# Avalvi vs Spa 4 Elements

The clearest difference is in-app purchases: Spa 4 Elements at none against Avalvi's 2. Spa 4 Elements also leads on ads (none vs shown). Avalvi's advantage is update cadence (every 10 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Avalvi sells 2 in-app purchases, starting at $2.99 per month. Spa 4 Elements asks for nothing beyond the download.

Avalvi ships an update every 10 days, Spa 4 Elements every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Avalvi | Spa 4 Elements |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/avalvi-inr-tracker-and-dose-log/id6751401090/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 18 MB | 100 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Artur Skwarek](https://appshunter.io/developer/884725267) | [Andrea Solutions](https://appshunter.io/developer/1734094747) |

## What reviewers say

### Avalvi

[App page](https://appshunter.io/ios/app/avalvi-inr-tracker-and-dose-log/id6751401090)

This app helps manage anticoagulation therapy by tracking INR results, medication doses, and Time in Therapeutic Range (TTR). It offers trend analysis, doctor-ready reports, and smart reminders to ensure treatment adherence and prepare for appointments.

**Highlights:** Fast INR logging, Dose tracking, TTR statistics, Trend analysis, Doctor-ready reports, Smart reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $29.99 | per year |


### Spa 4 Elements

[App page](https://appshunter.io/ios/app/spa-4-elements/id6758737812)

**In-app purchases:** none


## Frequently asked questions

### Is Avalvi free?

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

### Is Spa 4 Elements free?

Spa 4 Elements is free to download, with no in-app purchases.

### Do Avalvi or Spa 4 Elements have ads?

Avalvi shows ads; Spa 4 Elements does not.

### Which is updated more often, Avalvi or Spa 4 Elements?

Avalvi ships an update every 10 days, and Spa 4 Elements every 3 weeks. Most recently, Avalvi was updated on October 14, 2026 and Spa 4 Elements on October 7, 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.*