# Heartio: Heart Rate Awareness — Guess your heart rate daily!

> Develop body awareness by guessing your heart rate and tracking your accuracy. (iPhone/iPad app by Elliot Myhre.)

- Source: https://appshunter.io/ios/app/heartio-heart-rate-awareness/id6760575495 (this page in markdown: same URL + `.md`)
- Developer: [Elliot Myhre](https://appshunter.io/developer/545280601)
- Category: Health & Fitness, Games
- Price: Free with in-app purchases
- Rating: 5.00/5 from 6 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 17.0 · 65 MB
- Languages: American English
- Released: 2026-08-03
- Data updated: 2026-10-31
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/heartio-heart-rate-awareness/id6760575495/reviews.md

## What is Heartio?

Most people have no idea what their heart is doing right now. Heartio turns finding out into a 30-second daily habit.

GUESS BEFORE YOU LOOK
Feel for your heart rate, lock in a guess, and let your Apple Watch reveal the real number. The closer you get, the better you're listening to your own body.

THREE WAYS TO PLAY

Live: guess your heart rate right now
Workout: predict your peak and average before you check
Sleep: guess how low your heart went overnight

BUILD YOUR ATTUNE SCORE
Attune is a 0 to 100 measure of how well you know your own heart, built from your accuracy over time. Guess well and it climbs. Skip days and it fades. Very few people will ever see 100.

KEEP THE STREAK ALIVE
Daily play builds a streak, and Lifelines protect it when life gets in the way.

TRAIN IT
Guided Attune sessions are short, calm heartbeat-counting exercises based on a protocol researchers have used for decades to study body awareness.

HEARTIO PLUS
The daily game is free, forever. Heartio Plus unlocks your full Attune score and history, guided sessions, deep insights, the monthly Heart Report, and the Retro theme. Each plan includes a 7-day free trial. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in Settings.

A COUPLE OF THINGS TO KNOW

Live guessing needs an Apple Watch. That's where the reading comes from.
Heartio measures awareness, not health. It is not a medical device and does not diagnose, treat, or monitor any condition.

Heartio is built by one person, who started guessing his own heart rate after a diagnosis changed how he felt about the number.

Privacy Policy: https://heartio.app/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Guess heart rate before checking
- Attune score to measure body awareness
- Daily streaks and lifelines
- Live, Workout, and Sleep modes
- Guided Attune sessions
- Track progress over time

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Heartio Plus | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Retro | $4.99 | one-time |
| Scrapbook | $4.99 | one-time |
| Pop | $4.99 | one-time |
| Daylight | $4.99 | one-time |
| Denim | $4.99 | one-time |
| Varsity | $4.99 | one-time |
| Denim | $4.99 | one-time |
| Tide | $4.99 | one-time |
| Gazette | $4.99 | one-time |


## Is Heartio safe?

Not enough ratings yet to assess Heartio.

## Is Heartio legit?

Heartio: Heart Rate Awareness has limited verification signals. The AppsHunter Legitimacy Score for Heartio is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/heartio-heart-rate-awareness/id6760575495/reviews.md

### 5/5 — Great health app

*2026-08-04*

Very user-friendly and clever app that gets you engaged in daily cardiovascular health!

### 5/5 — Helpful for exercising!

*2026-08-03*

Great app to get better at understanding my own heart rate during exercise.

## Frequently asked questions about Heartio

### Does Heartio have ads?

Heartio does not contain advertisements. The core daily game is free to play, with an optional subscription for advanced features.

### What devices does Heartio support?

Heartio is available on iPhone and Apple Watch. Live guessing specifically requires an Apple Watch to act as the referee.

### How accurate is Heartio?

Heartio measures your awareness of your heart rate, not its medical accuracy. The app helps you improve your ability to sense your own heartbeat, with a 5.0-star rating from 4 reviews.

### What is the Attune score in Heartio?

The Attune score is a 0-100 measure of how well you know your own heart, built from your accuracy over time. Guessing well increases your score, while skipping days causes it to fade.

### How do I cancel my Heartio Plus subscription?

Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. You can manage or cancel your subscription anytime in the app's Settings.

### Is Heartio a medical device?

No, Heartio is not a medical device. It measures awareness, not health, and does not diagnose, treat, or monitor any medical condition.

### How often is Heartio updated?

Heartio was last updated on August 3, 2026, with version 1.1. The app was released on August 3, 2026.

### What are the Heartio Plus subscription details?

Heartio Plus unlocks your full Attune score and history, guided sessions, deep insights, unlimited history, the monthly Heart Report, and the Retro theme. It includes a 7-day free trial and costs $3.99 per month.

## Version history (last 5 releases)

### 1.1.4 — 2026-08-26

A smarter Insights tab. Your Accuracy trend now lives at the top of Insights in every theme. Tap any day's bar to jump straight into that day's details, or press and hold to scrub across the week. The trend line below scrubs too.
Sleep guesses grew up. The sleep result screen now shows last night's chart with your guesses on it, just like workouts.
Feels better everywhere. Tapping a tab again takes you back to the top, Ember's Lifelines heart beats again, and dozens of small copy touch-ups.

### 1.1.3 — 2026-08-13

New: Jackpot celebrations. Nail both halves of a workout or sleep guess and Heartio now throws you the biggest moment in the app. A DOUBLE PERFECT takes over the whole screen. A perfect plus a great earns its own PERFECTLY GREAT moment. Every theme celebrates in its own style.
Also fixed: the 7 day Attune chart now breathes properly at the top, and works better with larger text sizes.

### 1.1.2 — 2026-08-11

Your guesses now tell their whole story. Tap any scored workout or sleep guess to see the full heart rate chart, your guess lines drawn right on it, and a marker where your call met reality.

Press and drag on any chart to inspect every reading, now on Insights and guess details too.

Hearts beat like hearts again. The classic lub-dub rhythm is back on every theme, on iPhone and Apple Watch.

Plus theme polish, better Reduce Motion support, and under-the-hood hardening.

### 1.1.1 — 2026-08-09

This one's a polish pass on last week's theme update.

New: match your app icon to your theme. Own a theme (or have Plus) and you can set its icon right from the theme picker.

Your watch now tells you up front if heart rate access is turned off, with steps to fix it, instead of leaving you waiting on the reading screen.

Practice guesses past your daily counted limit are clearly marked in the Guesses tab now, and your watch gives you a heads up on the first one each day.

Also fixed: the paywall could name the wrong theme, and the app sometimes asked you to pair your watch on a cold morning open when it was already paired. Plus small visual tuning across all ten themes.

### 1.1 — 2026-08-03

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*