# EchoCal vs Sleep Debt Tracker Calculator

The clearest difference is ads: Sleep Debt Tracker Calculator at none against EchoCal's shown. On price, update cadence, 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 Sleep Debt Tracker Calculator sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | EchoCal | Sleep Debt Tracker Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 49 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JAKUB PIGIEL](https://appshunter.io/developer/1890632501) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## 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 |


### Sleep Debt Tracker Calculator

[App page](https://appshunter.io/ios/app/sleep-debt-tracker-calculator/id6771320331)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Yearly | $29.99 | per year |
| Lifetime Pro | $59.99 | one-time |


## Frequently asked questions

### Is EchoCal free?

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

### Is Sleep Debt Tracker Calculator free?

Sleep Debt Tracker Calculator is free to download, with in-app purchases available.

### Do EchoCal or Sleep Debt Tracker Calculator have ads?

EchoCal shows ads; Sleep Debt Tracker Calculator does not.

### Which is updated more often, EchoCal or Sleep Debt Tracker Calculator?

EchoCal ships an update every 3 weeks, and Sleep Debt Tracker Calculator every 3 weeks. Most recently, EchoCal was updated on October 31, 2026 and Sleep Debt Tracker Calculator on October 31, 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.*