Splyt Try free preview

See what your training is neglecting.

Splyt analyses your workout history to flag potential muscle imbalances, neglected areas and how your training changes over time.

Works with

Hevy More apps coming soon
Try free preview See how it works

Your training, actually analysed 📈

Already logging workouts in Hevy? Splyt turns that history into balance breakdowns, trends and potential gaps you'd otherwise have to spot manually.

Splyt

Hi, Alex

Score over time

4-week rolling avg

050100JanFebMarAprMayJunJulAugNow

Balance analysis

30 days90 daysAll time

Muscle Balance Score

100

Great balance

Last 30 days · 4 workouts

Horizontal Push/Pull Balanced
Push · 4.7k kg·reps Pull · 6.5k kg·reps
Vertical Push/Pull Balanced
Push · 2.0k kg·reps Pull · 2.8k kg·reps
Quad / Posterior Balanced
Quads · 8.1k kg·reps Posterior · 6.6k kg·reps

Volume by muscle group

Horiz. Pull
6.5k
Quads
8.1k
Posterior
6.6k
Vert. Pull
2.8k
Horiz. Push
4.7k
Vert. Push
2.0k
Core
1.2k

What Splyt shows you

The things that are genuinely useful to know about your training but tedious to work out manually.

Push / pull balance

See whether your pressing and pulling volume are actually in proportion, horizontally and vertically.

Quad / posterior chain

Compare knee-dominant and hip-dominant leg work to catch common anterior chain bias.

Movement distribution

See where your training volume is going across each movement pattern.

Balance score

A single 0–100 score summarising how well your push/pull and anterior/posterior ratios sit within reasonable training ranges.

Score over time

A rolling 4-week chart shows whether your balance is improving, drifting, or holding steady.

Imbalance flags

When a ratio falls outside a reasonable range, Splyt surfaces it with a plain-language suggestion.

How it works

Three steps.

1

Connect your Hevy account

Go to hevy.com/settings?developer, copy your API key and paste it into Splyt. Requires Hevy Pro.

CSV import for free Hevy users is coming in the next version.

2

Splyt analyses them

Your training is grouped and compared across useful movement patterns.

3

Spot the gaps

See your balance, trends and areas you may be neglecting.

New insights and features land directly in your dashboard. Splyt learns from your workout history over time, and every improvement ships straight to you.

Setup demo 🎬

From sign-in to your first insight in a couple of minutes.

* Setup should be no more than a few minutes depending on how many workouts you have. Splyt will show you how many have loaded. After the first sync, future syncs are much faster.

Early access

One payment. Lifetime access.

Early access · limited spots

£25 one-off

Lifetime access. All future updates included.

What you get today

  • Muscle and movement balance analysis
  • Push vs pull comparisons (horizontal & vertical)
  • Quad vs posterior chain comparison
  • Overall balance score (0–100)
  • Historical balance chart with 4-week rolling average
  • Imbalance flags with suggestions
  • Hevy API sync (requires Hevy Pro)

Splyt currently relies on Hevy's API for workout data. Changes to Hevy's API may affect syncing in future.

What's coming 🏋️‍♀️

Early access includes all of these as they ship.

Hevy CSV import

Up next

Upload a Hevy CSV export so free users can access Splyt without a Pro subscription.

Smarter balance scoring

Balance scoring will account for secondary muscle recruitment alongside primary muscles, so compound lifts contribute more accurately to your overall picture.

Deeper training trends

See how your volume and balance evolve over weeks and months.

Actionable insights

Understand what is driving an imbalance and what you may want to adjust.

Notifications

Get alerted via email when your balance score changes significantly or a new imbalance is flagged.

More workout apps

Import training from more trackers and data sources beyond Hevy.

Automatic background sync

Your dashboard updates daily without you needing to trigger a sync. Open Splyt and your latest workouts are already there.

Splyt is built by gym rats, for gym rats. We want deeper analytics than any app currently offers. Got a feature you'd love to see? Let us know. What you ask for shapes what we build next.

Meet the founder

"After almost 500 workouts in Hevy, I still had no easy way to see whether my training was actually balanced. Working it out manually sounded awful, so I built Splyt.

The goal is simple: turn workout data into insights that actually help lifters train better."

— Shaz

FAQ