# Hello! Word vs GREify

The clearest difference is iOS requirement: Hello! Word at 12.0 against GREify's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Hello! Word ships an update every 4 days, GREify every 3 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Hello! Word | GREify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greify-gre-vocab-replacer/id6745745978/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | — | Free |
| Size | 33 MB | 1 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kohei Imabayashi](https://appshunter.io/developer/1780872848) | [晟远 鲁](https://appshunter.io/developer/1450568803) |

## What reviewers say

### Hello! Word

[App page](https://appshunter.io/ios/app/hello-word/id6742373610)

**In-app purchases:** none


### GREify

[App page](https://appshunter.io/ios/app/greify-gre-vocab-replacer/id6745745978)

This app enhances your GRE vocabulary by seamlessly replacing common words with GRE-level terms as you browse the web. Learn new words naturally within the context of articles and blogs you already read, without altering your daily habits.

**Highlights:** Replaces common words with GRE vocabulary, Integrates with Safari browser, Passive vocabulary learning, Learn up to 2,700 GRE words, Works on iPhone, iPad, and Mac

**Features:** macOS Compatibility, Safari Extension

**In-app purchases:** none


## Frequently asked questions

### Is Hello! Word free?

Hello! Word is free to download, with no in-app purchases.

### Is GREify free?

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

### Do Hello! Word or GREify have ads?

Neither Hello! Word nor GREify shows ads.

### Which is updated more often, Hello! Word or GREify?

Hello! Word ships an update every 4 days, and GREify every 3 days. Most recently, Hello! Word was updated on November 8, 2026 and GREify on October 30, 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.*