Comparison

CCRtools vs TrimixBlending

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

Head to head

Partial Pressure Trimix Blend

Free

⚽ Sports

No ratingsView app →

About

CCRtools

Read full description

CCRtools is application for closed-circuit rebreather (CCR) divers. CCRtools helps you prepare for dives safely with checklists, gas blending calculations, O₂ sensor tracking, and standard diving calculators. Checklists can be downloaded, created or modified and can contain checks, values to enter and timers. The sensor log supports up to five O₂ sensors displaying the trend of linearity.

About

TrimixBlending

Features

Read full description

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

Screenshots

CCRtools4 screens

TrimixBlending1 screens

Verdict

The call

The clearest difference is update cadence: CCRtools at fortnightly against TrimixBlending's every 14 months. CCRtools also leads on iOS requirement (18.2 vs 26.5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CCRtools ships an update fortnightly, TrimixBlending every 14 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 4 level

CCRtools versus TrimixBlending: the parameters behind the verdict, then further details
Parameter	CCRtools	TrimixBlending
Price	Free	Free
Update frequency	Fortnightly — better	Every 14 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	18.2 — better	26.5
Further details — not scored
Size	1 MB	4 MB
Age rating	4+	4+
Developer	Kai-Uwe Sattler	Costas Bakopanos

In-app purchases

None

CCRtools

No in-app purchases

None

TrimixBlending

No in-app purchases

Questions

Is CCRtools free?

CCRtools is free to download, with no in-app purchases.

Is TrimixBlending free?

TrimixBlending is free to download, with no in-app purchases.

Do CCRtools or TrimixBlending have ads?

Neither CCRtools nor TrimixBlending shows ads.

Which is updated more often, CCRtools or TrimixBlending?

CCRtools ships an update fortnightly, and TrimixBlending every 14 months. Most recently, CCRtools was updated on September 26, 2026 and TrimixBlending on September 23, 2026.