# DLAB vs Advanced Verbal Lab

The clearest difference is in-app purchases: DLAB at none against Advanced Verbal Lab's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Advanced Verbal Lab sells 10 one-off in-app purchases. DLAB asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | DLAB | Advanced Verbal Lab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 21 MB | 2 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onanen Ventures LLC](https://appshunter.io/developer/1803525458) | [Ryoko Goto](https://appshunter.io/developer/6787639092) |

## What reviewers say

### DLAB

[App page](https://appshunter.io/ios/app/dlab/id6743597407)

Prepare for the Defense Language Aptitude Battery (DLAB) with this comprehensive study tool. It offers interactive lessons, grammar reviews, and realistic practice tests, including audio-based questions and Esperanto content, to improve your language learning and boost your score.

**Highlights:** Interactive grammar lessons, Audio-based practice questions, DLAB-specific content, Esperanto questions, Stress & Tones practice, Language Rules review

**Features:** macOS Compatibility

**In-app purchases:** none


### Advanced Verbal Lab

[App page](https://appshunter.io/ios/app/advanced-verbal-lab/id6791155116)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Formula Flash II: ASSEMBLE | $2.99 | one-time |
| Formula Flash I: PARSE | $2.99 | one-time |
| Formula Flash III: RESOLVE | $2.99 | one-time |
| Context Volume III | $4.99 | one-time |
| Context Volume I | $4.99 | one-time |
| Context Volume II | $4.99 | one-time |
| Context Volume IV | $4.99 | one-time |
| The whole Formula Flash shelf | $6.99 | one-time |
| The whole Context track | $16.99 | one-time |
| The Complete Library | $21.99 | one-time |


## Frequently asked questions

### Is DLAB free?

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

### Is Advanced Verbal Lab free?

Advanced Verbal Lab is free to download, with in-app purchases available.

### Do DLAB or Advanced Verbal Lab have ads?

Neither DLAB nor Advanced Verbal Lab shows ads.

### Which is updated more often, DLAB or Advanced Verbal Lab?

DLAB ships an update fortnightly, and Advanced Verbal Lab fortnightly. Most recently, DLAB was updated on October 10, 2026 and Advanced Verbal Lab on September 30, 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.*