Comparison

Simple Gong Timer vs NaturalBloom

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

Head to head
About

Simple Gong Timer

This application allows users to set custom timers for workouts and rest periods, with a specified number of rounds. It features a gong sound that won't interrupt music playback and can utilize vibration for notifications even when the device is on silent.

Highlights
  • Customizable workout and rest timers
  • Set number of rounds
  • Gong sound does not interrupt music
  • Vibration notifications
  • iPhone silent mode compatible
Features
Read full description

You can set workout time, rest time and namber of rounds. The sound of gong does not disturb the reproduction of music. You can use vibrator if you set the iPhone to silent mode and turn on the vibrate-switch.

About

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.

Highlights
  • 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
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.

Screenshots

Simple Gong Timer2 screens
NaturalBloom3 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Gong Timer at none against NaturalBloom's 1. NaturalBloom's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 9 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NaturalBloom sells 1 one-off in-app purchase. Simple Gong Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Gong Timer ships an update every 9 months, NaturalBloom every 6 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Simple Gong Timer versus NaturalBloom: the parameters behind the verdict, then further details
ParameterSimple Gong TimerNaturalBloom
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 9 monthsEvery 6 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterPaid
DevicesiPhoneiPhone, iPod, Apple Watch — better
Requires iOS16.015.1 — better
Further details — not scored
Size7 MB57 MB
Age rating4+12+
DeveloperSatoshi HoriguchiDominic Iocco

In-app purchases

None

Simple Gong Timer

No in-app purchases

1 purchases

NaturalBloom

One-time1
  • Unlock NaturalBloom$19.99

Questions

Is Simple Gong Timer free?
Simple Gong Timer is free to download, with no in-app purchases.
Is NaturalBloom free?
NaturalBloom is free to download, with in-app purchases available.
Do Simple Gong Timer or NaturalBloom have ads?
Simple Gong Timer shows ads; NaturalBloom does not.
Which is updated more often, Simple Gong Timer or NaturalBloom?
Simple Gong Timer ships an update every 9 months, and NaturalBloom every 6 weeks. Most recently, Simple Gong Timer was updated on November 4, 2026 and NaturalBloom on October 31, 2026.

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