Give each weigh-in some perspective. See an estimated trend, inspect the readings behind it, and understand longer changes. Now completely free, with no purchases.
A scale gives you a measurement. Depthline helps you understand the pattern across measurements.
See your recent weight trend beside the actual daily readings. The trend is a smoothed estimate, clearly distinguished from your latest measurement. Sparse histories and gaps stay visible. Weight loss, maintenance and gain are described without scores or judgment.
SEE THE PATTERN
• Connect Apple Health Body Weight or log manually.
• See your estimated trend on a dated chart with weight axes.
• Inspect individual reading days and how multiple readings are combined.
• Choose an optional target or range, or simply observe.
• Check coverage, source differences and how the estimate is calculated.
EXPLORE YOUR HISTORY
Inspect 30 days, 90 days, one year or all your history. Compare dated estimates when the readings support them. Missing days stay missing, and long gaps visibly restart the estimate.
KEEP YOUR RECORDS
Unlimited manual records, your complete Log, editing and deletion of app-owned readings, CSV export, widgets and Shortcuts are included. Imported Health readings retain their source and stay read-only in Depthline. Depthline never writes to Apple Health.
AN OPTIONAL VOYAGE
Explore an illustrated perspective on your history with every range and vessel style included. Voyage is symbolic; History provides the dated weight chart and supported comparisons.
COMPLETELY FREE
Every feature is included. No upgrade, in-app purchase or subscription. Previous Depthline Plus purchasers keep all their features without another payment or a restore step. Your saved readings and settings remain intact when you update.
PRIVATE BY DESIGN
No account, advertising or third-party analytics. Your readings remain on your device. Apple Health access is optional.
Depthline describes recorded weight and an estimate. It does not measure fat loss, explain the medical cause of a change, or provide medical advice.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
Depthline is now completely free, with a clearer view of your weight history.
• A focused Trend screen separates your latest measurement from the smoothed estimate.
• Explore 30 days, 90 days, one year and all-time History, with dated comparisons when your readings support them.
• Estimates stay consistent across chart ranges, and gaps remain visible.
• Review source differences and how multiple readings are combined.
• Keep every reading in the simpler Log, with quick manual entry and CSV export.
• Enjoy every optional Voyage range and vessel style without a purchase.
Existing Plus purchasers keep all their features. Your saved readings and settings remain intact. Improved estimation may change calculated trends; your original measurements are unchanged.
Version 1.4
The developer, Jeromy Seth Mobley, 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 Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Differentiate Without Color Alone
Reduced Motion
Information
Seller
Jeromy Seth Mobley
Size
10.2 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.