# Pitter Patter App vs ECG Audio

The clearest difference is in-app purchases: Pitter Patter App at none against ECG Audio's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ECG Audio sells 1 one-off in-app purchase. Pitter Patter App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Pitter Patter App | ECG Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (20 ratings)](https://appshunter.io/ios/app/pitter-patter-app/id1320923146/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 57 MB | 21 MB |
| Requires iOS | **11.3** | 12.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Urban Emu Design, LLC](https://appshunter.io/developer/1320923145) | [Nordavind](https://appshunter.io/developer/637520063) |

## What reviewers say

### Pitter Patter App

[App page](https://appshunter.io/ios/app/pitter-patter-app/id1320923146)

Connect with loved ones by sharing live heartbeats through Apple Watches. Experience real-time haptic feedback and pulse animations to feel closer, whether during workouts, family check-ins, or online interactions.

**Highlights:** Live heartlink sessions, One-to-one heartlinking, Stream heartbeat live, Haptic feedback, Pulse animations, Health app integration

**In-app purchases:** none


### ECG Audio

[App page](https://appshunter.io/ios/app/ecg-audio/id1541142830)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full app version | $0.99 | one-time |


## Frequently asked questions

### Is Pitter Patter App free?

Pitter Patter App is free to download, with no in-app purchases.

### Is ECG Audio free?

ECG Audio is free to download, with in-app purchases available.

### Do Pitter Patter App or ECG Audio have ads?

Neither Pitter Patter App nor ECG Audio shows ads.

### Which is updated more often, Pitter Patter App or ECG Audio?

Pitter Patter App ships an update every 2 months, and ECG Audio every 2 months. Most recently, Pitter Patter App was updated on November 6, 2026 and ECG Audio on November 3, 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.*