Comparison

Visual Vertical vs Focus Builder Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Visual Vertical

This medical app offers a quick, accurate, and low-cost method for measuring subjective visual vertical. It's designed for neurologists and vestibular rehabilitation specialists to test patients, especially for brainstem lesions and otolithic function, using just an iPhone or iPad.

Highlights
  • Measure subjective visual vertical
  • Accurate and low-cost testing
  • Suitable for neurology and vestibular rehab
  • Tests for brainstem lesions
  • Evaluates otolithic function
  • Multiple readings and averaged results
  • Single, one-off readings
Features
Read full description

Visual Vertical makes high-grade subjective visual vertical (SVV) testing accessible to every practitioner — no expensive equipment required. SVV testing is a sensitive, validated measure for brainstem lesions and otolithic dysfunction, widely used in neurology and vestibular rehabilitation. Until now, accurate testing required bulky, costly apparatus. Visual Vertical changes that: all you need is your iPhone, a bucket, and a small piece of Blu Tack. How it works Mount your iPhone inside the bottom of a bucket using Blu Tack. The patient holds the bucket to their face and adjusts a line on screen until it appears vertical to them. The app records the deviation and calculates your result — accurate readings in minutes, at a fraction of the traditional cost. What you can measure - Left eye, right eye, or both eyes open - Single readings or full sequences across all conditions - One or three readings per condition, with automatic averaging Clean, minimal results screens make it easy to record and communicate findings.

About

Focus Builder Pro

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
Read full description

Focus Builder: Targeted Eye Movement Exercises for Functional Neurologists and Patients Focus Builder is an iPad-optimized app delivering evidence-based eye movement exercises to promote brain plasticity and neurotherapeutic outcomes. Access requires creating an account and selecting your role: Subscription & Access Details Focus Builder requires role selection upon signup: Practitioner (Functional Neurologist) or Patient. This choice is permanent. - For Practitioners: Auto-Renewing Subscription Unlocking: - Access to 12 exercises with lots of customizable settings. Create new exercises based on the settings + sequences of exercises. - Patient session builder: Create and assign personalized exercise sequences for your patients, including progress monitoring and adjustment based on outcomes. Subscriptions auto-renew via Apple and can be managed in your App Store account. No free trial, but full access starts immediately upon purchase. Cancel anytime. - For Patients: One-Time In-App Purchase Permanent access to all exercises under your practitioner's guidance. No ongoing fees—includes any sequences assigned by your doctor for personalized therapy or usage of the exercises. Payment details are shown in your user profile after login. Role selection is permanent and cannot be changed later. No free trial or limited access—full functionality begins after purchase. Eye movements are a very powerful way to exercise the brain and to create long-term change in the brain, known as plasticity. The “Focus Builder” app contains a variety of exercises which challenge users to voluntarily move their eyes in various patterns, speeds and directions, which have been proven to activate specific parts of the brain depending on which eye movement is performed. This app is specifically designed for doctors that specialize in Functional Neurology and their patients. There is currently no app available that can provide these specific exercises. For best results, patients should consult a Functional Neurologist to determine how to use this app according to their needs and obtain the most therapeutic value. There are 3 types of eye movements that can have profound therapeutic benefits and all three are available in this app. 1.Pursuits (slow eye movements): Smooth pursuit eye movements allow the eyes to closely follow a moving object. Most people are unable to initiate pursuit without a moving visual signal. The pursuit of targets moving with velocities of greater than 30°/s tend to require catch-up saccades. 2.Saccades (fast eye movements): Saccades are quick, simultaneous movements of both eyes in the same direction. Initiated cortically by the frontal eye fields (FEF), or subcortically by the superior colliculus, saccades serve as a mechanism for fixation, rapid eye movement, and the fast phase of optokinetic nystagmus. 3.Anti-saccades (look away): The anti-saccade task has emerged as an important task for investigating the flexible control that we have over behavior. In this task, participants must suppress the reflexive urge to look at a visual target that appears suddenly in the peripheral visual field and must instead look away from the target in the opposite direction. A crucial step involved in performing this task is the top-down inhibition of a reflexive, automatic saccade. Patients diagnosed with various neurological and/or psychiatric disorders that affect the frontal lobes or basal ganglia find it difficult to suppress the automatic pro-saccade, revealing a deficit in top-down inhibition. The areas of the brain that are activated by these eye movements are too numerous to list, but to name a few, I have listed some of the functions that can improve with these eye exercises. 1.Executive function/behavior 2.Attention 3.Concentration 4.Impulse control 5.Social behavior 6.Motivation 7.Goal directed behavior Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Visual Vertical4 screens
Focus Builder Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Visual Vertical at 100% against Focus Builder Pro's 0%. Visual Vertical also leads on in-app purchases (none vs 3). Focus Builder Pro's advantage is price (Free vs $11.99) and rating (5.0 vs 2.0). On ratings volume, ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Focus Builder Pro is free to download; Visual Vertical costs $11.99 up front. Focus Builder Pro sells 3 in-app purchases, starting at $9.99 per month. Visual Vertical asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Focus Builder Pro holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews complicate that: 100% of Visual Vertical's written reviews are positive against 0% of Focus Builder Pro's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Visual Vertical ships an update every 38 months, Focus Builder Pro every 2 weeks. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

Scorecard7 real differences · 3 level
Visual Vertical versus Focus Builder Pro: the parameters behind the verdict, then further details
ParameterVisual VerticalFocus Builder Pro
Price$11.99Free — better
Rating2.0 (5 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings5 — better2
Update frequencyEvery 38 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size10 MB50 MB
Age rating12+17+
DeveloperClear Health MediaNeurdSolutions, LLC

Customer experience

Visual Vertical

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Focus Builder Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Visual Vertical

No in-app purchases

3 purchases

Focus Builder Pro

Subscriptions2
  • Focus Builder Pro Practitioner$9.991 Month
  • Focus Builder Pro Practitioner$69.991 Year
One-time1
  • Patient Purchase$19.99

Questions

Is Visual Vertical free?
Visual Vertical costs $11.99, 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, Visual Vertical or Focus Builder Pro?
Focus Builder Pro is rated higher. Visual Vertical averages 2.0 out of 5 from 5 ratings, while Focus Builder Pro averages 5.0 from 2 ratings.
Do Visual Vertical or Focus Builder Pro have ads?
Neither Visual Vertical nor Focus Builder Pro shows ads.
Which is updated more often, Visual Vertical or Focus Builder Pro?
Visual Vertical ships an update every 38 months, and Focus Builder Pro every 2 weeks. Most recently, Visual Vertical was updated on September 24, 2026 and Focus Builder Pro on October 1, 2026.

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