Ovulation Estimator vs Bloome
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ovulation Estimator
This health tool helps you estimate your ovulation date. Simply enter your last menstrual period and cycle length to predict your most fertile days. It's designed for women tracking their reproductive health.
- Ovulation date calculation
- Last menstrual period input
- Period cycle length input
- Fertile window prediction
- Health and fitness tracking
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Using this calculator know your ovulation date. Input your last menstrual period and period cycle to calculate the probable date of ovulation. Please give your valuable comments and ratings for further improvement.
Bloome
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Bloome is a simple, beautiful period and cycle tracker that respects your privacy. No account, no sign-up - just you and your cycle. TRACK IN SECONDS • Log your period start and end with two taps • Track flow intensity • See your full history with cycle length trends SMART PREDICTIONS • Next period prediction that learns from your logged cycles • Fertile window and ovulation day on a color-coded calendar • Clear "days left" view the moment you open the app GENTLE REMINDERS • Heads-up before your predicted period • Fertile window notifications • Reminders to log, so your predictions stay accurate PRIVATE BY DESIGN • No account or email required - ever • Your data is stored in YOUR private iCloud, end-to-end encrypted • We cannot see your data. No analytics, no tracking, no data sales BLOOME PRO (one-time purchase, yours forever) • Widgets - days until your next period, right on your Home Screen • Apple Calendar sync - see your cycle alongside your events • Ad-free experience IN YOUR LANGUAGE English, Deutsch, Español, Italiano, Français, Srpski Note: Bloome is not a medical device. Predictions are estimates for informational purposes and should not be used for contraception or medical decisions. Contains ads; Bloome Pro removes them. Questions? questions@krojac.com Privacy: https://www.krojac.com/bloome-privacy.html • Terms: https://www.krojac.com/bloome-terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Ovulation Estimator at none against Bloome's 1. Ovulation Estimator also leads on ads (none vs shown). Bloome's advantage is update cadence (every 4 weeks vs every 6 months). On price, device support and iOS requirement 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
Both are free to download. Bloome sells 1 one-off in-app purchase. Ovulation Estimator asks for nothing beyond the download.
Ovulation Estimator ships an update every 6 months, Bloome every 4 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.
| Parameter | Ovulation Estimator | Bloome |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 4 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Malay Patel | Mechanic Cat |
In-app purchases
Ovulation Estimator
No in-app purchases
Bloome
- Bloome Pro$8.99
Questions
Is Ovulation Estimator free?
Is Bloome free?
Do Ovulation Estimator or Bloome have ads?
Which is updated more often, Ovulation Estimator or Bloome?
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