Identify the single change most likely to extend your life.

Add Months analyzes your lifestyle and shows your Dominant Challenge — the factor with the greatest potential impact on your lifespan.

How It Works
App Screenshot
Click to join beta

How It Works

1

Enter your baseline.

Age, health status, and core lifestyle factors.

2

Analyze your exposures.

The app models conservative lifespan impacts using established population data.

3

See your Dominant Challenge.

The single change with the largest potential gain — right now.

Add Months is:

  • A clarity tool.
  • Private and local.
  • Based on population-level risk modeling.
  • Designed for re-evaluation over time.

Add Months is not:

  • Medical advice.
  • A habit tracker.
  • A social network.
  • A coaching app.
  • A data collection platform.

Your data never leaves your device.

No accounts required No analytics No ads, ever Encrypted local storage Hard delete = permanent

We cannot see your inputs. We do not collect or sell behavioral data.

Built for Clarity

Most health apps try to optimize everything. Add Months identifies the one lever that matters most — so you can focus your effort where it counts.

Re-run whenever your life changes.

Get Early Access

Join the beta to be among the first to try Add Months.

Join the
iOS Beta
Join the
Android Beta