IssieCalc vs SimpleSpeak AAC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IssieCalc
Read full descriptionHide full description
IssieCalc – Talking Accessible Calculator IssieCalc is an accessible, fully customizable calculator developed by the Beit Issie Shapiro Technology Consulting Center in collaboration with SAP Labs Israel. Designed for individuals with learning disabilities, visual impairments, motor impairments, or cognitive challenges, IssieCalc puts powerful personalization in the hands of users, caregivers, educators, and therapists. SHOW ONLY THE KEYS THAT MATTER * Choose exactly which keys appear. Every other key is hidden completely, allowing users to focus on the relevant keys. * For example, start with just the digits 1 to 5, plus, and equals, then add keys as skills develop. COLOR EVERY KEY YOUR WAY * Group keys and give each group its own key color and text color. * Highlight a single key, such as a number being practiced. * Make the exercise window stand out by choosing different colors for it. * Built-in templates, including high contrast for low vision. * Adjust the font size and weight. DIFFERENT NEEDS, DIFFERENT CALCULATORS * Create several calculators, one for each user, lesson, or stage of learning, and easily switch between them. * Show just the basic calculator, just the scientific calculator, or let the user switch between them. * Large, clear keys, in both portrait and landscape views. HEAR THE MATH * Turn on spoken feedback to hear what is entered: choose to hear each digit, each complete number, or both. * Hear the text in the exercise window at any time using the speak button. * Choose the language in the app settings. * Adjustable speech speed. * You choose how many digits to read after the decimal, so long answers stay short and clear. WHO IS IT FOR? * Students learning arithmetic step by step. * People with visual impairments. * People with motor difficulties who need large, uncluttered keys. * People with learning difficulties or dyscalculia. * Anyone who wants to customize their calculator’s appearance. ABOUT US The Technology Center at Beit Issie Shapiro is a leading hub for innovation in assistive technology. We promote the use of technology by and for people with disabilities to maximize their participation and quality of life. IssieCalc is one of our series of free apps designed to improve participation in communication, play, and learning. Read about them here: https://beitissie.org.il/en/applications/
SimpleSpeak AAC
This app provides an intuitive way to communicate when speaking is difficult. Users can quickly create and organize custom phrases into categories, or use pre-set options. Expressing thoughts is as simple as a tap, with features like customizable voices and eye-tracking control.
- Customizable phrase creation
- Categorization of phrases
- Choice of speech voices
- Eye tracking control (iOS 18+)
- iCloud sync across devices
Read full descriptionHide full description
SimpleSpeak helps you communicate when speaking isn’t possible, in a simple and intuitive way. Quickly create and organize your own phrases into categories that fit your needs, or choose from default categories to help you get started right away. Then, express your thoughts with just a tap. SimpleSpeak gives you everything you need to communicate, whether at home, on calls, or on the go: - Choose your speech voice, including Personal Voice - Customize phrases with color accents, labels, and more - Use eye tracking for hands-free control (iOS and iPadOS 18+) - Sync across devices with iCloud for seamless access
Screenshots
Verdict
The clearest difference is update cadence: IssieCalc at fortnightly against SimpleSpeak AAC's every 5 months. IssieCalc also leads on iOS requirement (15.5 vs 17.5). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IssieCalc ships an update fortnightly, SimpleSpeak AAC every 5 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.
| Parameter | IssieCalc | SimpleSpeak AAC |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Fortnightly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 17.5 |
| Further details — not scored | ||
| Size | 26 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Beit Issie Shapiro | Justin Risner |
In-app purchases
IssieCalc
No in-app purchases
SimpleSpeak AAC
No in-app purchases
Questions
Is IssieCalc free?
Is SimpleSpeak AAC free?
Do IssieCalc or SimpleSpeak AAC have ads?
Which is updated more often, IssieCalc or SimpleSpeak AAC?
Other comparisons















