# Ebbinghaus vs Greenfield Harmony

Ebbinghaus and Greenfield Harmony are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Ebbinghaus | Greenfield Harmony |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/ebbinghaus/id6450792114/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 15 months | — |
| Monetization | Free | — |
| Size | 16 MB | 1.9 GB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Malam](https://appshunter.io/developer/628233851) | [martin jones](https://appshunter.io/developer/1291947940) |

## What reviewers say

### Ebbinghaus

[App page](https://appshunter.io/ios/app/ebbinghaus/id6450792114)

This app uses spaced repetition to help you remember information more effectively. Create custom flashcard decks for any subject and let the app intelligently schedule your review sessions based on scientific principles. It offers a distraction-free interface, progress tracking, and optional reminders.

**Highlights:** Spaced repetition scheduling, Customizable flashcard decks, Distraction-free design, Progress tracking chart, Smart review reminders, Dark mode support

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

**In-app purchases:** none


### Greenfield Harmony

[App page](https://appshunter.io/ios/app/greenfield-harmony/id6499541159)

**In-app purchases:** none


## Frequently asked questions

### Is Ebbinghaus free?

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

### Is Greenfield Harmony free?

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

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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.*