WPM Coffee Lab vs WeighMaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WPM Coffee Lab
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With this WPM app, the user can master the settings of maximum 4 stages of extraction pressure-time profiles for your favourite taste of espresso. It allows you to provide 4 sets of sequential parameters of pressure levels (1 the lowest to 7 the highest) and time duration (0-15 seconds) for the process of coffee brewing. Besides, the user can also preset the pre-infusion level, coffee brewing group temperature as well as the steam duty at fingertips. All these settings can then be wirelessly sent to the machine for activation accordingly. After all, the user can save all those data with corresponding line curve shown into favourite recipes that can be retrieved again easily. Other data such as taste definition, the name of the bean and a photo of coffee made can also be put into the diary for the record. Remarks: The app works with designated WPM machine only.
WeighMaster
This app connects to your coffee scale via Bluetooth to provide real-time data curves for the extraction process. It offers multi-mode support, flow monitoring, and automatic assistance for espresso brewing, helping users achieve precise results.
- Bluetooth scale connectivity
- Real-time flow monitoring
- Multi-mode support (pour-over, espresso)
- Automatic espresso assistance
- Extraction data summary
- Dynamic chart visualization
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WeighMaster is a smart extraction aid designed for coffee lovers and professional baristas. Connecting to your coffee scale via Bluetooth Low Energy (BLE), it transforms the abstract extraction process into intuitive real-time data curves. Core Features: ● **Multi-Mode Support:** Built-in pour-over, espresso, and basic weighing modes to suit various brewing scenarios. ● **Real-Time Flow Monitoring:** Simultaneously monitors weight changes and water flow rate, visually displaying extraction stability through dynamic charts, helping you precisely control the pouring rhythm. ● **Automatic Espresso Assistance:** Optimized for espresso, it supports automatic tare, automatic timing upon pouring detection, and automatic pause upon stopping, freeing your hands. ● **Extraction Data Review:** Automatically generates a detailed data summary after extraction, covering total time, final weight, average flow rate, and the entire process curve. Whether you're a coffee enthusiast seeking the ultimate flavor or a professional barista needing precise replication, WeighMaster provides scientific data support. Turn on WeighMaster and begin your professional extraction journey.
Screenshots
Verdict
The clearest difference is update cadence: WeighMaster at every 2 weeks against WPM Coffee Lab's every 5 months. WPM Coffee Lab's advantage is iOS requirement (9.0 vs 13.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WPM Coffee Lab ships an update every 5 months, WeighMaster every 2 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.
| Parameter | WPM Coffee Lab | WeighMaster |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 40 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | G.M.P. Industrial Company Limited | YUEJI TECHNOLOGY (SHENZHEN) LTD |
In-app purchases
WPM Coffee Lab
No in-app purchases
WeighMaster
No in-app purchases
