For women who train

Training that follows the rhythm of your cycle, not against it.

Most training apps ignore that you have a menstrual cycle. Most cycle apps ignore that you train. UNDA does both.

Local-first · encrypted on device · never sold. See our privacy stance.

The problem

Phase-blind training fails women.

Same plan, wrong week

Your body is meaningfully different in the follicular vs. late-luteal phase. Training the same way in both is why some weeks feel effortless and others feel impossible.

Overtraining in the wrong window

Pushing hard when your HRV is down and PMS is loading isn't grit — it's a shortcut to injury and burnout.

Data lives in five apps

Strava, Intervals, Garmin, Apple Health, your cycle tracker. Nothing talks to anything. You do the mental math.

How UNDA helps

Personal, evidence-based, privacy-first.

Phase-aware readiness

Every day, UNDA looks at your phase, sleep, HRV, resting HR, recent load, and how you feel. It suggests a workout — and tells you when to swap for something lighter.

Sleep · HRV · Load · Phase → today's suggestion

Reads and writes to what you already use

Apple Health, Strava, Intervals.icu (Garmin next). UNDA imports your recent activities, pushes planned workouts back to your calendar, and dedupes across sources automatically.

Health · Strava · Intervals ↔ UNDA

A 2-week plan matched to how you actually train

Bulk-generate two weeks of workouts based on your phases, your typical weekly volume, and your rest cadence. Review day-by-day, push everything to Intervals in one tap.

Layered plan → Intervals.icu

Local-first, encrypted, exportable

Your data lives on your device by default, AES-256 encrypted at rest. Full export as a zip whenever you want. Delete everything in two taps. GDPR-native.

SQLCipher · Keychain · Export · Delete
Beta waitlist

Be one of the first to try it.

We're opening a small closed beta on TestFlight. Drop your email and a sentence about how you train — we're prioritising women who currently train with Strava, Intervals.icu, Garmin, or Apple Watch.