MathsEng vs VideoVault

Break the language barrier in maths learning! This app helps you understand and practice key mathematics concepts in English, while offering support in your native language. With quizzes, a multilingual dictionary, games, and videos, students and teachers can confidently explore topics like algebra, arithmetic, geometry, and more — across 6 European languages. Perfect for international learners, bilingual classrooms, and Erasmus+ projects.

VideoVault turns YouTube into a parent-curated library for your kid. You decide what gets in. The kid sees only what you approved — nothing else. How it works • In parent mode, paste a YouTube URL — a video, a playlist, or a whole channel — and pick how many videos to import. • Imports go to a review queue. Tap to preview, then approve or reject. Tag, sort, and organize however helps you. • Switch to kid mode (the default on launch) and your child sees a clean, friendly home with the videos you approved. No suggestions. No autoplay into unrelated videos. No way out of the player to YouTube proper. What makes VideoVault different • Approval-only. Nothing reaches your kid until you've explicitly OK'd it. • No algorithm. YouTube's "up next" recommendations are hidden during playback. Your kid watches what you chose, in the order you chose, then comes back to your home screen. • One device, one kid. No accounts. No cloud. No multi-profile system to navigate. Each iPad gets its own library, curated for the kid using it. • You own your data. Everything lives on the device. Nothing is sent to our servers (we don't have any). Export your library as a JSON file at any time and import it onto another iPad. • Bring your own API key. Each install uses your personal YouTube Data API key, so usage is isolated to your family and effectively free. We walk you through the 5-minute setup. Built for the kinds of content that don't expire Educational videos, music, classic shows, how-to channels, nature footage — the kind of YouTube content that's just as good a year from now as it was the day it was published. There's no "fresh content" pressure, no notification spam about new uploads, no sync system. Curate once, watch forever. Parent mode includes: • A 5-tab control panel (Library, Review Queue, Sources, Tags, Settings) • Search YouTube directly from inside the app and add results in one tap • Default tags per source — automatically tag every imported video from a channel • Promoted tags that appear as their own row on your kid's home • PIN-protected mode switch with escalating-timeout protection against guessing • Export and import your whole library as JSON • Demo mode that lets you try the app before setting up an API key What we will not do: • Sell ads • Track your child • Recommend content • Sync your library to a server • Show "new uploads" notifications • Require any account, login, or subscription A tip jar in Settings supports continued development if you find the app valuable.