Dumerzel
Sanliang Zhang Education iPhoneiPadiPod touch
Dumerzel is a free Education app for iPhone and iPad by Sanliang Zhang. Rated 5.0/5 from 2 ratings. Requires iOS 15.1. Updated August 14, 2026.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 61 MB
- Age 4+
- Updated
- Aug 14
- 2026 · v1.0.16
Screenshots
About Dumerzel
Dumerzel is a voice-first AI tutor - your personal Aristotle - that helps kids learn anything, hands-free. Ask a question out loud and get a clear, thoughtful answer instantly — no typing, no searching, no waiting. VOICE-FIRST LEARNING Just talk. Dumerzel listens, understands, and explains — like having a patient, knowledgeable tutor always available. Interrupt anytime to ask follow-ups. Switch between 5 unique AI personalities to find the voice your child connects with. POINT YOUR CAMERA AT HOMEWORK Stuck on a math problem? A science diagram? Point your camera and Dumerzel breaks it down step by step. Works with handwritten problems, textbook pages, and worksheets. COVERS EVERY SUBJECT Math, science, history, geography, literature, art, music, coding, philosophy, and more. From basic arithmetic to algebra, from biology to physics — one tutor for everything. 12 LANGUAGES Learn and ask questions in English, Chinese (Simplified & Traditional), Japanese, Korean, Spanish, French, German, Italian, Portuguese, Russian, and Arabic. BUILT FOR FAMILIES Create profiles for each child. Dumerzel remembers each learner's interests, strengths, and challenges to personalize every conversation. Parents get weekly progress reports showing what topics were explored and how learning is going. LIVE VOICE CONVERSATIONS Go beyond Q&A with real-time voice chat. Have natural, flowing conversations about any topic — Dumerzel responds instantly, just like talking to a real tutor. SAFE & PRIVATE Every response passes through an educational safety layer. No ads. Age-appropriate content only. Parents stay in control of AI behavior. FREE TO START Try Dumerzel free with daily questions. Upgrade to Pro for 1,500 questions/month, 300 vision requests/month, 300 mins live call/month, premium voices, and weekly reports. Privacy Policy: https://www.dumerzel.com/privacy Terms of Use: https://www.dumerzel.com/terms
What’s new
Version 1.0.16 · Updated August 14, 2026
- Improve CarPlay compatibility
App privacy
The developer, Sanliang Zhang, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contact Info: Name, Email Address
- Purchases: Purchase History
- Identifiers: User ID
Used for: Product Personalization, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction, Other Usage Data
- User Content: Photos or Videos, Audio Data
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Dumerzel | 5.0 / 5 (2 ratings) | Free | August 14, 2026 | |
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