# Vocabulary Builder vs Study Clock

The clearest difference is ads: Vocabulary Builder at none against Study Clock's shown. Study Clock's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Vocabulary Builder sells 2 in-app purchases, starting at $3.99 per month and Study Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Vocabulary Builder ships an update fortnightly, Study Clock every 4 weeks. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Vocabulary Builder | Study Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vocabulary-builder-melody/id6739645783/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 28 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Johandre Delgado Moreno](https://appshunter.io/developer/1289898741) | [SnowdropSoft Co.,Ltd.](https://appshunter.io/developer/1541796403) |

## What reviewers say

### Vocabulary Builder

[App page](https://appshunter.io/ios/app/vocabulary-builder-melody/id6739645783)

This app helps you expand your English vocabulary with custom word sets, daily featured words, and interactive quizzes. It offers features like antonyms, synonyms, and progress tracking to enhance your writing and speaking skills.

**Highlights:** Custom vocabulary sets, Daily featured words, Interactive quizzes and flashcards, Antonyms and synonyms, Progress tracking, Example sentences

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $3.99 | per month |
| All Access | $29.99 | per year |


### Study Clock

[App page](https://appshunter.io/ios/app/study-clock-deep-focus-timer/id6756950093)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Vocabulary Builder free?

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

### Is Study Clock free?

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

### Do Vocabulary Builder or Study Clock have ads?

Study Clock shows ads; Vocabulary Builder does not.

### Which is updated more often, Vocabulary Builder or Study Clock?

Vocabulary Builder ships an update fortnightly, and Study Clock every 4 weeks. Most recently, Vocabulary Builder was updated on October 13, 2026 and Study Clock on October 14, 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.*