# EchoCal vs Winter Arc

The clearest difference is ads: Winter Arc at none against EchoCal's shown. Winter Arc also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. EchoCal sells 2 in-app purchases, starting at $3.99 per month and Winter Arc sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

EchoCal ships an update every 3 weeks, Winter Arc every 4 days. The most recent releases landed on September 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | EchoCal | Winter Arc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 49 MB | 87 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JAKUB PIGIEL](https://appshunter.io/developer/1890632501) | [mehrbytes](https://appshunter.io/developer/1889203241) |

## What reviewers say

### EchoCal

[App page](https://appshunter.io/ios/app/echocal/id6761645536)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EchoCal Premium | $3.99 | per month |
| EchoCal Premium | $29.99 | per year |


### Winter Arc

[App page](https://appshunter.io/ios/app/winter-arc-betterself/id6806833035)

This app helps you build discipline and lasting habits through structured daily tasks and progress tracking. Choose from pre-set challenges or create your own to improve fitness, focus, health, or overall routines. Stay motivated with groups and shared challenges.

**Highlights:** Structured daily tasks, Progress tracking, Customizable challenges, Focus and healthy routines, Group and shared challenges, Home screen widgets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Annual Subscription | $14.99 | per year |
| Annual Subscription | $34.99 | per year |


## Frequently asked questions

### Is EchoCal free?

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

### Is Winter Arc free?

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

### Do EchoCal or Winter Arc have ads?

EchoCal shows ads; Winter Arc does not.

### Which is updated more often, EchoCal or Winter Arc?

EchoCal ships an update every 3 weeks, and Winter Arc every 4 days. Most recently, EchoCal was updated on September 24, 2026 and Winter Arc on October 8, 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.*