VLibras vs HiDuck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VLibras
This application aids deaf individuals in daily communication and promotes the standardization of Brazilian Sign Language (LIBRAS). It's a tool developed by a university lab with government support to enhance accessibility.
- Facilitates daily communication for deaf users
- Promotes LIBRAS standardization
- Developed by university research lab
- Government-supported initiative
- Aids in sign language dissemination
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O VLibras é um aplicativo que faz parte de um conjunto de ferramentas que buscam ajudar os surdos em suas atividades diárias. Ele visa ajudar na comunicação e na disseminação e padronização da Língua Brasileira de Sinais (LIBRAS). Este aplicativo foi desenvolvido pelo Laboratório de Aplicações de Vídeo Digital (LAViD), da UFPB, com apoio do Ministério do Planejamento, Orçamento e Gestão (MPOG), Secretaria de Direitos Humanos (SDH) e da Rede Nacional de Ensino e Pesquisa (RNP).
HiDuck
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With Hi Duck, you'll never forget what you learned! This app combines the spaced review technique with learning tools that facilitate learning retention. Record audio explaining the content to your Rubber Duck – the "talk to your duckling" technique that facilitates memorization. Main Features: - Spaced Review: Receive reminders to review your audio recordings after 1 day, 1 week, and 30 days. - Smart Summary: After saving an audio recording, you can automatically generate a smart summary of what was said, available in your Notes for easy reference. - Gamification: Complete challenges, earn coins, and unlock exclusive accessories to customize your duck! - Complete Customization: Organize your studies with tags for each category and highlight your notes with colors, all to make your learning your own.
Screenshots
Verdict
The clearest difference is update cadence: HiDuck at every 10 days against VLibras's every 6 months. VLibras's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VLibras ships an update every 6 months, HiDuck every 10 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | VLibras | HiDuck |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 36.4% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 60 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Servicos e Informacoes do Brasil | Joao Mergulhao |
In-app purchases
VLibras
No in-app purchases
HiDuck
No in-app purchases
