# HeartOxy vs UpDown

The clearest difference is price: UpDown at Free against HeartOxy's $3.99. HeartOxy's advantage is update cadence (every 3 days vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

UpDown is free to download; HeartOxy costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HeartOxy ships an update every 3 days, UpDown every 3 months. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | HeartOxy | UpDown |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/updown-smart-squat-tracking/id6760248835/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | — | Free |
| Size | 7 MB | 2 MB |
| Requires iOS | **16.0** | 17.3 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Boon Piow Leong](https://appshunter.io/developer/1869053126) | [Jang Chang Hee](https://appshunter.io/developer/1755828096) |

## What reviewers say

### HeartOxy

[App page](https://appshunter.io/ios/app/heartoxy/id6757838240)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### UpDown

[App page](https://appshunter.io/ios/app/updown-smart-squat-tracking/id6760248835)

This app automatically counts your squats using your iPhone and Apple Watch's motion sensors. It helps you build a daily squat habit with goal rings, streaks, and workout summaries. Customize your tempo and receive haptic feedback for set goals.

**Highlights:** Automatic rep tracking, Daily squat goals and streaks, Apple Watch integration, Customizable squat tempo, Workout history and summaries, Haptic feedback for set goals

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HeartOxy free?

HeartOxy costs $3.99, with no in-app purchases.

### Is UpDown free?

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

### Do HeartOxy or UpDown have ads?

Neither HeartOxy nor UpDown shows ads.

### Which is updated more often, HeartOxy or UpDown?

HeartOxy ships an update every 3 days, and UpDown every 3 months. Most recently, HeartOxy was updated on October 9, 2026 and UpDown on October 10, 2026.

---

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