# Londinium > Espresso machine control app for pressure transducer and wireless dongle modules. (iPhone/iPad app by Ridgeland Associates Limited.) - Source: https://appshunter.io/ios/app/londinium/id1511032739 (this page in markdown: same URL + `.md`) - Developer: [Ridgeland Associates Limited](https://appshunter.io/developer/1511032738) - Category: Utilities - Price: Free - Rating: 3.17/5 from 6 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 14.1 · 43 MB - Languages: English - Released: 2020-05-01 - Data updated: 2026-06-06 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/londinium/id1511032739/reviews.md ## What is Londinium? This app is for the LONDINIUM model R lever espresso machine that has the pressure transducer (digital pre-infusion) module and wireless dongle installed. It will not have any effect on a LONDINIUM model R that does not have both of these components installed. This app allows you to alter the pre-infusion pressure and the pump delay from your phone or tablet. Low pre-infusion pressures should be matched with a low pump delay value and longer pump delays for high pre-infusion values. Dark roasts require low pre-infusion pressures, medium roasts medium pre-infusion pressures, and light (nordic or filter) roasts require high pre-infusion pressures. If you have any questions please do not hesitate to contact LONDINIUM Espresso. ## Key features - Adjust pre-infusion pressure - Modify pump delay - Optimize for roast levels - Wireless control via phone/tablet - Requires specific hardware ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/londinium/id1511032739/reviews.md ### 3/5 — Only Pressure & Active/Standby Makes Sense *2023-11-26* Only Device screen is simple and intuitive where you can [1] set bar pressure [2] and set active/standby mode in real time. The Automations screen attempts too much. I figured out how to set my R24 to active mode (why is it called “on”?) at a certain time & day, but have not figured out how to then return it to standby mode (why is it called “off”?). What if the Automations screen had the simplicity of the Apple Clock app in alarm mode? One uncluttered screen to make all changes is what makes the Device screen simple and intuitive… Please update and make the app as easy to use as the R24 without unnecessary features. ### 1/5 — Unusable *2023-01-27, version 1.4* The app crashes every time I attempt to login. ### 4/5 — It works… *2022-03-11* It works, I own a LR24, great machine. The app shows boiler pressure and pre-infusion pressure. Pre-infusion is what you want. The app also allows you to set on and off timing. Fiddly, but eventually got it working. That is it. Arguable if you need temperature control. Would be great if the app could: 1. Have a shot timer. 2. Temperature of the group or boiler. 3. Water level. Otherwise, it works. ## Frequently asked questions about Londinium ### Does Londinium work with all LONDINIUM R espresso machines? No, Londinium only functions with LONDINIUM model R machines that have both the pressure transducer (digital pre-infusion) module and the wireless dongle installed. It will not work on models without these specific components. ### How does Londinium help with different coffee roasts? The app allows you to adjust pre-infusion pressure and pump delay. Dark roasts benefit from low pre-infusion pressures, medium roasts from medium pressures, and light roasts require high pre-infusion pressures, all controllable through Londinium. ### What is the recommended setting for pump delay? The app suggests matching low pre-infusion pressures with a low pump delay value. Conversely, longer pump delays are recommended for high pre-infusion values. This helps fine-tune your espresso extraction. ### What devices is Londinium compatible with? Londinium is supported on iPhone and iPod devices. It allows you to conveniently alter your espresso machine's settings directly from your phone or tablet. ### How often is Londinium updated? The latest version of Londinium is 1.4, last updated on October 13, 2022. This indicates a moderate update frequency, ensuring the app remains functional with its intended hardware. ### What is the user rating for Londinium? Londinium has a rating of 3.2 stars based on 6 user ratings. This suggests a mixed reception from its current user base. ### Is Londinium free to download and use? Yes, Londinium is available for free. There are no in-app purchases or subscription fees associated with using the app. ### Does Londinium have ads? No, Londinium does not contain advertisements. Users can control their espresso machine settings without any interruptions from ads. ## Version history (last 5 releases) ### 1.4 — 2022-10-13 Product provisioning fix ### 1.3 — 2022-09-28 Creation of Automations fixed ### 1.2 — 2021-02-28 Fixed issue with adding devices ### 1.1 — 2020-08-07 Bug fixes ### 1.0 — 2020-05-01 No release notes. ## Apps similar to Londinium | App | Rating | Price | Category | | --- | --- | --- | --- | | [ColorTrack](https://appshunter.io/ios/app/colortrack/id1096866950) | — | Free | Utilities | | [OBDGO PRO](https://appshunter.io/ios/app/obdgo-pro/id1593164986) | 4.6 (25) | Free | Utilities | | [Flatify - 2D Objects to CAD](https://appshunter.io/ios/app/flatify-2d-objects-to-cad/id6444910637) | 1.0 (1) | Free | Utilities | | [Remote Battery Monitor+](https://appshunter.io/ios/app/remote-battery-monitor-plus/id6477708105) | 4.5 (6) | Free | Utilities | | [GrowSmart VFS](https://appshunter.io/ios/app/growsmart-vfs/id6450309565) | — | Free | Utilities | | [DENAFRIPS](https://appshunter.io/ios/app/denafrips/id6483305596) | — | Free | Utilities | --- *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 2026-06-06.*