# RiversongFit Act vs Amber Pulse

The clearest difference is update cadence: RiversongFit Act at every 3 weeks against Amber Pulse's every 2 months. 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.

RiversongFit Act ships an update every 3 weeks, Amber Pulse every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | RiversongFit Act | Amber Pulse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 227 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [RIVERSONG TECHNOLOGY CO., LTD](https://appshunter.io/developer/1209933497) | [Amber Clinics](https://appshunter.io/developer/1751879122) |

## What reviewers say

### RiversongFit Act

[App page](https://appshunter.io/ios/app/riversongfit-act/id1638326686)

**In-app purchases:** none


### Amber Pulse

[App page](https://appshunter.io/ios/app/amber-pulse/id6504474921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RiversongFit Act free?

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

### Is Amber Pulse free?

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

### Do RiversongFit Act or Amber Pulse have ads?

Neither RiversongFit Act nor Amber Pulse shows ads.

### Which is updated more often, RiversongFit Act or Amber Pulse?

RiversongFit Act ships an update every 3 weeks, and Amber Pulse every 2 months. Most recently, RiversongFit Act was updated on October 14, 2026 and Amber Pulse on October 19, 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.*