# STEP Vocabulary Builder vs arcoco

The clearest difference is ads: STEP Vocabulary Builder at none against arcoco's shown. STEP Vocabulary Builder also leads on update cadence (every 11 days vs every 2 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. STEP Vocabulary Builder sells 3 in-app purchases, starting at $2.99 per 7 days and arcoco sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

STEP Vocabulary Builder ships an update every 11 days, arcoco every 2 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | STEP Vocabulary Builder | arcoco |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (52 ratings)](https://appshunter.io/ios/app/step-vocabulary-builder/id1503479575/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 89.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 143 MB | 164 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Knudge Technology Private Limited](https://appshunter.io/developer/1358258807) | [ARCOCO LTD](https://appshunter.io/developer/952089161) |

## What reviewers say

### STEP Vocabulary Builder

[App page](https://appshunter.io/ios/app/step-vocabulary-builder/id1503479575)

Learn new English words and improve your language skills with visual flashcards and interactive games. This app uses scientifically designed activities to enhance vocabulary, grammar, reading, listening, and writing.

**Highlights:** Visual flashcards, Interactive quizzes, Vocabulary and grammar games, Spaced learning, Adaptive learning, Progress tracker, Personalized revision tests

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Step Pro Weekly Subscription | $2.99 | per 7 days |
| Step Pro Monthly Subscription | $9.99 | per month |
| Step Pro Yearly Subscription | $24.99 | per year |


### arcoco

[App page](https://appshunter.io/ios/app/arcoco/id6753216361)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| arcoco Plus Monthly | $6.99 | per month |
| arcoco Plus Annual | $39.99 | per year |


## Frequently asked questions

### Is STEP Vocabulary Builder free?

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

### Is arcoco free?

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

### Do STEP Vocabulary Builder or arcoco have ads?

arcoco shows ads; STEP Vocabulary Builder does not.

### Which is updated more often, STEP Vocabulary Builder or arcoco?

STEP Vocabulary Builder ships an update every 11 days, and arcoco every 2 months. Most recently, STEP Vocabulary Builder was updated on October 15, 2026 and arcoco on October 13, 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.*