# Compound vs One Echo

The clearest difference is in-app purchases: Compound at none against One Echo's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. One Echo sells 1 in-app purchase, starting at $9.99 per year. Compound asks for nothing beyond the download.

## The numbers

| Metric | Compound | One Echo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/compound-yearly-habit-tracker/id6756857450/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 59 MB | 35 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Abhijat Saraswat](https://appshunter.io/developer/1850558165) | [Aparajit Tiwari](https://appshunter.io/developer/1871956655) |

## What reviewers say

### Compound

[App page](https://appshunter.io/ios/app/compound-yearly-habit-tracker/id6756857450)

This minimalist app displays your entire year on a single screen, allowing you to track daily habits with a single tap. It focuses on visualizing patterns and consistency without pressure or reminders, prioritizing privacy with local data storage.

**Highlights:** Yearly view on one screen, One-tap daily check-ins, Optional daily notes, Visual pattern emergence, Clean, minimalist interface, Local data storage, No notifications or reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### One Echo

[App page](https://appshunter.io/ios/app/one-echo/id6758593954)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Echo Pro | $9.99 | per year |


## Frequently asked questions

### Is Compound free?

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

### Is One Echo free?

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

### Do Compound or One Echo have ads?

Neither Compound nor One Echo 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.*