Health
HerWeigh
Cycle-aware weight tracking for women. Understand your body's natural hormonal patterns — not just the number on the scale.
Key Features
Cycle Phase Weight Overlays
Visualize your daily weigh-ins mapped directly against your Follicular, Ovulation, and Luteal phases to see hormonal patterns instantly.
Luteal Phase Water Insights
Understand why gaining 2–5 lbs before your period is normal progesterone-driven fluid retention, not fat gain.
Trend Smoothing & Moving Averages
Filter out daily water noise and scale fluctuations with intelligent trendlines to track real, sustainable progress.
Apple HealthKit 2-Way Sync
Seamlessly import past weight history and sync menstrual cycle logs with Apple Health in real time.
Zero Calorie Obsession
A clean, peaceful companion designed for sustainable habits without barcode scanners, food guilt, or calorie counting.
100% Private On-Device Data
Your health and cycle data belongs strictly to you. No tracking, no ads, and never sold to third parties.
Designed For
HerWeigh vs Happy Scale: Which App Is Right for You?
A concise side-by-side comparison of features, workflows, and core philosophies.
Quick Summary
Happy Scale popularized weight trend smoothing, but treats women's bodies the same as men's by ignoring hormonal cycles. HerWeigh pairs moving average trendlines with menstrual cycle phase awareness so you know whether a scale increase is water retention or a real trend.
| If you want... | Choose |
|---|---|
| Menstrual cycle phase tracking | HerWeigh |
| Hormonal water retention insights | HerWeigh |
| Cycle-to-cycle comparison | HerWeigh |
What is HerWeigh?
HerWeigh is an iOS cycle-aware weight tracking app for women that overlays menstrual cycle phases onto weight logs, helping users understand natural hormonal water retention rather than stressing over daily scale fluctuations.
What is Happy Scale?
Happy Scale is a popular alternative in the health space. It provides a traditional set of features and tools, serving as a structured option for users seeking alternative workflows.
Feature Comparison
How HerWeigh and Happy Scale compare on the features that matter most.
| Feature | HerWeigh | Happy Scale |
|---|---|---|
| Menstrual cycle phase tracking | ||
| Hormonal water retention insights | ||
| Cycle-to-cycle comparison | ||
| Weight trend smoothing & moving averages | ||
| Apple Health integration | ||
| No ads & private on-device data |
Choose HerWeigh if…
If you want weight trend smoothing that understands women's hormonal cycles and demystifies pre-period scale jumps, choose HerWeigh.
Choose Happy Scale if…
If you only want basic mathematical moving averages and don't need menstrual cycle tracking, Happy Scale is a solid classic tool.
Pricing Comparison
Pricing plans and premium subscriptions vary over time and across different regions. Generally, apps in the health space offer a combination of free trials, basic features, and premium monthly or annual subscriptions. Check the respective App Store page for the most up-to-date details.
Which App Should You Choose?
Choose HerWeigh if:
If you want weight trend smoothing that understands women's hormonal cycles and demystifies pre-period scale jumps, choose HerWeigh.
Choose Happy Scale if:
If you only want basic mathematical moving averages and don't need menstrual cycle tracking, Happy Scale is a solid classic tool.
Frequently Asked Questions
Why do women gain weight right before their period?
During the luteal phase (the 7–14 days before your period starts), progesterone and estrogen levels surge and drop, triggering the release of aldosterone — a hormone that causes kidneys to retain sodium and water. It is completely normal for women to temporarily gain 2 to 5 pounds of water weight during this phase, which naturally sheds within a few days of menstruation starting.
How does HerWeigh help with pre-period weight gain?
HerWeigh overlays your menstrual cycle phases directly onto your weight charts. When the scale suddenly jumps 2 lbs in your luteal phase, HerWeigh contextualizes it as normal hormonal water retention rather than fat gain, saving you from unnecessary diet stress or restriction.
How is HerWeigh different from Happy Scale or MyFitnessPal?
Standard weight trackers like Happy Scale or MyFitnessPal treat every day in isolation or apply generic moving averages that ignore hormonal biology. HerWeigh is built specifically for women, combining trend-smoothing algorithms with cycle phase tracking so you can compare current weights against corresponding phases in previous cycles.
Can I sync HerWeigh with Apple Health?
Yes! HerWeigh offers full two-way synchronization with Apple HealthKit. You can automatically import your historical weigh-ins, smart scale measurements, and menstrual flow logs, keeping all your health data unified.
Do I need to count calories or log my meals?
No. HerWeigh is entirely free from calorie counting, food logging, and diet dogma. It is designed to be a peaceful, fast companion where logging takes less than 5 seconds a day.
Is my health and cycle data kept private?
Absolutely. HerWeigh stores your data locally on your device and in your private iCloud account. We do not use third-party analytics trackers, do not run ads, and never sell or share your personal health data.
Ready to try HerWeigh?
Download on the App Store to start enjoying a clean, focused experience.