Semantra

Heat-seek the hidden word

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Follow meaning alone to reach the hidden word first. Read the constellation of meaning on the radar. Duel vs AI, online, or a nearby device. One-time unlock. Reach the hidden word before your opponent — using nothing but how CLOSE your guesses are in meaning. A fresh kind of word-guessing duel. Type any word and see its HEAT (0–100): how semantically close it is to the hidden target. The nearer the radar's centre, the hotter. Related words link up into a living "constellation of meaning." Follow the heat, read the connections, and close in. WHAT MAKES IT DIFFERENT - Win by meaning, not letter count or category - A heat radar where every guess sits by its closeness to the answer - Draft 3 self-insight items that change how you read the board MODES - vs AI — four strengths (Easy / Normal / Hard / Expert). - Online — 1-on-1 via Game Center - Nearby — two devices in the same place FEATURES - Deterministic, on-device scoring from 300-dimension meaning vectors. No LLM, no server — instant and consistent - The answer changes every game, so there's nothing to memorize - Japanese / English - Built-in How-to-Play in Settings PRICING Free to play. A one-time "Premium" unlock opens all items, the random loadout, Hard & Expert difficulty, and online matches. No subscription. Note: multiplayer is played between players using the same language setting.

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Text input fix Fixed an issue where the keyboard would close again immediately and no text could be entered, on devices using certain third-party keyboards (such as Shimeji). Move counter A round ends in a draw at 30 moves, so the move count is now always shown as "12/30" — and turns red for the last 5. Better item clues Meteor Search and Prism could surface words far too distant from the answer. Their reveals are now genuinely useful leads. Black Hole fix In duels, absorbed words vanished only from your own board. They now clear the opponent's board as well. Thanks for playing!

The developer, seiji honda, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • seiji honda
    Size
    • 90.4 MB
    Category
    • Puzzle
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Seiji Honda