Countries 195 vs SlideTutor

Countries 195 makes learning the world feel like a game. Learn all 195 countries and build connections between the facts that matter: Japan → Tokyo → Japanese Yen → Japanese → JP → JPN → +81 → Asia → UTC+9 Explore flags, capitals, populations, currencies, languages, country codes, regions and world time — then reinforce what you know through quick quizzes, flashcards and challenges. LEARN THE WORLD Explore all 195 countries in one searchable collection. Search by country, capital, currency, language, code or time zone and quickly discover the information connected to each place. MASTER THE ESSENTIALS Learn and practise: • Countries and flags • Capital cities • Population • Currencies and currency codes • Languages • ISO country codes • International calling codes • Internet country domains • Continents and regions • UTC offsets and time zones PLAY TO REMEMBER Turn geography into quick challenges with: • Flag Sprint • Country Chain • Capital Match • Capital Rush • Which Country? • Population Challenge • Time Traveller Practise both directions — recognise a country from its flag, find a country from its capital, identify currencies, compare populations and calculate the time around the world. UNDERSTAND WORLD TIME Learn UTC offsets, common time-zone abbreviations, seasonal clock changes and the International Date Line. Time Traveller asks practical questions such as: “If it’s 09:00 in London, what time is it in Tokyo?” BUILD MASTERY Countries 195 tracks what you have seen, what needs more practice and what you have mastered across different skills. Your goal is simple: 195 countries. One world. Learn them all. No account required. Learn at your own pace and watch your mastery of the world grow.

SlideTutor turns your slides and scripts into a live lecture — delivered by a lifelike digital human tutor with synchronized lip-sync. Import a PDF course or Markdown script, pick your tutor, and press play. The tutor reads every line aloud while slides advance in sync. Record the session or cast to a TV for classroom delivery. Everything runs on your iPhone or iPad. No internet, no accounts, no cloud. KEY FEATURES • Digital Human Tutor Choose from multiple lifelike digital presenters with natural lip-sync driven by their own voice. Your tutor is on camera, reading your script line by line. • Slide + Script Sync Import a PDF as slides and edit your lecture script in Markdown. Each script segment maps to a slide. The tutor reads while the correct slide shows — perfectly timed, every time. • Six Director Modes Switch between slide-only, tutor-only, or two-segment layouts. The director console lets you control focus mid-lecture — like a real classroom broadcast. • Screen Recording Tap REC to capture the entire lecture — slides, tutor, and subtitles — as a video saved to your Photos library. One tap, one take. • AirPlay to TV Cast the full lecture (slides + tutor + subtitles) to an Apple TV or external display. Perfect for classroom or conference delivery. • Subtitles & Multilingual Live subtitles appear in sync with the tutor's speech. Present in English, Chinese, Japanese, and more — switch languages to reach a global classroom. • Fully Offline Everything runs on your device. Your slides, scripts, voice, and footage never leave the phone. No internet connection, no account, no cloud processing. WHO IT'S FOR Teachers, lecturers, trainers, and anyone who needs to deliver a polished presentation with a digital presenter. SlideTutor is a lecture studio in your pocket. IMPORTANT • Tutors are virtual characters for educational presentation, not real people. • SlideTutor is fully offline and does not connect to the internet. • The tutor reads only the script you write — no AI-generated content, no external services. FREE & PRO SlideTutor is free to download. Each recording take is free for the first minute. Subscribe to SlideTutor Pro ($2.99/month) for unlimited recording length. All other features — importing, scripting, casting — are free. SUBSCRIPTION DETAILS SlideTutor Pro — 1 month, auto-renewable at $2.99/month. Cancel anytime via Settings → Apple ID → Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://huggingface.co/spaces/YueHuLab/slidetutor