Subnet Nano Tool vs Dubara

With this simple offline tool you can calculate the following based on IP-address and subnet bits: - Subnet mask - Broadcast Address - Network Address - Number of available IP-addresses

You can read it. You just can't produce it. Dubara hands you one real sentence, you translate it in your own words — no multiple choice, no word tiles — and an AI grades what you actually wrote in seconds, with a reason instead of a red X. That gap between understanding a language and using it is where most learners stall for years. Dubara is built for exactly that gap. HOW A SESSION GOES 1. You get a sentence at your CEFR level (A1–C2) on a topic you picked. 2. You type the translation. Any wording. Your own phrasing. 3. You get a score out of 100, a natural-sounding suggested translation, and specific tips — "'tomar' is more common than 'beber' when you're talking about having coffee" — not "incorrect, try again". 4. Tap any word you didn't know for a hint, star it, and it comes back as a flashcard before you forget it. ALSO IN THE APP • Today's news, rewritten at A2, B1 and C1 — tap any word for a hint, star it into your deck, then translate the whole article for points • The Daily Headline: one sentence a day, one try, the same for everyone learning your language pair — see where you stand • An AI tutor you can roleplay with: café, airport, job interview, doctor. It answers in your target language and corrects you gently • Spaced-repetition flashcards with Quiz, Match and Write games • Every sentence you've ever written, scored and searchable, plus accuracy by level and by topic so you can see where you actually break • Streaks, weekly quests, streak freezes and repairs for the weeks life wins • Home-screen widgets, offline practice and a listening mode • Made for iPhone and iPad • The whole interface in 15 languages — Arabic, German, English, Spanish, French, Hindi, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Turkish, Chinese WHAT MAKES THIS DIFFERENT Almost every language app grades you by recognition: pick the right tile, tap the matching word, choose one of four. That is easy to score automatically, and it is why you can hold a 400-day streak and still go blank ordering a coffee. Free-form production is the hard thing to grade, so almost nobody grades it. The apps that get close hand your sentence to a volunteer native speaker and you wait — minutes if you're lucky, hours if you're not, and only if someone happens to be online. Dubara grades the sentence you actually wrote, in seconds, every time, even at three in the morning, and tells you why. FREE AND PRO Free: a daily workout of graded sentences, one news translation and a short tutor chat a day, unlimited flashcards. Pro lifts the daily limits — practice, read and talk as much as you like — and unlocks every theme. Choose monthly, yearly (with a 7-day free trial for new subscribers) or a one-time Lifetime purchase. Pick your languages, tell us why you're learning and set your daily pace. A free account — email, Apple or Google — keeps your level, your streak and every sentence you've written in sync across your devices. Terms: https://dubara.io/terms · Privacy: https://dubara.io/privacy