# Vocabulary Builder by Simba vs DL Screening

The clearest difference is in-app purchases: DL Screening at none against Vocabulary Builder by Simba's 4. DL Screening also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Vocabulary Builder by Simba sells 4 in-app purchases, starting at $4.99 per month. DL Screening asks for nothing beyond the download.

Vocabulary Builder by Simba ships an update every 2 weeks, DL Screening every 5 days. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Vocabulary Builder by Simba | DL Screening |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 103 MB | 44 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Fatih Demir](https://appshunter.io/developer/1763651681) | [Blink Foundation](https://appshunter.io/developer/1554454069) |

## What reviewers say

### Vocabulary Builder by Simba

[App page](https://appshunter.io/ios/app/vocabulary-builder-by-simba/id6642710237)

Master English vocabulary with curated word sets, interactive games, and a smart review system. Tailor your learning with custom decks and personalized practice modes. An optional premium upgrade offers advanced features and expanded content.

**Highlights:** Curated word sets by proficiency level, Interactive practice modes (flashcards, games), Customizable vocabulary decks, Smart review system for retention, AI-powered custom deck creation (premium), Offline access to word sets

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simba Monthly Plan | $4.99 | per month |
| Simba Discounted Yearly Plan | $19.99 | per year |
| Simba Yearly Plan | $29.99 | per year |
| Lifetime Subscription | $99.99 | one-time |


### DL Screening

[App page](https://appshunter.io/ios/app/dl-screening/id6747577024)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vocabulary Builder by Simba free?

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

### Is DL Screening free?

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

### Do Vocabulary Builder by Simba or DL Screening have ads?

Vocabulary Builder by Simba shows ads; DL Screening does not.

### Which is updated more often, Vocabulary Builder by Simba or DL Screening?

Vocabulary Builder by Simba ships an update every 2 weeks, and DL Screening every 5 days. Most recently, Vocabulary Builder by Simba was updated on October 24, 2026 and DL Screening on October 17, 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.*