# 活動量計HR vs FastLeaf

The clearest difference is in-app purchases: 活動量計HR at none against FastLeaf's 1. 活動量計HR also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). FastLeaf's advantage is update cadence (every 2 weeks vs monthly). On price and device support there is nothing between them.

Both are free to download. FastLeaf sells 1 one-off in-app purchase. 活動量計HR asks for nothing beyond the download.

活動量計HR ships an update monthly, FastLeaf every 2 weeks. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 活動量計HR | FastLeaf |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 34 MB | 96 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kashimura Co., Ltd.](https://appshunter.io/developer/1487400380) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### 活動量計HR

[App page](https://appshunter.io/ios/app/hr/id1487400381)

This app supports daily exercise with heart rate monitoring. It helps maintain motivation by showing step counts and goals at a glance. Data is recorded on the device, allowing for easy transfer and synchronization with your smartphone at home.

**Highlights:** Heart rate monitoring, Step tracking, Goal setting, Data synchronization, HealthKit integration

**In-app purchases:** none


### FastLeaf

[App page](https://appshunter.io/ios/app/fastleaf/id6792221245)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastLeaf Pro | $2.99 | one-time |


## Frequently asked questions

### Is 活動量計HR free?

活動量計HR is free to download, with no in-app purchases.

### Is FastLeaf free?

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

### Do 活動量計HR or FastLeaf have ads?

FastLeaf shows ads; 活動量計HR does not.

### Which is updated more often, 活動量計HR or FastLeaf?

活動量計HR ships an update monthly, and FastLeaf every 2 weeks. Most recently, 活動量計HR was updated on October 14, 2026 and FastLeaf on October 15, 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.*