Modal Math vs SignChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modal Math
This app provides accessible math practice designed by teachers for students with special language needs. It focuses on fostering conceptual understanding and reinforcing mathematical language for diverse learners.
- Designed by teachers
- Accessible for special language needs
- Fosters conceptual understanding
- Reinforces mathematical language
- Supports diverse learning needs
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Learn from anywhere in the Modal Math app! Created by real teachers for real students. At Modal Math, we believe that math learning should to be accessible for learners with special language needs. We aim to create a tool that is makes math learning accessible and meaningful to all. The goal is to foster conceptual understanding of mathematics while establishing and reinforcing language for students with diverse learning needs and ability levels. Our dream is to provide access to learning forstudents in accordance with their needs. Until we do this, we can never know what a student is capable of. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SignChat
Learn sign language through interactive lessons and visual aids. This app offers a fun and accessible way for children and families to acquire new communication skills. Unlock advanced features and track progress with a premium subscription.
- Step-by-step lessons
- Visual flashcards
- Multilingual support
- Progress tracking
- Emotion analysis
- Exclusive content
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SignChat makes learning sign language fun and accessible for kids and families — with step-by-step lessons, visual flashcards, and multilingual support English. Basic features are free to explore. Unlock premium features with a yearly auto-renewable subscription: • Progress Tracking – Celebrate your achievements and learning history • Game History – Revisit and review completed games • Emotion Analysis – Learn and recognize emotional signs • Exclusive content and upcoming advanced lessons Subscription: $139.99/year with 3-day free trial. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Privacy Policy: https://signchat.online/privacy/ Terms of Use: https://signchat.online/terms/
Screenshots
Verdict
The clearest difference is ads: Modal Math at none against SignChat's shown. Modal Math also leads on iOS requirement (15.1 vs 18.2). SignChat's advantage is update cadence (weekly vs every 5 weeks). On price, in-app purchases, monetization model 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. Modal Math sells 2 in-app purchases, starting at $24.99 per month and SignChat sells 1 in-app purchase, starting at $139.99 per year. Whichever you choose, the download price is not the number that matters.
Modal Math ships an update every 5 weeks, SignChat weekly. Both last shipped on October 24, 2026.
| Parameter | Modal Math | SignChat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.2 |
| Further details — not scored | ||
| Size | 75 MB | 79 MB |
| Age rating | 4+ | 9+ |
| Developer | Asledu LLC | James Barba |
Customer experience
Modal Math
SignChat
In-app purchases
Modal Math
- Classroom Membership$24.991 Month
- DHH Teacher Resources$6.99
SignChat
- Annual Premium$139.991 Year
