# Treadly vs Sub20

The clearest difference is iOS requirement: Sub20 at 15.0 against Treadly's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Treadly sells 2 in-app purchases, starting at $9.99 per month and Sub20 sells 1 in-app purchase, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

Treadly ships an update every 4 days, Sub20 every 3 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Treadly | Sub20 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/treadly-running-coach/id6759844169/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 99 MB | 10 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Treadly Limited Liability Company](https://appshunter.io/developer/1881132165) | [Chris Edgar](https://appshunter.io/developer/6775813655) |

## What reviewers say

### Treadly

[App page](https://appshunter.io/ios/app/treadly-running-coach/id6759844169)

This app tracks the invisible wear on your running shoes to help you replace them before they cause injury. It syncs automatically with Strava and Apple Health, providing mileage, wear percentage, and replacement forecasts.

**Highlights:** Track shoe mileage and wear percentage, Replacement countdown and forecasts, Automatic syncing with Strava and Apple Health, Smart shoe rotation profiles, Share shoe milestones and ratings, Home screen widget and Apple Watch app

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Treadly Pro | $9.99 | per month |
| Treadly Pro | $59.99 | per year |


### Sub20

[App page](https://appshunter.io/ios/app/sub20-5k-running-coach/id6775813653)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sub20 Monthly | $24.99 | per month |


## Frequently asked questions

### Is Treadly free?

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

### Is Sub20 free?

Sub20 is free to download, with in-app purchases available.

### Do Treadly or Sub20 have ads?

Neither Treadly nor Sub20 shows ads.

### Which is updated more often, Treadly or Sub20?

Treadly ships an update every 4 days, and Sub20 every 3 days. Most recently, Treadly was updated on October 25, 2026 and Sub20 on October 14, 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.*