# Leg It! vs Impulse

The clearest difference is in-app purchases: Impulse at none against Leg It!'s 8. Leg It!'s advantage is ratings volume (6 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Leg It! sells 8 in-app purchases, starting at $3.99 per month. Impulse asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Leg It! against 5.0 for Impulse. That said, the two scores are not equally well evidenced: Leg It! has 6 ratings behind it against 1, so its average is the more settled of the two.

Leg It! ships an update weekly, Impulse every 4 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Leg It! | Impulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/leg-it/id6760376315/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/impulse-sprint-mechanics/id6786762191/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 162 MB | 60 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Lightwave Labs Limited Liability Company](https://appshunter.io/developer/1884190268) | [KEERTAN RAO SAWTELL](https://appshunter.io/developer/6786762193) |

## What reviewers say

### Leg It!

[App page](https://appshunter.io/ios/app/leg-it/id6760376315)

Track your sprint speed in real-time with GPS and receive personalized AI coaching. Compete in weekly tournaments, duels, and relays, and see your health improvements visualized on an anatomical body map. Earn rewards and unlock customizations as you progress.

**Highlights:** Real-time GPS sprint tracking, Phone-free Apple Watch app, AI-powered personalized coaching, Structured multi-sprint circuits, Weekly competitions and duels, Health impact visualization, Science-backed training programs

**Features:** Apple Watch app

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leg It! Pro Monthly | $3.99 | per month |
| Coach - Starter | $9.99 | per month |
| Coach Team | $24.99 | per month |
| Leg It! Pro | $34.99 | per year |
| Coach Program | $49.99 | per month |
| Extra Attempts | $0.99 | one-time |
| +1 Sprint Attempt | $0.99 | one-time |
| Leg It! Pro | $79.99 | one-time |


### Impulse

[App page](https://appshunter.io/ios/app/impulse-sprint-mechanics/id6786762191)

Analyze your sprint acceleration with detailed mechanics. Film your first few steps in slow motion to get insights on shin angle, ground contact time, and flight time without specialized equipment.

**Highlights:** Shin angle at ground contact, Ground contact time, Flight time per step, Calculated speed per step, Session history tracking, Mechanics correlation with speed

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Leg It! free?

Leg It! is free to download, with in-app purchases available.

### Is Impulse free?

Impulse is free to download, with no in-app purchases.

### Which has better reviews, Leg It! or Impulse?

Leg It! and Impulse are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do Leg It! or Impulse have ads?

Neither Leg It! nor Impulse shows ads.

### Which is updated more often, Leg It! or Impulse?

Leg It! ships an update weekly, and Impulse every 4 days. Most recently, Leg It! was updated on October 13, 2026 and Impulse on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*