Number Therapy vs Mavis AAC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Therapy
Practice understanding, saying, and typing numbers to improve essential communication skills. This app helps stroke survivors and individuals with cognitive disorders build independence with number-related tasks like dates, money, and phone numbers.
- Practice understanding, saying, and typing numbers
- Covers dates, money, phone numbers, and more
- Thousands of unique exercises
- Customizable interface
- Progress tracking and recommendations
- Email progress reports for therapists
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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. ***Try for FREE with Number Therapy Lite*** “I really like it! The money and phone numbers – that’s what I need to practice.” – Sarah, stroke survivor with aphasia 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! 30 categories of numbers including: *Single Digits *Double Digits *Triple Digits *Four Digits *Time *Money *Phone Numbers (add your own!) *Ordinals *Fractions Thousands of unique exercises you can use anywhere. Work at your own pace to practice the skills that matter to you. Great for cognitive disorders such as impaired working memory or auditory memory, too! Listen to long numbers and type them in - it's harder than it sounds. Train the ear to listen with this app. 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 has a feature to give 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! "Number Therapy is a game changer for me. I love it." - Trish, stroke survivor with aphasia Speech-Language Pathologists: use this app 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! *Please note: this app does NOT address math skills or equations. It focuses on the communication of numbers, not calculations.
Mavis AAC
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Mavis AAC is a more capable, user-friendly alternative to the built-in Live Speech app for those using speech synthesis daily, particularly those with bulbar-onset ALS or other speech problems. Key Features: • Optimized for use with an external Bluetooth keyboard, so minimal reaching and touching are necessary. • History and keyboard shortcuts that make repeating a phrase easy when someone has misunderstood. • Supports iPhone/iPad. • Familiar chat-oriented interface. • Allows fixing the pronunciation of words - most often for people's names or nicknames. • Has multiple bell sounds for helping interject in a conversation or gain someone's attention. • Completely private - this app does not collect data. • Completely offline - this app does not require an internet connection once installed. Voices: • Supports any iOS system voice • Supports Apple's Personal Voice feature when enabled and supported by hardware • Voice, pitch and speaking rate can all be adjusted • Supports importing voice-banked recordings and playing them directly by matching text Telephony: • Supports voice synthesis in both phone and FaceTime calls Support: • Please consult the documentation available at https://lazybearlabs.com/mavis/ • Feedback and questions can be sent to support@lazybearlabs.com
Screenshots
Verdict
The clearest difference is price: Mavis AAC at Free against Number Therapy's $29.99. Mavis AAC also leads on update cadence (every 2 months vs every 4 months). Number Therapy's advantage is iOS requirement (9.0 vs 17.6). 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
Mavis AAC is free to download; Number Therapy costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Number Therapy ships an update every 4 months, Mavis AAC every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Number Therapy | Mavis AAC |
|---|---|---|
| Price | $29.99 | Free — better |
| Rating | 4.7 (268 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 268 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 164 MB |
| Age rating | 4+ | 4+ |
| Developer | Tactus Therapy Solutions Ltd. | Lazy Bear Labs LLC |
In-app purchases
Number Therapy
No in-app purchases
Mavis AAC
No in-app purchases









