# BlendJunk — Gas blending for divers

> Gas blending for divers (iPhone/iPad app by Rogier Visser.)

- Source: https://appshunter.io/ios/app/blendjunk/id6761421435 (this page in markdown: same URL + `.md`)
- Developer: [Rogier Visser](https://appshunter.io/developer/672667764)
- Category: Sports
- Price: $3.99
- Age rating: 17+
- Requires: iOS 16.1 · 31 MB
- Languages: American English
- Released: 2026-04-13
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/blendjunk/id6761421435/reviews.md

## What is 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
  • WLB-PT wireless pressure sensor support
  • Works offline, no account needed


## Version history (last 5 releases)

### 2.11.0+65 — 2026-08-31

Added tanklabel option

### 2.10.2+64 — 2026-08-19

Update for negative filling values
New transmitter support

### 2.10.0+62 — 2026-07-26

Put extra printer options for air, nitrox and trimix

### 2.9.7 — 2026-06-26

Added big MOD sticker option

### 2.9.6 — 2026-06-11

Small updates and improvements

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## More apps by Rogier Visser

- [Qusax](https://appshunter.io/ios/app/qusax/id672667761)
- [CCR Junk](https://appshunter.io/ios/app/ccr-junk/id6757073023)
- [My Divejunk](https://appshunter.io/ios/app/my-divejunk/id6758464173)
- [Hide Game](https://appshunter.io/ios/app/hide-game/id6762065305)
- [DivePlot](https://appshunter.io/ios/app/diveplot/id6786434589)

All apps by Rogier Visser: https://appshunter.io/developer/672667764

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*