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A/B Test Workout Conditions to Boost Your Performance

Understand why your workout felt certain way with our data driven fitness experimentation.

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Mobile app screen showing an A/B test for outdoor run categories comparing pre-exercise fuel options like Banana, Power bar, Dates, and in-exercise fuel running shoes Adizero Evo SL, New Balance Rebel V5, and Adizero Boston 13 with session counts and rating scores.

You log and track your workout — but do you know:

🍌 What you ate before your best high intensity interval training?

👟 If certain shoes lead to soreness?

🛌 How your sleep affect your performance?

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A/B Test

Create different tests with multiple conditions to compare the performance of an exercise of your choice.

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Rate your sessions

After completing each exercise session under a specific condition, record your performance for that condition.

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Analyze workout conditions

Filter by exercise and condition category to see the conditions ranked by their performance.

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Ranked insights

Get a clear verdict, showing you exactly which factor consistently boosts your performance versus those that hinder it.

Pricing

Core

$3.99 / month

Enjoy core A/B testing and Analysis features

  1. A/B Tests: up to 5 active tests + unlimited inactive (archived) tests.
  2. Analysis: unlimited condition impacted exercise ranking insights.
  3. Sessions: unlimited test session logging.
  4. Exercise modules: up to 50 active exercise modules + unlimited inactive (archived) exercise modules.
  5. Condition modules: up to 50 active condition modules + unlimited inactive (archived) condition modules.

Frequently Asked Questions (FAQs)

How does Calowit work?

Calowit is a data-driven experimental app designed to help you A/B test your own body to discover the exact conditions that maximize your workout performance and results. We turn your training routine into a constant, data-driven experiment.

The process follows a simple, repeatable cycle:

🧪 Design the A/B Test
You choose an exercise (e.g., Bench Press) and define two or three Conditions you want to test against it. For example:

  1. Condition A: Pre-workout meal (High Carb)
  2. Condition B: Pre-workout meal (No Carb)
  3. Condition C: Pre-workout meal (Fasted)

📝 Log & Rate Sessions
You perform your planned workout sessions and log your results. After each session, you rate your performance for that specific Condition. This logging process allows the data to pile up over time.

📊 Get Ranked Insights
Once enough data is collected, Calowit analyzes the logs based on the exercise (e.g., Bench Press) and condition category (e.g., 'Pre-Workout Fuel').

  1. The system then ranks your conditions from best to worst performance.
  2. This delivers a clear verdict, showing you exactly which factor (e.g., High Carb) consistently boosts your performance (e.g., your maximum weight or reps) versus those that hinder it.

In short: Calowit replaces guesswork with personalized, data-backed evidence so you can reliably apply the best conditions to crush your next personal record.

How much does it cost to use Calowit?

Calowit Core subscription cost is US$3.99 per month. With Calowit subscription you will be able to access

  • A/B tests: up to 5 active tests + unlimited inactive (archived) tests.
  • Exercise modules: up to 50 active exercise modules + unlimited inactive (archived) exercise modules.
  • Condition modules: up to 50 active condition modules + unlimited inactive (archived) condition modules.
  • Unlimited test session logging to document how you felt during a workout.
  • Ranking insights to show you which factors boost your performance versus hindering it.

What are exercise and condition modules?

Calowit Core subscription cost is US$3.99 per month. With Calowit subscription you will be able to access

  • A/B tests: up to 5 active tests + unlimited inactive (archived) tests.
  • Exercise modules: up to 50 active exercise modules + unlimited inactive (archived) exercise modules.
  • Condition modules: up to 50 active condition modules + unlimited inactive (archived) condition modules.
  • Unlimited test session logging.
  • Ranking insights

Do you offer a free trial?

At this time, Calowit does not offer a free trial. We are intentionally keeping our user base focused on individuals who genuinely need the product, allowing us to deliver deeply personalized support and rapidly incorporate high-value feedback. We are committed to building the best possible service alongside our dedicated early users.

What payment methods do you offer?

Subscription payments are currently processed through the App Store In-App Purchase (IAP) or Google Play's Billing Systems, depending on your mobile device platform. Stripe integration is coming soon to expand acceptance to include credit/debit cards, Apple Pay, and Google Pay.

Stop guessing. Start knowing.

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