Comparison

GrindConverter vs Tensor Coffee

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

Head to head
About

GrindConverter

Easily convert coffee grinder settings between different models and micron measurements. Quickly compare grind sizes for various brewing methods and fine-tune your espresso or filter coffee recipes.

Highlights
  • Convert settings between 200+ grinder models
  • Convert settings to microns (µm)
  • Grind size reference for brewing methods
  • Fast dial-in and recipe comparison
  • Minimal UI for quick use
Features
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GrindConverter helps you convert coffee grinder settings between 200+ grinders and microns (µm), making it easy to switch grinders, match grind sizes, and dial in espresso, pour-over, and filter coffee. Convert grinder-to-grinder, grinder setting-to-microns, or microns-to-grinder settings. Search and favorite grinders for faster access to the models you use most. Supports 200+ popular manual and electric coffee grinders. Examples include 1Zpresso, Baratza Encore / Encore ESP, Fellow Ode / Opus, Comandante C40, Niche Zero, DF64 (Gen 1/2/V), Timemore, Mahlkönig EK43, Eureka Mignon, and more. Features • Convert coffee grinder settings between supported grinder models • Convert grinder settings ↔ microns (µm) where available • Quick grind size reference for espresso, pour-over, AeroPress, French press, and filter coffee • Clean, minimal UI designed for fast dial-in and recipe comparison How it works 1. Select Grinder A and Grinder B 2. Enter a grinder setting or microns 3. Get an instant conversion and fine-tune by taste Important note Grind settings are not standardized. Burr wear, alignment, bean type, roast level, and humidity can all affect the best grind size. Use GrindConverter as a starting point, then adjust to match your recipe, extraction, and taste. Free access & subscription Includes 3-day free access. After 3 days, a subscription or lifetime purchase is required to continue using GrindConverter. Subscriptions can be managed or canceled anytime in your Apple ID settings. No account required. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Tensor Coffee

Features
Read full description

Tensor Coffee — the companion app for your Tensor One + La Marzocco Linea Micra espresso machine. Tensor Coffee is the official app for the Tensor One precision controller, the engineering-first performance upgrade for the La Marzocco Linea Micra. Where the controller gives you one dial and total control at the machine, this app is where everything comes together: set up your device, design extraction profiles — up to full multi-stage pressure curves — brew and monitor shots live from your phone, review your shot history, and control the machine itself. Connect over WiFi or Bluetooth and turn guesswork into data-driven espresso that's repeatable to the gram. PAIR AND CONNECT Find your Tensor One over Bluetooth and connect in seconds. Put the controller on your home WiFi straight from the app for a faster connection that reaches across the room — Bluetooth stays on as an automatic fallback. Your devices are remembered for instant reconnection. BUILD BREW PROFILES Create and edit the recipes that run on your machine. Design brew-by-time profiles to run a precise extraction on a timer, or brew-by-weight profiles that stop on a target mass when paired with a compatible Bluetooth scale. Set your dose, yield, ratio, image, and name for each profile. PRESSURE PROFILING With the Tensor Profiling Kit installed, shape the extraction itself: multi-stage pressure profiles with up to six stages from 2 to 9 bar, plus blooms — full pauses with smooth pressure tapers in and out. The app draws your curve as you design it. BREW FROM YOUR PHONE Start any profile from the app and watch the shot live: timer, weight and flow rate from your scale, and measured pressure traced over your target curve in real time. Stop the shot from your phone at any moment — and shots started at the machine appear live in the app too. SHOT HISTORY Your shots are recorded on the controller and sync to the app automatically. Review time, weight, and pressure data, and favorite the shots worth repeating. CONTROL YOUR MACHINE Pair the Tensor One with your Linea Micra and bring the machine into the app: set boiler temperature, adjust steam level, switch standby, and run guided backflush cleaning. Connect by scanning the code on your machine or by signing in with your La Marzocco account — the controller holds the connection itself, so it keeps working when your phone is away. Optional Home Assistant integration for home-automation setups. CUSTOMIZE YOUR DISPLAY Upload your own images to the controller's integrated display and assign them to profiles. Crop and frame photos right in the app — they sync automatically to every phone paired with your device. Curate the controller's color library with your own custom accent colors, kept in sync between app and dial. SETTINGS AND UPDATES Adjust display brightness, choose how many profiles appear on the dial, manage scales and calibration — and install firmware updates the controller downloads securely over its own WiFi. Changes made at the dial appear in the app instantly. GUIDED INSTALLATION Step-by-step, illustrated installation instructions walk you through fitting the Tensor One to your Linea Micra, with a clear progress tracker so you always know what's next. DESIGNED IN ZÜRICH Tensor Coffee products, including the Tensor Coffee app and the Tensor One device, are designed and built in Switzerland for people who treat espresso as a craft — replacing manual guesswork with precise, repeatable extraction, shot after shot. Requires a Tensor One controller installed on a La Marzocco Linea Micra. Bluetooth is required for setup; WiFi is recommended for the fastest connection. Pressure profiling requires the Tensor Profiling Kit. Brew-by-weight requires a compatible Bluetooth coffee scale. Machine controls require pairing your Tensor One with the machine; a La Marzocco account is optional.

Screenshots

GrindConverter4 screens
Tensor Coffee4 screens

Verdict

The call

The clearest difference is in-app purchases: Tensor Coffee at none against GrindConverter's 3. Tensor Coffee also leads on iOS requirement (17.0 vs 26.2). GrindConverter's advantage is update cadence (every 10 days vs every 2 months). On price, ads 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. GrindConverter sells 3 in-app purchases, starting at $1.99 per month. Tensor Coffee asks for nothing beyond the download.

UpkeepUpdate frequency

GrindConverter ships an update every 10 days, Tensor Coffee every 2 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
GrindConverter versus Tensor Coffee: the parameters behind the verdict, then further details
ParameterGrindConverterTensor Coffee
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.217.0 — better
Further details — not scored
Size10 MB7 MB
Age rating4+4+
DeveloperWuffworks LLCQuinten Johnson

In-app purchases

3 purchases

GrindConverter

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Annual$9.991 Year
One-time1
  • Lifetime Access$9.99
None

Tensor Coffee

No in-app purchases

Questions

Is GrindConverter free?
GrindConverter is free to download, with in-app purchases available.
Is Tensor Coffee free?
Tensor Coffee is free to download, with no in-app purchases.
Do GrindConverter or Tensor Coffee have ads?
Neither GrindConverter nor Tensor Coffee shows ads.
Which is updated more often, GrindConverter or Tensor Coffee?
GrindConverter ships an update every 10 days, and Tensor Coffee every 2 months. Most recently, GrindConverter was updated on October 20, 2026 and Tensor Coffee on October 10, 2026.

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