Comparison

Number Therapy Lite vs SternbergTests

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

Head to head
About

Number Therapy Lite

Practice understanding, saying, and typing numbers to improve essential communication skills. This app helps stroke survivors and others gain independence by strengthening their ability to communicate numbers in various contexts.

Highlights
  • Number comprehension practice
  • Speech and pronunciation exercises
  • Typing numbers
  • Customizable interface
  • Progress tracking
  • Evidence-based approach
Read full description

Numbers communicate so much, yet they are often left out of communication therapy. Now stroke survivors can practice understanding, saying, and typing numbers at home to improve these essential life skills. Age, dates, phone numbers, addresses, money, time, measurements, fractions, weight, years – numbers are everywhere and so important. Be more independent with communication with stronger number communication skills. Would you be able to understand, write down, and tell someone this phone message? “Your appointment is at 3:15 p.m. on August 3rd, 2015 at 1650 18th Avenue. Bring $5. Please call back to confirm at 785-5662.” Work on all these number skills and more with the evidence-based Number Therapy app! Number Therapy Lite gives you a free way to test-drive the full functionality of the app with a sample from the 30 categories of numbers including: *Single Digits *Double Digits *Triple Digits *Four Digits *Time *Money *Phone Numbers (add your own in the full version) *Ordinals *Fractions Number Therapy offers thousands of unique exercises you can use anywhere. Number Therapy Lite gives you a taste so you'll know the app is worth using. Work at your own pace to practice the skills that matter to you. This app has the same highly customizable, clean, intuitive interface you’ve come to love in Tactus Therapy apps. Developed in conjunction with people with aphasia, this app is designed to help you get the intensity of practice you need in a way that is easy to use. Number Therapy also gives you recommendations for which level and settings you should use based on your score. See how easy it is to make progress when you're working at the right level for you! Speech-Language Pathologists: use Number Therapy to make the communication of numbers a part of your therapy plan for people with aphasia or other disorders. Three unique activities address auditory and reading comprehension, verbal expression, and written expression. Your clients can use the built-in hints, cues, and audio recording to be successful, then e-mail you their results in a professional report so you can track their progress over time. Ideal for use in the clinic and at home, add Number Therapy to your therapy app collection! Number Therapy Lite is a FREE trial version of Number Therapy. What's the difference? Lite = 4 categories with 7 items in each; Full = 30 categories with thousands of items Lite = categories contain a mix of items from subcategories; Full = focus on just one subcategory at a time or mix & match Lite = no custom phone numbers; Full = unlimited custom phone numbers Lite = 7 exercises at a time; Full = 10, 25, 50, or 100 in a session Once you've given it a try, you'll want to get the full version so you can truly master the communication of numbers and be more independent. *Please note: this app does NOT address math skills or equations. It focuses on the communication of numbers, not calculations.

About

SternbergTests

This app supports various stimuli for working memory testing, including numbers, letters, and words. It offers customizable span selection, randomized order, and detailed timing settings. Results can be exported in spreadsheet or XML formats, and shared as PDFs.

Highlights
  • Multiple stimulus types (numbers, letters, words)
  • Adjustable span selection (1-7)
  • Randomized span order and display
  • Customizable timing settings
  • Graph-based results visualization
  • Exportable data (spreadsheet, XML)
  • Shareable PDF reports
Features
Read full description

Supports use of different stimuli (numbers, letters, words), selection of spans (1-7), randomised span order and display, and various timing settings. Shows results as a graph, exportable in spreadsheet (with summary, linear regression equation, correlation coefficient) and xml formats. PDF of results also shareable. Written in SwiftUI.

Screenshots

Number Therapy Lite4 screens
SternbergTests4 screens

Verdict

The call

The clearest difference is review sentiment: Number Therapy Lite at 100% against SternbergTests's 0%. Number Therapy Lite also leads on rating (4.8 vs 1.0) and ratings volume (135 vs 1). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Number Therapy Lite holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Number Therapy Lite has 135 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Number Therapy Lite's written reviews are positive against 0% of SternbergTests's.

UpkeepUpdate frequency

Number Therapy Lite ships an update every 5 months, SternbergTests every 9 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
Number Therapy Lite versus SternbergTests: the parameters behind the verdict, then further details
ParameterNumber Therapy LiteSternbergTests
PriceFreeFree
Rating4.8 (135 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings135 — better1
Update frequencyEvery 5 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size7 MB4 MB
Age rating4+4+
DeveloperTactus Therapy Solutions Ltd.CereScape Pty Ltd

Customer experience

Number Therapy Lite

All ratings129 ratings
Positive94.6%
Neutral3.9%
Negative1.6%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SternbergTests

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Number Therapy Lite

No in-app purchases

None

SternbergTests

No in-app purchases

Questions

Is Number Therapy Lite free?
Number Therapy Lite is free to download, with no in-app purchases.
Is SternbergTests free?
SternbergTests is free to download, with no in-app purchases.
Which has better reviews, Number Therapy Lite or SternbergTests?
Number Therapy Lite is rated higher. Number Therapy Lite averages 4.8 out of 5 from 135 ratings, while SternbergTests averages 1.0 from 1 ratings.
Do Number Therapy Lite or SternbergTests have ads?
Neither Number Therapy Lite nor SternbergTests shows ads.
Which is updated more often, Number Therapy Lite or SternbergTests?
Number Therapy Lite ships an update every 5 months, and SternbergTests every 9 months. Most recently, Number Therapy Lite was updated on October 24, 2026 and SternbergTests on October 18, 2026.

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