • Gas switch management during the dive • Detailed runtime analysis • Dive profile visualization • Save and edit dive plans • Quick duplication of existing plans • Intuitive interface optimized for field use Designed for technical diving Whether you're planning a simple recreational dive or a complex technical dive with Trimix and accelerated decompression, RuntimeX helps you organize your plan in seconds. The app is designed to provide quick access to essential information, with a clean interface focused on planning. Disclaimer RuntimeX is a dive planning tool. All generated plans must be reviewed and validated by the user before use. The user is solely responsible for the correct execution of the dive and for compliance with all applicable safety procedures.
Screenshots
Verdict
The clearest difference is update cadence: RuntimeX at every 2 days against TrimixBlending's every 14 months. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TrimixBlending ships an update every 14 months, RuntimeX every 2 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | TrimixBlending | RuntimeX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.5 | 26.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Costas Bakopanos | MATTEO GARZULANO |
In-app purchases
TrimixBlending
No in-app purchases
RuntimeX
No in-app purchases








