# Kubios HRV vs Timber

The clearest difference is in-app purchases: Kubios HRV at none against Timber's 2. Kubios HRV also leads on ads (none vs shown). Timber's advantage is update cadence (every 2 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Timber sells 2 in-app purchases, starting at $1.99 per month. Kubios HRV asks for nothing beyond the download.

Kubios HRV ships an update every 4 months, Timber every 2 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Kubios HRV | Timber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (198 ratings)](https://appshunter.io/ios/app/kubios-hrv-daily-readiness/id1463040412/reviews)** | — |
| Number of ratings | **198** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 45 MB | 21 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kubios Oy](https://appshunter.io/developer/1463040411) | [SREEHARI P C](https://appshunter.io/developer/6783869525) |

## What reviewers say

### Kubios HRV

[App page](https://appshunter.io/ios/app/kubios-hrv-daily-readiness/id1463040412)

This app uses heart rate variability (HRV) to provide insights into your daily readiness and physiological stress. It requires a compatible Bluetooth heart rate sensor for measurements. Offers modes for personal readiness monitoring and advanced research recordings.

**Highlights:** Daily readiness monitoring, Custom HRV recordings, Scientifically validated algorithms, Physiological recovery and stress tracking, Comparison to population norms, Support for Polar HR sensors

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

**In-app purchases:** none


### Timber

[App page](https://appshunter.io/ios/app/timber-custom-interval-timer/id6783869523)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timber Pro Monthly | $1.99 | per month |
| Timber Pro Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Kubios HRV free?

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

### Is Timber free?

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

### Do Kubios HRV or Timber have ads?

Timber shows ads; Kubios HRV does not.

### Which is updated more often, Kubios HRV or Timber?

Kubios HRV ships an update every 4 months, and Timber every 2 days. Most recently, Kubios HRV was updated on November 6, 2026 and Timber on November 10, 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.*