TrendFit
See your trend for any workout, any metric — in an instant.
v2.0 on the App Store
Your workouts.
Your trends.
No guessing.
Your data knows. Now you will too.
- Actual trend intelligence — regression lines that tell you if you're improving, plateauing, or sliding across any workout or metric
- Challenges built in — set a goal, watch progress build in real time, and get nudged — all on your device
- Routes you repeat — TrendFit matches outdoor workouts that followed the same GPS path and shows whether you're getting faster on it
- Every metric, every sport — distance, pace, heart rate, energy, speed, cadence, and more
- Private by design — HealthKit data analyzed entirely on your iPhone; no servers, no accounts, nothing leaves your phone
Track. Analyze. Improve.
Understand your fitness trends with interactive charts and on-device analysis.
Now on the App Store
TrendFit 2.0 is here
Version 2.0 adds TrendFitGroup — route-matched trends for the loops you run again and again — plus Compare Years in TrendFitStack, three-year chart ranges, and the largest accessibility pass the app has had. It is a free update for everyone on 1.5.
Requires iOS 18.0 or later. Feedback goes to [email protected].
TrendFitStack
Your week vs. your year. One sport vs. another. See it all at a glance.
TrendFitGroup
New in 2.0Run the same loop twice and TrendFit knows. See whether you're getting faster on it.
TrendFitChallenge
Set a goal, track every step, and celebrate — all on your device.
Compare Years
New in 2.0Two Januaries land on the same point. A seasonal dip stops looking like a decline.
Privacy-First
Your data never leaves your phone. All analysis happens on-device using Apple HealthKit. No servers. No tracking. No ads.
Instant Clarity
Open the app, see your trend. No menus, no setup, no guessing.
Zoomable Charts
Explore every detail, at any scale.
- Pinch to zoom into any date range
- Pan through weeks, months, or seasons
- Double-tap to reset to full view
- Long-press any point to reveal the exact value
Challenge Notifications
Progress updates, on your schedule — never leaves your device.
- Turn on Challenge Updates in Settings → App Settings
- Pick the cadence: daily, every 3 days, weekly, or a custom interval
- Updates arrive at 9:00 AM with the day count and the metric
- Each one says whether you are ahead, on track, or behind pace
- A closing note when the challenge ends, against the target you set
- Composed and scheduled by your iPhone — nothing is sent anywhere