Comparison

IowaColorVision 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

IowaColorVision

Features
Read full description

The Iowa Color Vision App allows users to capture color vision testing data from several commonly used testing modalities including the 14 plate Ishihara pseudo-isochromatic plate test, the Farnsworth-Munsell D15 test, the Hardy-Rand-Rittler pseudoisochromatic plate test, and a custom Color Naming test. The App also supports a custom LED-based digital anomaloscope developed at the University of Iowa. All of these results are collated into a PDF report.

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
Currently charting
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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

Focus Builder Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: IowaColorVision at none against Focus Builder Pro's 3. Focus Builder Pro's advantage is update cadence (every 2 weeks vs every 2 months) and chart position (#188 vs unranked). On price, 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

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

UpkeepUpdate frequency

IowaColorVision ships an update every 2 months, Focus Builder Pro every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 7 level
IowaColorVision versus Focus Builder Pro: the parameters behind the verdict, then further details
ParameterIowaColorVisionFocus Builder Pro
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
Best chart rank—#188 — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size6 MB50 MB
Age rating4+17+
DeveloperThe University of Iowa (ITS)NeurdSolutions, LLC

In-app purchases

None

IowaColorVision

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 IowaColorVision free?
IowaColorVision 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.
Do IowaColorVision or Focus Builder Pro have ads?
Neither IowaColorVision nor Focus Builder Pro shows ads.
Which is updated more often, IowaColorVision or Focus Builder Pro?
IowaColorVision ships an update every 2 months, and Focus Builder Pro every 2 weeks. Most recently, IowaColorVision was updated on October 25, 2026 and Focus Builder Pro on October 24, 2026.

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