Life & fun · alternatives · 2026
24 alternatives to DotDiary
Private period tracker — your data stays in Apple Health
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1IM
Hey HN, after the app I actually used to track my period wanted me to log in and save my data in the cloud, I decided to write my own. Most apps in this area are based on a subscription model and display far too much information anyway. For me, a simple calendar is enough where I can add a few notes if necessary. So that is the result of my work - a simple design and the data is only saved on the smartphone.
2024 · play.google.com · its alternatives →
- 2
Easy to use period tracking app that respects your privacy
2024 · play.google.com · its alternatives →
- 3
- 4
Your period data never leaves your phone. 100% private.
Nov 2025 · apps.apple.com · its alternatives →
- 5
The private period tracker that grows with every cycle
Aug 2026 · simply-track.com · its alternatives →
- 6
Simpluna▲68I've been running Simpluna, a period-tracking app, for six years. It's a company based in Tokyo, Japan, but development and operations are basically a one-person effort. The app is built with React Native (Expo). The defining trait of the app is that it's simple, with no unnecessary features. Recording periods, calculating predictions, and sending notifications — that's the core of it. This space is dominated by big players (Flo, Clue, and in Japan, Luna Luna). Building something similar would have been hopeless, so I made the things those apps don't have my selling point. Optional features…
2021 · simpluna.app · its alternatives →
- 7
Private pregnancy tracker. No cloud, no accounts.
Jun 2026 · getzorya.app · its alternatives →
- 8
- 9
A stunning refresh to help you write more, think clearer
2024 · diarly.app · its alternatives →
- 10
Lotus▲92A calendar to help women’s track their menstrual cycle
2017 · apps.apple.com · its alternatives →
- 11
Encrypted period tracking with AI chat.
Dec 2025 · play.google.com · its alternatives →
- 12
- 13
Track your menstrual cycle with accuracy and total privacy
2025 · faye.health · its alternatives →
- 14
- 15
Private period tracker with apple intelligence
Jun 2026 · apps.apple.com · its alternatives →
- 16
- 17
Perla▲10Period tracking that never sees your data. Fully on-device.
Apr 2026 · perlaapp.com · its alternatives →
- 18
Convenient and fun way to keep track of your breastfeeds
2021 · boobytrack.app · its alternatives →
- 19
- 20IB
There’s something quietly unsettling about how normal it's become to hand over our most personal data to apps that barely deserve our trust. My wife once showed me a notification she got from her period tracking app. At first, it seemed like a simple reminder. But then came the ads. Not long after, she started getting eerily specific suggestions on other platforms. Things she hadn’t searched for. Things that felt too close. Somewhere, her cycle had been turned into a data point. That bothered me more than I can explain. These apps promise helpful insights. But in return, they take so much.…
2025 · its alternatives →
- 21
Lunara▲3A private period tracker that never leaves your iPhone
Jun 2026 · ashvara.io · its alternatives →
- 22
Privacy-first period calendar with smart predictions 📅
2020 · period-calculator.com · its alternatives →
- 23
Lutea▲57Track your cycle - 100% transparent, 100% your data
2022 · play.google.com · its alternatives →
- 24
I kept trying to explain how important outdoor light is and how most people aren’t getting enough. Eventually I figured that showing is more effective than telling. So we built a free app that uses your Apple Watch or iPhone to automatically track your light exposure throughout the day. It tells you if you’re getting enough, shows you how consistent you are, and rewards habits that support hormone balance. It's in beta on TestFlight, let me know what you think!
2025 · lumehealth.io · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →