Comparison

NaturalBloom 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

NaturalBloom

Features
Read full description

NaturalBloom is a hormone-free fertility-awareness app built around the Sensiplan sympto-thermal protocol — a well-studied natural family planning method that, when learned and used correctly, has been shown in published research to be a highly effective approach to family planning. Whether you're avoiding pregnancy, trying to conceive, or simply curious about your body, NaturalBloom helps you read the signals your cycle is already giving you. WHAT MAKES NATURALBLOOM DIFFERENT • Sensiplan-grade engine — three-over-six rule for temperature confirmation, peak-mucus rule cross-check, conservative fertile-window logic. Same rules a certified instructor would teach you. • Calm, clear, never alarming — no fear-based nudges, no "you're fertile!" red dots. Plain-language daily insights that explain what your body is doing and why. • Yours forever — one $19.99 purchase. No subscription. No ads. No upsells. Every future update to the iPhone app is included. Family Sharing is on, so your spouse gets it too. • Your data stays on your device — everything you log is stored in your phone's secure local storage. We don't run servers that hold your cycle data. We don't sell, share, or analyze it. We don't ship third-party advertising or analytics SDKs. WHAT YOU CAN TRACK • Basal body temperature — manual entry, Bluetooth thermometers (Easy@Home, Femometer, iThermo), or wearable temps from Apple Watch, Oura Ring, Whoop, Garmin, Fitbit, and Ultrahuman via Apple Health • Cervical mucus observations (Sensiplan categories) • Period flow and intermenstrual spotting • LH (ovulation) test results • Intimacy • Free-text notes for symptoms and life events WEARABLE-AWARE INSIGHTS If you wear an Apple Watch or Oura, NaturalBloom understands the quirks: • A nightly wrist-temperature deviation is calibrated to your oral baseline before being used as your BBT • Short-sleep nights (under 4 hours) flag the temperature as less reliable — Sensiplan recommends marking it "disturbed" • A heads-up that your luteal-phase HRV dip and resting heart-rate climb are progesterone at work, not poor recovery PERSONALISED, NOT GENERIC Every cycle, NaturalBloom learns your patterns: average length, ovulation day, luteal phase length, shortest and longest cycles. Daily insights reference your real numbers — "You ovulated 9 days ago. Your luteal phase typically runs 14 days, so your period is expected May 1." — never a horoscope. FOR EVERY GOAL • Avoid pregnancy: conservative fertile-window framing, double-confirmation cues • Conceive: peak-fertility highlighting, ovulation confirmation in plain English • Just understand my body: full body-literacy explanations of what's happening hormonally and what you might notice REFUND PROMISE NaturalBloom comes with a 60-day satisfaction promise. If it isn't right for you, email hello@naturalbloom.app and we'll endorse your refund request with Apple. IMPORTANT NaturalBloom is an educational tool. It is not a contraceptive, not a medical device, and does not provide medical advice. If you're using fertility awareness to avoid or achieve pregnancy, please learn the method thoroughly — ideally with a certified Sensiplan or sympto-thermal instructor — and talk to a clinician about decisions that affect your health.

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

NaturalBloom3 screens
Mama Bloom4 screens

Verdict

The call

The clearest difference is update cadence: Mama Bloom at weekly against NaturalBloom's every 6 weeks. NaturalBloom's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. NaturalBloom sells 1 one-off in-app purchase and Mama Bloom sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NaturalBloom ships an update every 6 weeks, Mama Bloom weekly. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 7 level
NaturalBloom versus Mama Bloom: the parameters behind the verdict, then further details
ParameterNaturalBloomMama Bloom
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size57 MB77 MB
Age rating12+12+
DeveloperDominic IoccoMama Bloom UG

In-app purchases

1 purchases

NaturalBloom

One-time1
  • Unlock NaturalBloom$19.99
2 purchases

Mama Bloom

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

Questions

Is NaturalBloom free?
NaturalBloom is free to download, with in-app purchases available.
Is Mama Bloom free?
Mama Bloom is free to download, with in-app purchases available.
Do NaturalBloom or Mama Bloom have ads?
Neither NaturalBloom nor Mama Bloom shows ads.
Which is updated more often, NaturalBloom or Mama Bloom?
NaturalBloom ships an update every 6 weeks, and Mama Bloom weekly. Most recently, NaturalBloom was updated on October 6, 2026 and Mama Bloom on October 19, 2026.

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