InterSign vs ULAC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InterSign
Master Mexican Sign Language (LSM) with interactive lessons and engaging games. This app offers a structured learning path from beginner to advanced, with a comprehensive dictionary and glossary to reinforce your vocabulary. Earn rewards as you progress through the curriculum.
- Over 90 expert-made lessons
- Dictionary and glossary
- Progressive learning path
- Rewards system
- Interactive games and activities
- Sign variant updates planned
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* Over 240 lessons, 8 sections and more in development made by experts in Mexican Sign Language (LSM) to learn in an easy and fun way. * Signs may vary depending on where you live, we'll be adding sign variants in the near future. *Don't worry if you are a beginner, we will take you step by step on your Mexican Sign Language (LSM) learning journey. * Intersign includes a dictionary and glossary for you to reinforce your knowledge of (LSM). * Get rewards while you keep learning Mexican Sign Language (LSM). * Intersign has additional Activities and games for you to practice and continue learning Mexican Sign Language while you play. * Intersign was created to help anyone who wants to learn Mexican Sign Language. Feel free to reach out at contact@intersign-apps.com Any comments or suggestions are welcome. License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ULAC
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Comunicación instantánea, adaptada a tus necesidades. Una aplicación profesional desarrollada exclusivamente para tu escuela. Interfaz amigable para usuarios de todas las edades. La comunicación con alumnos, padres y profesores será más eficiente que nunca. Podrás enviar avisos, notificar eventos, tareas, ingresar y consultar calificaciones, ver galerías de imágenes, podrás estar al tanto de las novedades y noticias en tiempo real, donde estés y mucho más. Avisos, eventos, tareas, calificaciones, galerías, contacto, notificaciones y más. Control total desde cualquier dispositivo. En todo momento, en cualquier lugar.
Screenshots
Verdict
The clearest difference is in-app purchases: ULAC at none against InterSign's 2. InterSign's advantage is update cadence (every 3 weeks vs every 11 months) and device support. On price 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. InterSign sells 2 in-app purchases, starting at $4.99 per month. ULAC asks for nothing beyond the download.
InterSign ships an update every 3 weeks, ULAC every 11 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | InterSign | ULAC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (177 ratings) — better | — |
| Positive reviews | 89.3% of reviews | — |
| Number of ratings | 177 — better | — |
| Update frequency | Every 3 weeks — better | Every 11 months |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 143 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Intersign Apps, S.A. de C.V. | SCHOOL IBOX S.A.S. DE C.V. |
Bugs and requests
InterSign
Reported bugs
6 issues- App not downloading
- Images not loading in lessons
- Cannot select options in certain levels
- App freezes or crashes
- Cannot advance past block 4
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- Search bar not finding many words
Requested features
6 requests- More words and signs
- More dynamic activities
- More daily life vocabulary (tourism, games, art, school)
- Option to become a premium member
- More advanced content
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- Clearer explanation of Spanish to LSM structure
ULAC
Not enough reviews yet to summarise bugs or requests.
In-app purchases
InterSign
- Intersign Premium - 1 month3 Days trial$4.991 Month
- Premium Pass - 1 year3 Days trial$29.991 Year
ULAC
No in-app purchases
Questions
Is InterSign free?
Is ULAC free?
Which is updated more often, InterSign or ULAC?
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