Short, sourced answers. Read aloud if you like.
Short, sourced reads on cycles, periods, fertility, conditions and perimenopause. Sourced from NHS, NICE, ACOG and WHO. Offline with read-aloud.
In short: The Splash app includes the full library of 165 articles on periods, fertility, contraception, pregnancy, conditions and perimenopause, readable offline. Each article lists its sources and when they were last checked, and the library suggests reads for your cycle phase. It is free.
Free in Splash. A paid feature in Flo Premium. Checked Oct 2026

165 short, sourced reads, offline, with read-aloud.
Short and sourced
Every read cites its sources, such as NHS, NICE, FSRH and RCOG guidance, and they were checked again in October 2026.

For you today
Suggestions based on what you logged, worked out on your phone.

Read aloud
Tap play and Splash reads it to you, using your phone's built-in voice.

Works offline
The whole library is inside the app. No signal needed.

Where does the library get its information?
Each read has a quick answer, plain-English sections, “when to see a doctor” and a list of sources with the month they were checked.
Mini courses
Short courses take you through one topic in a few lessons, such as your cycle in five lessons, cramps and heavy periods, or sleep and mood.
For you today
Splash suggests reads based on what you logged, worked out on your phone.
Read aloud
Tap play and your phone reads the article aloud with its built-in voice.
Also on the web
The full library is on this site, so you can read it before you install anything.
Questions
Who writes the library?
The Splash team, based on guidance from bodies such as the NHS, NICE, FSRH and RCOG. Each read lists its sources and when they were checked, and the library was checked again in October 2026. Splash is not affiliated with the NHS.
Has a clinician reviewed it?
Not a named clinician yet. We say so openly. Read how we write on our editorial page.
Can I read it on the web?
Yes, the whole library is on this site too.
Read more
- The four phases, in depthMenstrual, follicular, ovulation and luteal, and what each one is doing. · 5 min
- Cramp relief that actually worksEvidence-backed ways to calm a cranky uterus. · 5 min
- PCOS (now PMOS): the friendly guideIrregular periods, spots, hair changes? Here is what this common condition really is. · 6 min
More features
- PrivacyYour cycle lives on your phone. Optional sync is end-to-end encrypted.
- Apps and widgetsiPhone with Apple Health, Apple Watch, widgets, Android with Health Connect, and the web.
- Partner sharingShare what you choose with a QR code. Pause or switch it off any time.
- Lock Screen timersLive Activities on iPhone: a dose countdown, your mini pill window and a contraction timer.
- PredictionsPeriod and fertile-window estimates shown as honest ranges.
- InsightsCycle history, patterns, gentle experiments and your yearly Wrapped.
Compare: Splash vs Flo · Splash vs Clue
Try library in ten seconds.
165 short, sourced reads, offline, with read-aloud. No sign-up: it opens in your browser.
Splash is not contraception and not a medical device. Predictions are estimates.