Reliable, evidence-based sexual and reproductive health information. Euki takes privacy seriously. They do not store any of the information you enter into the app in the cloud or anywhere. Reviewed by consumerreports.org.
Official website eukiapp.com
Our take
Tiny as open-source projects go, but that undersells it, because Euki is less a hobby project than a purpose-built tool for sexual and reproductive health where on-device storage genuinely protects users. Nothing you enter goes to the cloud, and it even has a decoy PIN for situations where someone might force the app open. Choose it when the threat you care about is another person physically checking your phone, not a server breach. Just know the content library matters as much as the privacy here.
GitHub at a glance
Euki-Inc/Euki-Android
Stars
13
+ 0 this week
Last commit
1mo ago
healthy
License
GPL-3.0
Stars, last 10d
Listed in
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Euki license, in plain English
GPL-3.0 Strong copyleft
Free to use and modify, but anything you distribute that is built on it must also be open under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.