Weight Tracker - Trendcurve
Weight loss trend, BMI & log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your weight moves from day to day by two or three pounds: water, salt, meals, sleep. That movement is larger than the progress you are looking for. Trendcurve takes it out and shows you the trend underneath, and the date you will reach your goal.
FOUR TABS, EACH WITH ONE JOB
• Today: your trend and today's entries at a glance
• Goal: forecast, milestones and, in maintain mode, your corridor
• Analysis: experiments, patterns, balance, calorie budget and body values
• History: every measurement with chart and trend line
• Drag cards into your order, hide what you don't need
WHAT TRENDCURVE SHOWS
• Trend weight: the smoothed line instead of today's reading, and you pick the method (exponential, 7 or 14 days, double exponential)
• 7-day change and weekly rate, so you can see where things are really heading
• Target rate: planned against measured, with a warning when it gets too fast
• Goal with progress: lose, gain or maintain, all three built out equally
EXPERIMENTS
Try a change for a few weeks, for example no alcohol or 16:8. With Pro, Trendcurve compares your weekly rate before, during and after. The numbers show a connection, not a cause.
MEDICATION TRACKING
If you are on a weekly medication, for example a GLP-1 therapy, every dose change appears as a marker in your history, and a reminder on your injection day lets you check it off. Label and dose stay on your device. Trendcurve gives no recommendations.
MAINTAIN WITH A CORRIDOR
Reached your goal? Set a corridor around your goal weight as wide as you like. The band in the chart and the status show whether your trend stays inside.
LOGGING WITHOUT EFFORT
• Log your weight in seconds, several values a day if you like
• Kilograms, pounds or stones, height and body measurements in centimeters or feet and inches
• Apple Health both ways: read in the background, and written back when you want it
• Ignore outliers: they stay visible but do not count for the trend
• Daily reminder that stays quiet once you have weighed in today
• Share your trend and milestones as an image, free for everyone
• Widgets for home and lock screen, dark mode, ten languages
YOUR DATA STAYS WITH YOU
No account, no ads. Your weight and health data live on your device. Export as CSV and JSON at any time, import from Happy Scale, Libra, openScale and Excel.
TRENDCURVE PRO
Logging, trend, units, history, Apple Health, target rate, reminder, export and sharing stay free, as do experiments and markers, medication tracking with dose markers and weekly reminder, and the corridor band and status. Pro additionally unlocks:
• Forecast with target date and an honest range, plus the forecast chart
• Calorie budget from your trend: maintenance, balance and the budget for your target rate
• Patterns: plateau detection with an explanation and weekday patterns
• Experiment results: weekly rate before, during and after, with a result to share
• Weekly rate per dose step, corridor history and early warning
• Milestones with celebrations
• Balance over 7, 30 and 90 days and monthly reports
• Body measurements: waist, hips, chest, body fat
• Progress photos with before and after comparison
• Trend restart and chart ranges of one year and longer, also when sharing
• Automatic iCloud backup, large widgets, multiple reminders with streak protection
Trendcurve Pro is available as a monthly subscription ($1.99), a yearly subscription ($11.99 with a 7-day free trial) or a one-time purchase ($29.99). Prices may vary by country. Subscriptions renew automatically at the same price unless cancelled at least 24 hours before the end of the current period. You manage them in your Apple ID settings.
NOTE
Trendcurve is not a medical device and gives no medical advice. The app records and calculates; it does not interpret. The calorie budget is an estimate based on your own entries and values.
Privacy policy: https://trendcurve.app/en/privacy
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New in Trendcurve 1.7.0:
• Share to Instagram and more: Share images are now in portrait format and go straight to your Instagram Story with one tap. Pick from several layouts, choose whether your weight is shown, or save the image to Photos.
• More to share: Share your monthly recap, your progress toward your goal and your before and after photos.
The developer, Johannes Müller, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Johannes Muller
- Size
- 84.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, Danish, Dutch, French, German, Italian, Norwegian Bokmål, Portuguese, Spanish, Swedish
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Trendcurve Pro Yearly $11.99
- Trendcurve Pro Lifetime $29.99
- Trendcurve Pro Monthly $1.99
- Copyright
- © 2026 Johannes Müller