528i vs Focus Builder Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
528i
This app guides users through laser therapy sessions with step-by-step instructions and instructional videos. It connects to a laser device to optimize timing, frequency, and application for photobiomodulation and low-level laser therapy.
- Step-by-step smart guidance
- Interactive instructional videos
- Wavelength recommendations
- Device connectivity
- Precision wellness at home
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528i – Smart Laser Therapy, Simplified Take the guesswork out of light therapy with the 528i Mobile App—your interactive guide for clinical-grade precision wellness at home. Designed to pair with the 5i Series Laser Therapy System, the app delivers real-time support and step-by-step guidance to maximize the benefits of photobiomodulation (PBM) and low-level laser therapy (LLLT). Features: * Smart Guidance: Follow clear, step-by-step instructions for optimal timing, frequency, and targeted laser application. * Interactive Support: Access instructional videos and guided therapy techniques tailored to your program. * Wavelength Insights: Explore a full list of recommended wavelengths for each preset and program to enhance therapy results. * Device Connectivity: Sync effortlessly with your 528i laser device for a fully integrated experience. The 5i Series system is FDA-cleared in the United States. The 5i Series system features clinical-grade Class 3R laser technology designed for safe, effective use in the comfort of your home. Proven benefits include relief from pain, improved blood circulation, reduced inflammation, and muscle relaxation. Whether you’re new to light therapy or seeking advanced precision, the 528i app empowers your wellness journey with clarity, confidence, and results. DISCLAIMER: This application is intended for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the guidance of your physician or other qualified health provider with any questions you may have regarding a medical condition. Do not disregard professional medical advice or delay in seeking it because of information provided by this app.
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.
- Targeted eye movement exercises
- Brain plasticity enhancement
- Customizable exercise settings
- Patient session builder
- Progress monitoring
- Neurotherapeutic outcomes
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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
Verdict
The clearest difference is in-app purchases: 528i at none against Focus Builder Pro's 3. On price, rating, ratings volume and update cadence 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
Both are free to download. Focus Builder Pro sells 3 in-app purchases, starting at $9.99 per month. 528i asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for 528i against 5.0 for Focus Builder Pro. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
528i ships an update fortnightly, Focus Builder Pro every 10 days. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.
| Parameter | 528i | Focus Builder Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 35 MB | 50 MB |
| Age rating | 17+ | 17+ |
| Developer | 528 INNOVATIONS LLC | NeurdSolutions, LLC |
Customer experience
528i
Focus Builder Pro
In-app purchases
528i
No in-app purchases
Focus Builder Pro
- Focus Builder Pro Practitioner$9.991 Month
- Focus Builder Pro Practitioner$69.991 Year
- Patient Purchase$19.99








