Visual Attention Therapy Lite vs Ratio S/Z
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Visual Attention Therapy Lite
This app helps individuals with brain injuries, strokes, or attention deficits improve their scanning abilities and cognitive skills. It offers timed exercises and automated scoring to track progress in areas like reading, concentration, and processing speed.
- Improve scanning abilities
- Assess for neglect
- Practice left-to-right scanning
- Timed exercises
- Automated scoring and reports
- Customizable layouts and difficulty
Read full descriptionHide full description
Visual Attention Therapy helps brain injury and stroke survivors, as well as struggling students, to improve scanning abilities. It also helps rehab professionals to assess for neglect and provide more efficient and effective therapy for attention deficits. Visual Attention Therapy Lite gives you a free taste of the customization and utility of the full app: Visual Attention Therapy. This lite version lets you try Test and Practice modes with one level and layout, but is otherwise a fully functional app, allowing you to try 1 or 2 targets, all the signal and target colors and styles, and send e-mail reports. Practicing scanning from left to right across a page helps retrain the brain to move the eyes correctly. Strengthening this essential skill can improve reading, concentration, memory, attention to detail, and speed of processing. Using two targets at once can help users with working memory and alternating attention. 1) Use the Test mode to help determine if a scanning or attention deficit exists. 2) Use the Practice mode to train scanning to find targets in order. _______________________ CANCELLATION TASKS JUST GOT BETTER This professional cognitive training app takes traditional cancellation exercises, the evidence-based standard for testing and treating visuospatial neglect, and enhances them with benefits that are only available through technology: * Targets must be tapped from left to right, top to bottom in Practice mode, training users to slow down and scan the entire screen before they can move forward. * Sidebar signal can flash in a variety of colors to draw attention to the left or right. * Auditory and a variety of visual cues give instant feedback and keep users engaged. * Timed exercises increase motivation to work quickly and accurately. * No need to spend time counting errors. Automated scoring includes data for accuracy by quadrant, time for completion, and mistakes in professional e-mailed reports. * Adjustable layouts and 10 levels of difficulty allow you to customize the experience to meet changing needs or multiple users. * An endless variety of combinations eliminates the need to photocopy exercises and saves paper. Visual Attention Therapy was developed by a certified Speech-Language Pathologist and is used worldwide by SLPs, occupational therapists, vision specialists, and neuropsychologists to help adults and children with dyslexia, dementia, and attentional deficits. People of all ages enjoy racing against the clock to challenge themselves to improve on their scores while improving their cognitive and reading skills. Levels featuring letters can support literacy goals, while symbol-based levels challenge visual memory skills. _______________________ WHAT PEOPLE ARE SAYING “This app takes a simple, familiar format and turns it into a dynamic, interactive tool with the ability to be age appropriate for anyone from preschoolers to elderly adults.” —SLP “Visual Attention Therapy is guaranteed to be one of those beautiful apps that, when you see it and try it out, will make you exclaim 'Finally!' We were this close to hugging it, to be honest. Thanks for yet another amazing release, Tactus Therapy.” —SLP “I was not sure if children would be motivated to use this app, but the 'no nonsense' approach really seemed to help the children with their attention & task persistence. They especially enjoyed the immediate feedback they got regarding their speed & accuracy. I recommend this app for school-aged children having difficulty with visual scanning/tracking, reading, working memory, & copying skills.”—OT _______________________ This app contains no outside ads or in-app purchases, does not collect or transmit personal data, and links can be deactivated. Supporting evidence for the design of this app can be found at www.tactustherapy.com.
Ratio S/Z
Read full descriptionHide full description
Ratio S/Z is an app designed by Andreu Sauca, an experienced speech therapist and phoniatrician. It has been conceived as a tool for the evaluation and the monitoring of voice rehabilitation. Purpose: The app registers the maximum expiration and phonation time and the calculation of the phonation quotient (or ratio S/Z) by using the highest of the three values in each. The ratio S/Z test is a crucial part in every protocol of voice exploration. There might be different professional purposes for taking the test. In addition to the exploration purpose, the ratio S/Z can be used as a re-evaluation in case of being monitoring or before being discharged. In some cases, it can also be prescribed as a training for different objectives (this app can be used both by the speech therapist and by the patient) or as a screening tool to detect voice problems among some collectives such as teachers. Procedure: With the aid of the chronometers integrated in the ratio S/Z, the professional registers three samples of the highest time taken in the production of the [s] and other three samples on the highest time production of the [z]. Each chronometer shows the obtained values and highlights the highest one in blue. Automatically, the app uses these values to calculate the S/Z quotient, which appears in green or in red to indicate whether it is pathological or not. The interpretation of results varies according to some parameters (age and gender) is accessible through a specific button. As the age and sex of the patient can vary the interpretation of the results, a button allows the selection of which kind of patient is undergoing the test. This will give us not only a more accurate result, but it will also evaluate the phonation time length, this is a novelty of this app. Characteristics: -Careful design to enable an easy access and a right understanding of the results. -Two chronometers with three partial storing boxes each individually resettable. -Selection of the type of patient according to age and gender. -Resounding examples of the requested sound. -Color code to identify the result fields and buttons. -Start, stop and reset buttons for each chronometer. -Informative window about the test. -Help window to ease the interpretation of results, adapted to it. -Export your results to pdf. -Languages: Spanish, Catalan, Italian and English. More soon.
Screenshots
Verdict
The clearest difference is price: Visual Attention Therapy Lite at Free against Ratio S/Z's $2.99. Visual Attention Therapy Lite also leads on iOS requirement (9.0 vs 11.0). Ratio S/Z's advantage is update cadence (every 3 months vs every 9 months) and chart position (#182 vs unranked). On ads, in-app purchases and device support 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
Visual Attention Therapy Lite is free to download; Ratio S/Z costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Visual Attention Therapy Lite ships an update every 9 months, Ratio S/Z every 3 months. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | Visual Attention Therapy Lite | Ratio S/Z |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (718 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 718 — better | — |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | — | #182 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 12 MB | 25 MB |
| Age rating | 4+ | 12+ |
| Developer | Tactus Therapy Solutions Ltd. | Marina Sauca |
Bugs and requests
Visual Attention Therapy Lite
Requested features
2 requests- Allow users to go to the next test without returning home
- Larger font for geriatric patients
Ratio S/Z
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Visual Attention Therapy Lite
No in-app purchases
Ratio S/Z
No in-app purchases
Questions
Is Visual Attention Therapy Lite free?
Is Ratio S/Z free?
Do Visual Attention Therapy Lite or Ratio S/Z have ads?
Which is updated more often, Visual Attention Therapy Lite or Ratio S/Z?
Other comparisons















