# Basalt Lab vs Kalos

The clearest difference is iOS requirement: Kalos at 15.1 against Basalt Lab's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Basalt Lab sells 2 in-app purchases, starting at $7.99 per month and Kalos sells 1 in-app purchase, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Basalt Lab | Kalos |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Freemium | — |
| Size | 98 MB | 91 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Otia LTD](https://appshunter.io/developer/1896514244) | [Zenyt](https://appshunter.io/developer/6782653873) |

## What reviewers say

### Basalt Lab

[App page](https://appshunter.io/ios/app/basalt-lab-workout-tracker/id6767849945)

Track your weightlifting progress with detailed statistics and automated logging. Features include manual set entry, rest timers, and Apple Watch integration for seamless workout tracking. Visualize your gains and identify plateaus to optimize your training.

**Highlights:** Automated workout logging, Rest timer and set validation, Apple Watch integration, Live Activities and Dynamic Island support, 370+ exercises and pre-made workouts, 48 detailed statistics, Plateau detection and 1RM projection

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basalt Lab Pro | $7.99 | per month |
| Basalt Lab Pro | $49.99 | per year |


### Kalos

[App page](https://appshunter.io/ios/app/kalos-workout/id6782653871)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kalos Premium Monthly | $6.99 | per month |


## Frequently asked questions

### Is Basalt Lab free?

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

### Is Kalos free?

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

### Do Basalt Lab or Kalos have ads?

Neither Basalt Lab nor Kalos shows ads.

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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.*