# King vs Focus Builder Pro

The clearest difference is in-app purchases: King at none against Focus Builder Pro's 3. King also leads on iOS requirement (11.0 vs 15.1). Focus Builder Pro's advantage is update cadence (every 2 weeks vs every 19 months) and chart position (#133 vs unranked). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Focus Builder Pro sells 3 in-app purchases, starting at $9.99 per month. King asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for King against 5.0 for Focus Builder Pro. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

King ships an update every 19 months, Focus Builder Pro every 2 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | King | Focus Builder Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/king-devick-recovery-practice/id770639096/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/focus-builder-pro/id6751810825/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#133** |
| Size | 178 MB | 50 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [King-Devick Test, LLC](https://appshunter.io/developer/424793545) | [NeurdSolutions, LLC](https://appshunter.io/developer/950133465) |

## What reviewers say

### King

[App page](https://appshunter.io/ios/app/king-devick-recovery-practice/id770639096)

This application assists individuals with eye movement deficits stemming from neurological impairment. It facilitates practice with an oculomotor program, presenting number targets for reading aloud to improve vision-related symptoms after brain injury. The program offers adjustable speed settings and tracks progress.

**Highlights:** Oculomotor program practice, Dynamic number target presentation, Adjustable speed settings, Instant outcome measures, Compliance monitoring, Requires existing account

**Features:** macOS Compatibility

**In-app purchases:** none


### Focus Builder Pro

[App page](https://appshunter.io/ios/app/focus-builder-pro/id6751810825)

**Currently charting:** #133 Top Grossing · Medical (US App Store)

This app offers targeted eye movement exercises designed to enhance brain plasticity and neurotherapeutic outcomes. It provides customizable exercises and patient session building for practitioners, and permanent access to exercises for patients under guidance.

**Highlights:** Targeted eye movement exercises, Brain plasticity enhancement, Customizable exercise settings, Patient session builder, Progress monitoring, Neurotherapeutic outcomes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Builder Pro Practitioner | $9.99 | per month |
| Focus Builder Pro Practitioner | $69.99 | per year |
| Patient Purchase | $19.99 | one-time |


## Frequently asked questions

### Is King free?

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

### Is Focus Builder Pro free?

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

### Which has better reviews, King or Focus Builder Pro?

King and Focus Builder Pro are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do King or Focus Builder Pro have ads?

Neither King nor Focus Builder Pro shows ads.

### Which is updated more often, King or Focus Builder Pro?

King ships an update every 19 months, and Focus Builder Pro every 2 weeks. Most recently, King was updated on October 7, 2026 and Focus Builder Pro on October 1, 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.*