Clio Daye vs Post Pill
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Clio Daye
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Your cycle data is yours. We mean that literally. Most period tracking apps are free because they make money from your data. That data gets sold to advertisers, shared with data brokers, and in some US states has been requested by law enforcement. We found this unacceptable. So we built Clio Daye. Everything you track in Clio Daye lives only on your device. There is no account to create, no server receiving your data, no cloud backup, no subscription, no ads. We have no access to your data. Nobody does except you. That was the whole reason we built this. How it works Clio Daye covers the things that matter in day-to-day cycle tracking. You can log flow intensity, 15 different symptoms, mood, and notes. It shows your current cycle phase and predicts when your next period is likely to start, with an honest uncertainty range rather than a false-precision date. Over time, it surfaces patterns in your flow, symptoms, and mood so you can see what your own cycle actually looks like. Most apps tell you when your next period is due. Clio Daye shows you a rolling six-month picture of your cycle so you can plan ahead, not just react. Useful for travel, events, or simply knowing what kind of week you're heading into. Everything is protected by Face ID, Touch ID, or a PIN. If someone else picks up your phone, they cannot open the app without your permission. Who it's for Anyone who has a menstrual cycle. Clio Daye uses body-neutral language and doesn't assume gender. It's designed for people across all life stages, from first cycles through perimenopause. A lot of people who try Clio Daye have already had a bad experience with another app. Maybe you found out your previous app shared your data in ways you never agreed to. We built this for exactly that reason. Open source and free, forever Clio Daye is free with no subscription, no premium tier, and no advertising. The source code is public at github.com/pjaol/safeflow so anyone can read it and verify the privacy claims for themselves. We're not a venture-backed startup optimizing for growth. We're a small team who thought this tool should exist and built it. A note on what this isn't Clio Daye is not a contraceptive tool and should not be used as one. Predictions are estimates based on your logged history and become more accurate as you log more cycles. If you need contraception or have medical concerns about your cycle, please talk to a healthcare provider. Requires iOS 17.5 or later.
Post Pill
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Remember how you have been feeling after stopping hormonal birth control. Track a few things that matter to you, compare your recorded weeks, and bring a clear record to a conversation. Post Pill organizes your observations around the date you stopped the pill or another hormonal method. No account. Your record stays on your iPhone unless you choose to export it. A FEW TAPS TO START Choose your method and stop or removal date, then pick one to three things to record: mood, sleep quality, skin, energy, headache, libido, or cramps. Tap the values that fit today and see your first dated check-in immediately. Notes are optional. You can start with a known future date, too. SEE WHAT CHANGED IN YOUR RECORD Your next check-in compares with your previous entry. After check-ins on three days within a seven-day window, open your first recap for free. See how often you recorded each value, how much of the week you recorded, and the entries behind the recap. COMPARE YOUR OWN WEEKS As you record more weeks, see which values appeared more or less often in your entries, with both weeksโ counts side by side. After three weekly recaps, see a growing transition summary and prepare a selected report. These are descriptions of your observations, with visible gaps and source counts. The app does not predict what will happen next or explain what caused a change. KEEP THE DETAILS THAT MATTER Add bleeding or spotting, medication or supplement changes, pregnancy tests, illness, travel, stress, or other context beside the relevant day. Correct dates and entries whenever you need to. Three or four check-ins a week is a useful rhythm; there are no daily streaks or missing-day penalties. REVIEW BEFORE YOU SHARE Choose dates, signals, notes, and context for a CSV or PDF. Read the PDF before sharing it. Export, correction, archive, and deletion remain available. There is no account, advertising, analytics SDK, or community. Records do not sync between devices; export anything you want to keep elsewhere. START FREE. CHOOSE MORE WHEN IT HELPS. Check-ins, context, the first recap, comparisons with your previous check-in, and basic CSV/PDF exports stay free. A 14-day in-app preview starts after your first saved check-in. It requires no payment and does not automatically subscribe you. During the preview, new insights become available as you record enough entries. The full transition summary requires three weekly recaps and generally arrives after the preview. An optional monthly auto-renewing subscription continues new weekly comparisons, the growing summary, and new synthesized reports. The price is shown before purchase. Previously available results and your records remain accessible if you stop subscribing. Restore Purchases and Manage Subscription are available in the app. For adults who have already decided to stop hormonal birth control. This is a personal record, not contraception, fertility prediction, diagnosis, symptom assessment, medical advice, or guidance about starting, stopping, or switching a method. Privacy Policy: https://after-birth-control-support.pages.dev/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Clio Daye at none against Post Pill's 1. Post Pill's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Post Pill sells 1 in-app purchase, starting at $5.99 per month. Clio Daye asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 11 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | Clio Daye | Post Pill |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 11 days |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 18.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | patrick o'leary | Bobby Landerman |
In-app purchases
Clio Daye
No in-app purchases
Post Pill
- Monthly$5.991 Month
Questions
Is Clio Daye free?
Is Post Pill free?
Do Clio Daye or Post Pill have ads?
Which is updated more often, Clio Daye or Post Pill?
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