# Slog vs Zone 2 Training App

The clearest difference is iOS requirement: Zone 2 Training App at 17.0 against Slog's 26.4. 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.

## The numbers

| Metric | Slog | Zone 2 Training App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 3 MB | 18 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [William Cai](https://appshunter.io/developer/1755414116) | [Sanjay Gill](https://appshunter.io/developer/1709125864) |

## What reviewers say

### Slog

[App page](https://appshunter.io/ios/app/slog-zone-2-cardio/id6761517042)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Zone 2 Training App

[App page](https://appshunter.io/ios/app/zone-2-training-app/id6776123744)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Slog free?

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

### Is Zone 2 Training App free?

Zone 2 Training App is free to download, with no in-app purchases.

### Do Slog or Zone 2 Training App have ads?

Neither Slog nor Zone 2 Training App 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.*