Filtru has been rated 4.8 stars from 11,914 App Store ratings.

The best CoffeeOS alternative for better coffee.

CoffeeOS is DiFluid's hub for DiFluid gadgets. Filtru speaks to your DiFluid scale too, alongside thirteen other brands, and adds the guided brewing, journal, and scanner around it.

Try Filtru for free About the app

Available for iPhone and iPad. Free to download.

CoffeeOS app icon CoffeeOS, on the App Store

First, some honesty.

DiFluid makes genuinely interesting hardware, and CoffeeOS is its free companion platform: roast colour analysis, particle analysis, brew records, and sharing via short links.

It's built around DiFluid's own devices, though. There's no step-by-step guided brewing advertised, no espresso dial-in tools, AI input rather than a trained bag scanner, three languages, and no GB rating since its August 2025 launch. Filtru supports DiFluid scales as well, and brings the rest of the brewing companion with it.

Filtru vs CoffeeOS,
feature by feature.

Based on each app’s public App Store listing and documentation, as of July 2026.

Feature CoffeeOS Filtru ★ Recommended
Works beyond one hardware brand Partial. Built around DiFluid devices Yes. 14 scale brands, DiFluid included
Guided step-by-step brew timers Partial. Brew Controller + recipes; no step guidance advertised Yes. Guided timers for 15 methods
Community & shared recipes Yes. Share via short links Yes. Community recipes on every brew method
Roasting tools Yes. Roast colour + analysis No. Brewing-first; no roasting tools
Live brew graphs (weight + flow) No. Not advertised in listing Yes. Weight + flow-rate brew print per cup
Espresso dial-in tools No. Not advertised Yes. Dial-in, shot recording, TDS + extraction
Coffee journal Yes. Brew records + bean data Yes. Tasting notes with customisable bag styles
AI bag scanning Partial. AI smart input (image, text, paste) Yes. AbolBuna, on-device, 50,000+ bags
Languages Partial. English + Chinese Yes. 14 languages
Price Yes. Free Yes. Free · optional PRO from $3.49/mo
Track record Partial. Launched Aug 2025 · no GB rating yet Yes. 4.8★ from 11,914 ratings · est. 2016
Try Filtru for free
★★★★★
“Great for casual or power users.”
— App Store review of Filtru

Why people switch from CoffeeOS to Filtru.

Keep the DiFluid gear, free the app.

Your DiFluid scale pairs with Filtru automatically, and so do thirteen other brands. When your kit changes, the app and your brewing history come with you.

Guidance, not just control.

CoffeeOS offers a brew controller and recipe editing. Filtru walks you through the brew itself: fifteen step-by-step methods with community recipes on each.

A scanner that was trained for this.

AI input that reads images and pasted text is handy. AbolBuna is a dedicated model trained on over 50,000 specialty coffee bags, running entirely on your device.

What you get when you switch.

Works with serious coffee scales

DiFluid, Acaia, Timemore, Felicita, Decent, BooKoo and more. Live weight and flow-rate feedback with automatic pairing. See the DiFluid guide →

Guided brewing for fifteen methods

AeroPress, V60, Chemex, French press, espresso, siphon, and more. Each has a baseline recipe and a guided timer that keeps pace with you. See every brew method →

Accessibility is a feature, not a checkbox

Filtru works properly with VoiceOver, including live spoken readouts of your scale's measurements while you brew, as often or as rarely as you like. And you can switch the whole app to fonts like OpenDyslexic, Lexend, or Atkinson Hyperlegible.

The answer is YES

Switching from CoffeeOS? These all have the same answer:

  • Can I use my DiFluid scale in Filtru? Yes
  • Can I follow a step-by-step brew timer in Filtru? Yes
  • Can I track espresso shots in Filtru? Yes
  • Does Filtru work with VoiceOver? Yes
  • Is Filtru free to try? Yes

Filtru is free to download and works with the gear you already own. No subscription needed to start brewing.

Try Filtru now