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Screenshots

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About BlendJunk

BlendJunk is the gas blending app for technical divers and fill stations. Connect your oxygen analyzer wirelessly via Bluetooth and let the app do the rest. ANALYZE Connect your OxyJunk, Divesoft or DNA analyzer via BLE. The app instantly shows your O₂ and He values and automatically calculates the MOD based on your ppO₂ limit. BLEND Enter your start and target pressure, choose your target mix and BlendJunk calculates exactly how much of each gas to add. Including fill order and top-up gas selection. PRINT Print a professional cylinder label with all gas data directly to your Brother label printer. Scan a cylinder with NFC or QR and the cylinder ID appears automatically on your label. WIRELESS Connect your wireless pressure sensor (WLB-PT) to automatically read cylinder pressure. No more manual input needed. FLEXIBLE No analyzer at hand? Enter your values manually and use BlendJunk as a standalone blend calculator. Features: • Bluetooth connection with OxyJunk, Divesoft and DNA analyzers • Trimix, Nitrox and Heliox support • Automatic MOD calculation • Gas blend calculator with fill steps • NFC and QR cylinder identification • Direct label printing via Brother QL-1110NWB - QL710W • WLB-PT wireless pressure sensor support • Works offline, no account needed Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s new

Version 2.14.1+90 · Updated October 30, 2026

Language updates

App privacy

The developer, Rogier Visser, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to BlendJunk

Looking for apps like BlendJunk? Here are 6 similar apps on the App Store. The highest rated is Trimix Tools (5.0/5), and 5 of the 6 are free to download.

BlendJunk vs. alternatives
App Rating Price Last updated Compare
BlendJunk – 3.99 USD October 30, 2026
DuikRadar – Free Oct 27, 2026 Compare
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BlueDive – Free Oct 21, 2026 Compare
Trimix Tools 5.0 / 5 (5) 6.99 USD Oct 22, 2026 Compare
MijnDuikopleiding – Free Aug 28, 2026 Compare
krakentools – TEC/REC Tools – Free Jul 26, 2026 Compare

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