HueFertility vs NaturalBloom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HueFertility
This app analyzes test strips to provide quantitative hormone and ovulation data. It offers customizable charting to help users understand their cycle and identify fertile windows. It is not a contraceptive or a diagnostic tool for medical conditions.
- Smartphone-based test strip analysis
- Quantitative hormone and ovulation data
- Customizable charting
- Fertility insights
- Cycle understanding
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Smartphone-based tracking that turns test strips into quantitative hormone and ovulation data — complete with a customizable charting feature that helps individuals trying to conceive or understand their cycle. Please note that while HueFertility provides valuable insights into your hormone levels and ovulation cycle, it is not intended to diagnose, treat, or cure any medical condition, including infertility or hormonal disorders. HueFertility is also not a contraceptive and should not be relied upon for birth control. If you have concerns about your fertility or reproductive health, please consult a qualified healthcare professional.
NaturalBloom
This app helps users understand their menstrual cycle using the Sensiplan sympto-thermal method. It offers personalized insights for avoiding pregnancy, trying to conceive, or simply learning about one's body. Data is kept private and stored locally on the device.
- Sensiplan sympto-thermal protocol
- Hormone-free fertility tracking
- Personalized cycle insights
- Local data storage
- Wearable integration (Apple Watch, Oura, etc.)
- Manual and Bluetooth thermometer support
- 60-day refund promise
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: HueFertility at none against NaturalBloom's 1. HueFertility also leads on update cadence (every 3 weeks vs every 6 weeks) and ratings volume (4 vs 1). NaturalBloom's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.4). On price, rating and ads 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. NaturalBloom sells 1 one-off in-app purchase. HueFertility asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for HueFertility against 5.0 for NaturalBloom. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
HueFertility ships an update every 3 weeks, NaturalBloom every 6 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | HueFertility | NaturalBloom |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPod, Apple Watch — better |
| Requires iOS | 18.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 57 MB |
| Age rating | 17+ | 12+ |
| Developer | Group K Diagnostics | Dominic Iocco |
In-app purchases
HueFertility
No in-app purchases
NaturalBloom
- Unlock NaturalBloom$19.99








