# Memorio vs Vocab Builder

The clearest difference is update cadence: Memorio at every 4 days against Vocab Builder's every 3 months. Memorio also leads on device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Memorio sells 2 in-app purchases, starting at $0.99 per month and Vocab Builder sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Memorio ships an update every 4 days, Vocab Builder every 3 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Memorio | Vocab Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memorio-learn-words/id1663582726/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Freemium | — |
| Size | 131 MB | 21 MB |
| Requires iOS | 17.6 | **16.2** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Petros Tepoyan](https://appshunter.io/developer/1504241428) | [Kamil Demirtas](https://appshunter.io/developer/1328561522) |

## What reviewers say

### Memorio

[App page](https://appshunter.io/ios/app/memorio-learn-words/id1663582726)

Learn new vocabulary by reviewing words on your iPhone's lock screen between everyday tasks. The app uses a forgetting-curve model to prioritize words needing practice, offering interactive quizzes and progress tracking. Supports multiple languages and offers offline access on Apple Watch.

**Highlights:** Interactive lock-screen review, Forgetting-curve learning model, Offline Apple Watch access, Vocabulary by topic, Progress tracking, Multiple language support

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memorio Premium | $0.99 | per month |
| Memorio Premium | $4.99 | per year |


### Vocab Builder

[App page](https://appshunter.io/ios/app/vocab-builder-lock-screen/id6560115054)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vocab Pro Weekly | $3.99 | per 7 days |
| Vocab Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Memorio free?

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

### Is Vocab Builder free?

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

### Do Memorio or Vocab Builder have ads?

Neither Memorio nor Vocab Builder shows ads.

### Which is updated more often, Memorio or Vocab Builder?

Memorio ships an update every 4 days, and Vocab Builder every 3 months. Most recently, Memorio was updated on November 11, 2026 and Vocab Builder on November 8, 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.*