# AI Word Memorizer vs Proof

The clearest difference is ads: Proof at none against AI Word Memorizer's shown. Proof also leads on update cadence (every 2 days vs every 5 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. AI Word Memorizer sells 1 one-off in-app purchase and Proof sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

AI Word Memorizer ships an update every 5 days, Proof every 2 days. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | AI Word Memorizer | Proof |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 18 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HyunSu Park](https://appshunter.io/developer/1502498940) | [hyeongsik cho](https://appshunter.io/developer/6786529134) |

## What reviewers say

### AI Word Memorizer

[App page](https://appshunter.io/ios/app/ai-word-memorizer/id6740163477)

This app uses AI to help you memorize words by generating custom sentences for review and suggesting words. You can create your own word lists and utilize AI-powered search and checking features to enhance your learning process.

**Highlights:** AI sentence generation for review, AI word search, AI sentence checking, AI recommended words, Custom word saving

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI +200 Sentene, +100 Speaking | $0.99 | one-time |


### Proof

[App page](https://appshunter.io/ios/app/proof/id6786529132)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proof Pro 월간 구독 | $2.99 | per month |
| Proof Pro 월간 구독 | $19.99 | per year |


## Frequently asked questions

### Is AI Word Memorizer free?

AI Word Memorizer is free to download, with in-app purchases available.

### Is Proof free?

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

### Do AI Word Memorizer or Proof have ads?

AI Word Memorizer shows ads; Proof does not.

### Which is updated more often, AI Word Memorizer or Proof?

AI Word Memorizer ships an update every 5 days, and Proof every 2 days. Most recently, AI Word Memorizer was updated on November 4, 2026 and Proof on November 2, 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.*