Nightscout
$9.00 / month
Free trial: 7 days
Sign-up fee: $1.00
CGM-in-the-Cloud: your continuous glucose monitor readings on a private site of your own, shared with family, carers or the school nurse.
Nightscout, the community-built CGM data-sharing app started by parents of children with Type 1 diabetes, run for you on ElfHosted. Live glucose graphs, trends and reports, private by default, with an access link for each person you share it with. Kept running, updated and backed up daily.
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"We are not waiting": the Nightscout community's motto since 2014. We run the server, so your family can follow the readings.
What is Nightscout?
Nightscout (often called "CGM-in-the-Cloud") puts readings from a continuous glucose monitor on a website of your own. It began in 2014 with parents of children with Type 1 diabetes who wanted to see their child's readings while the child was at school, and it has been built by that community ever since. It is open source (AGPL-3).
Your phone's uploader app sends the readings to Nightscout, and the people you share it with (a parent at work, a grandparent, a carer, the school nurse) see the same graph in a browser or a follower app.
Nightscout is not a medical device. It is a tool for sharing data, and it is not approved for making treatment decisions. Keep using your CGM's own app and alarms, and keep treatment decisions with you and your care team. Nightscout's documentation covers uploaders for each CGM.
Features
- 📊 Live glucose graph: the current reading, a trend arrow and a choice of time windows.
- 👥 An access link per person: give Nana, a carer or the school nurse their own read-only link, and take it away later without changing anything else.
- 🔒 Private by default on ElfHosted: nobody sees the readings without a link you gave them.
- 📜 Reports: daily and weekly views, time in range and more, ready to print for a clinic visit.
- 🔔 Alarms in the browser: high and low thresholds you set, as an extra on top of your CGM's own alarms.
- 📱 Works on any device: a responsive web page, plus apps and watch faces that read Nightscout.
What ElfHosted does
- We run it and keep it updated. Nightscout and its database run in your own space at ElfHosted, at a secure address of its own, with nothing at home to keep switched on.
- Private by default. Your readings stay hidden until you share an access link. You choose your own API secret, which your uploader app uses.
- Backed up every day. The database is backed up nightly.
- Help with the hosting. Our team on Discord helps with your instance. For CGMs, uploaders and treatment, Nightscout's documentation and community, and your care team, are the right people to ask.
What we don't do: we don't look after your uploader app, your phone, your CGM or its alarms, and we can't promise an alert reaches you: that also depends on your uploader, your phone's connection and the follower's device. Always keep a second way to be alerted, such as your CGM's own app.
Technical Specifications
- 🛠️ Software: Nightscout (cgm-remote-monitor), unmodified, AGPL-3
- 📊 Backend: Node.js and MongoDB, in your own space
- 🌐 Access: HTTPS at your own ElfHosted address
- 🔑 Privacy: anonymous reads denied by default; per-person access links
- 💾 Backups: the database, daily
- 🔄 Updates: handled by ElfHosted, following upstream releases
Frequently Asked Questions
How do I get started?
Start your trial, choose an API secret (at least 12 characters) and set it with ElfBot, then enter your Nightscout address and that secret in your uploader app. The setup guide walks through it.
Will my CGM work with it?
Nightscout works with the uploader apps its community supports for each CGM. Check Nightscout's documentation for yours before you start.
Can my child's school nurse see it?
Yes, that is what Nightscout was built for. Create a read-only access link for the nurse in Nightscout's admin tools and send it to them. They need no account and no app.
Is Nightscout a medical device?
No. It is a data-sharing tool, not approved for making treatment decisions. Keep using your CGM's own app and alarms, and keep treatment decisions with you and your care team.
Where do I get help?
For the hosting, our team on Discord. For CGMs and uploaders, Nightscout's documentation and the CGM in the Cloud community.
Nightscout, the community's CGM-in-the-Cloud, run for you on ElfHosted: private by default, kept updated and backed up daily, so the people who help look after someone with diabetes can follow along.
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