sextant
The read, for runners.

Your runs, read straight.

You screenshot your run into ChatGPT. It only reads snapshots. Sextant reads the whole run, and shows you the data behind every line.

Long run · 10 mi
You faded at mile 8. Form, not fitness.
Your cadence dropped 6% and your stride shortened. Your heart rate still had room. Your legs gave out before your engine.
CadenceHeart rate
Your heart rate still had room. Your cadence didn't.

Free when the beta opens. Coming to the App Store.

Not another chatbot

Most running AI guesses. Sextant reads.

Point an AI at a screenshot and it fills in the blanks. Sextant reads the real run, and only says what the data backs.

01
The read

Reads the whole run

Not a snapshot. The actual run. Every split, your heart rate against your thresholds, the heat, the drift. It tells you what it means.

a photo of your splits→the whole run
02
Grounded

Shows the receipt

It only says what your data backs. Every claim comes with the data behind it. Tap it, check it yourself.

confident guesses→claims you can check
03
Your own AI

Hand it your real run

Point ChatGPT or Claude at the actual run, not a snapshot. Now it can back what it says. No new subscription.

a snapshot to guess at→the real run to reason on
The read, shown

This is what “read straight” looks like.

One run. A verdict, and the data behind every word of it.

Long run · 10 mi
You faded at mile 8. Form, not fitness.
Your cadence dropped 6% and your stride shortened. Your heart rate still had room. Your legs gave out before your engine.
CadenceHeart rate
Your heart rate still had room. Your cadence didn't.
Every line is from your run. Tap to see it.
A look inside

See it on your own runs.

Every run gets a read. Verdict, then the receipt.

Every run gets a read. Verdict, then the receipt.

Ask it anything. It answers from your runs, not the internet.

Ask it anything. It answers from your runs, not the internet.

Your whole block, in one view.

Your whole block, in one view.

Know what to run today.

Know what to run today.

Pricing

The read is free. The coach is the upgrade.

Free
$0
The read, on every run.
  • A read on every run
  • Your recent runs and all-time PRs
  • Export to the AI you already use
Most popular
Coach
~$6/mo
Your assistant coach.
  • Everything in Free
  • Talk to it about any run, any time
  • Your whole history, and memory across months
  • Import your plan. Every run read against it.
  • A second pair of eyes that makes you sharper
Coach Pro
~$9-11/mo
The coach that comes to you.
  • Everything in Coach
  • More back-and-forth, deeper reads
  • Proactive check-ins. It reaches out first.
Questions
Is this just ChatGPT for my runs?
No. ChatGPT reads a screenshot and fills in the blanks. Sextant reads the actual run and only says what your data backs. Every claim shows the data behind it.
How do I know the read is right?
It shows its work. Every line links to the number it came from. Tap it, check it. No data behind a claim, no claim.
Do I need a chest strap?
No, your watch works. A chest strap gives it more to read, so the read gets sharper.
Does it replace my coach?
No. It is a second pair of eyes. Solo, it is the read you would pay a coach for. With a coach, it reads every run against their plan.
Can I use my own AI?
Yes, free. Sextant hands ChatGPT or Claude the real run, not a screenshot. No new subscription.
What is free?
The read, on every run. Recent runs, all-time PRs, export to your own AI. The coach is the paid upgrade.
What about my data?
Never sold. Never used to train models. Export or delete it anytime.

Stop screenshotting. Start reading.

The read is free, on every run. Get it on your next one.

Coming to the App Store.