Comparison

Clio Daye vs Mama Bloom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clio Daye

Features
Read full description

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.

About

Mama Bloom

This private cycle journal helps you track your period, symptoms, and overall well-being. It offers honest forecasts with a range, not a precise date, and provides insights and educational content. Privacy is a core feature, with data protected locally on your device.

Highlights
  • Private cycle journaling
  • Honest period forecasts (range-based)
  • Log flow, pain, sleep, mood, energy, symptoms
  • Cycle insights and evidence
  • Learn library with sources
  • Privacy-focused architecture
  • Optional Face ID lock and iCloud backup
Features
Read full description

Mama Bloom is a private cycle journal. It keeps your record on your iPhone — there is no account, no server, no ads and no tracking — and it tells you the truth about forecasts: a period is predicted as an honest range, never a fake-precise date. Log flow, pain, sleep, mood, energy and symptoms in seconds. The living record organizes every cycle you keep; Insights show the evidence behind every statement, so you can check the app's work; the Learn library explains cycles calmly, with visible sources and clear boundaries. Privacy, by architecture: the record is protected by iOS Data Protection, the optional widgets are discreet by default, the app can lock behind Face ID, exports leave out intimate categories unless you choose otherwise, and an optional sealed backup lives in your own iCloud, encrypted on your device with a key Mama Bloom never has. One action deletes everything, including the backup. The optional Private Edition subscription adds cycle-to-cycle comparison, forecast memory and guided visual editions. Payment is handled by the App Store; prices are shown before you confirm. Mama Bloom is a wellness journal: a record for reflection, not a medical decision and not contraception. It shows no fertile-window or ovulation estimates, and forecasts can be wrong — when a health decision matters, talk to a professional. Privacy Policy: https://mamabloom.app/mamabloomcycle/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Clio Daye3 screens
Mama Bloom4 screens

Verdict

The call

The clearest difference is in-app purchases: Clio Daye at none against Mama Bloom's 2. Mama Bloom's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mama Bloom sells 2 in-app purchases, starting at $4.99 per month. Clio Daye asks for nothing beyond the download.

UpkeepUpdate frequency

Clio Daye ships an update every 11 days, Mama Bloom weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Clio Daye versus Mama Bloom: the parameters behind the verdict, then further details
ParameterClio DayeMama Bloom
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS26.017.0 — better
Further details — not scored
Size4 MB77 MB
Age rating4+12+
Developerpatrick o'learyMama Bloom UG

In-app purchases

None

Clio Daye

No in-app purchases

2 purchases

Mama Bloom

Subscriptions2
  • Private Edition Monthly$4.991 Month
  • Private Edition Yearly14 Days trial$39.991 Year

Questions

Is Clio Daye free?
Clio Daye is free to download, with no in-app purchases.
Is Mama Bloom free?
Mama Bloom is free to download, with in-app purchases available.
Do Clio Daye or Mama Bloom have ads?
Neither Clio Daye nor Mama Bloom shows ads.
Which is updated more often, Clio Daye or Mama Bloom?
Clio Daye ships an update every 11 days, and Mama Bloom weekly. Most recently, Clio Daye was updated on October 25, 2026 and Mama Bloom on October 31, 2026.

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