# HARD vs Bubble

The clearest difference is update cadence: Bubble at every 4 days against HARD's fortnightly. HARD's advantage is iOS requirement (11.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HARD ships an update fortnightly, Bubble every 4 days. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | HARD | Bubble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/hard/id1475606673/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 13.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 181 MB | 43 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Qianhai Walnut Technology Co.,Ltd](https://appshunter.io/developer/1294078241) | [天韵 张](https://appshunter.io/developer/1874475495) |

## What reviewers say

### HARD

[App page](https://appshunter.io/ios/app/hard/id1475606673)

This app syncs with smart devices to track daily activity like steps, distance, and calories. It also monitors heart rate, sleep patterns, and records exercise routes. Receive reminders for messages, alarms, and hydration.

**Highlights:** Activity tracking (steps, distance, calories), Exercise recording with GPS tracking, Heart rate monitoring and analysis, Sleep pattern analysis, Message and reminder notifications, HealthKit integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubble

[App page](https://appshunter.io/ios/app/bubble-and/id6774240818)

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

**In-app purchases:** none


## Frequently asked questions

### Is HARD free?

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

### Is Bubble free?

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

### Do HARD or Bubble have ads?

Neither HARD nor Bubble shows ads.

### Which is updated more often, HARD or Bubble?

HARD ships an update fortnightly, and Bubble every 4 days. Most recently, HARD was updated on October 14, 2026 and Bubble on September 25, 2026.

---

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