Onyx

4 Downloads 14 Views v2.0 31.94 MB 4.1+

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(31.94 MB)

Editor's Overview

Onyx is a science & education application developed by Onyx Lyon1, packaged as a single Android APK of version 2.0 weighing in at 31.94 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 31.94 MB, so it installs quickly even on modest connections.
This build is signed by "Onyx Lyon1" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

All the Lyon 1 services you need on a daily basis, in a lightweight, modern cross-platform application.

- Your university emails, accessible everywhere, anytime. Receive and send emails from Onyx. Flag the most important ones, delete the others.

- Your Tomuss grades in a new, clearer and modern presentation. Add your own coefficients to each grade to create an average representative of the year's validation conditions for each teaching unit.

- Your synchronized university schedule. With an integrated map to find that lecture hall nobody knows about, fast. Let Onyx warn you of changes to your schedule in the coming days, so you don't get caught out.

- A map of the campus, with only the most important information, entirely local and functional offline.

- Izly. Pay with QR codes, even without a connection. Just remember to refill your account first, or ask someone to do it for you, again directly from the app.

Try it, it's open-source! Onyx is an application made for students, by students.

Details

Version	v2.0
Size	31.94 MB
Developer	Onyx Lyon1
Category	Science & Education
Package	fr.onyx.lyon1
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	4

Frequently Asked Questions

Is Onyx free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Onyx require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Onyx safe to install?
We link to the exact APK published by Onyx Lyon1. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Onyx?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Onyx

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded fr.onyx.lyon1.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Onyx» by Onyx Lyon1 and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.