Kasi

Name: Kasi
Brand: Kasi

Real-time audio run coaching from an AI or remote human coach, mid-workout

softwareFitness Trackingrunningai-coachingreal-time-feedback

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Our Verdict

Best for

Runners who want live audio coaching during workouts instead of just a static plan

Skip if

You only need basic run tracking without in-workout coaching

What is Kasi?

Kasi is a running coaching app that delivers real-time audio coaching during a workout, rather than just handing runners a static plan to follow alone. Users can choose an AI-powered coach or a remote human coach who observes biometric data live and speaks instructions into the runner's ear as the workout unfolds, aiming to teach technique and pacing in the moment rather than only after the fact. Runners enter a recent race time and the app calculates target paces for different workout types, then adjusts guidance in real time. Training programs cover distances from 5K through marathon, along with menstrual-cycle-aware training and runner-specific strength work. The brand name comes from the Swahili word for speed.

SpecificationsAI-estimated

deploymentMobile App

open source❌ No

api available❌ No

support optionsIn-app support, human coaching tier

Key Features of Kasi

Delivers live audio coaching during a run rather than only a pre-built static plan.

Lets athletes choose between an AI coach or a remote human coach observing biometrics live.

Calculates target paces from a recent race time for workouts spanning 5K to marathon distance.

Adjusts pace targets over time as performance data comes in.

Includes menstrual-cycle-aware training options.

Offers runner-specific strength training programming alongside running plans.

Use Cases for Kasi

Marathon or half-marathon training

Follow a structured plan with live pacing feedback for race-distance training.

In-workout technique coaching

Get real-time audio cues on pacing and form during a run rather than reviewing data afterward.

Working with a remote coach

Have a human coach observe live biometrics and coach verbally during workouts.

Cycle-aware training

Adjust training intensity around menstrual cycle phases using built-in program options.

Pros & Cons of Kasi

Pros

Real-time in-ear coaching is a distinct approach versus static plan apps
Option to use an actual remote human coach, not just AI
Training plans cover a full range of distances
Free trial available before committing

Cons

Subscription cost adds up compared to free running trackers
Human coach tier is priced separately and higher
Newer entrant competing against more established running-coach apps
Android availability isn't clearly confirmed on the homepage

Frequently Asked Questions

What makes Kasi different from other running apps?

It delivers real-time audio coaching during the run itself, from either an AI coach or a remote human coach.

How much does Kasi cost?

$9.99 per month billed monthly, or a discounted rate of $6.99 per month on a 6-month plan, both with a 2-week free trial.

Can I get a real human coach?

Yes, Kasi offers remote coaching from human coaches who observe biometrics and coach live, in addition to its AI coach.

How does Kasi set my pace targets?

Users enter a recent race time and Kasi calculates paces for each workout type.

Pricing Overview

View full pricing →

Paid (Subscription)

Monthly

$9.99

6-Month

$6.99

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