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Platform

One platform under every product.

We do not write the same job twice. Everything a product needs — sign-in, ads, leaderboards, chat, notifications, safety, matchmaking — is written once, published under its own version, and taken by every app that needs it.

  • Zaparo ID

    Sign in once and every app knows you. You start as a guest; signing in is a later choice, never a condition. Identity says who somebody is and never decides what an app may do.

  • ZaparoAds

    The ad network is part of the platform, not a third party bolted on. We run the slot code, the review, the counting and the advertiser's report ourselves, and outside app makers carry the same slot.

  • Content factory

    Levels, questions, word lists and game lines come out of one factory, in many languages. New levels arrive without waiting for an app update; every puzzle is proven to have one solution before it ships.

  • The same Kotlin, two screens

    The Android app and the browser version come from the same Kotlin source; the server side is TypeScript. That is why every game on this site opens in a browser.

Shared modules

Some come with a server of their own. Each lives in its own repository, under its own version. A fix in a module reaches every app at its next build; no app carries a private copy of its own.

Identity and people

  • MyZappserverThe visible identity: name, avatar, language and profile card.
  • FriendsserverAdding a friend by short code; the address book is never read.
  • PresenceserverWho is online right now, read the same on the phone and the server.
  • Player SafetyserverBlocking, reporting and text scanning, announced to nobody.
  • Rewarded referralserverAn invitation both sides earn from, claimed once.
  • InviteInvitation texts dealt evenly, so two can be compared.
  • QrinviteFace-to-face invites: show the code, scan it with the phone beside you.
  • CreatorsserverA permanent public page for something somebody made.
  • MomentsserverWhat a person did across the apps, read back as a profile and a feed.
  • ReactionsserverLight reactions to anything, from a fixed vocabulary.
  • Zaparo ChatserverMessage streams with read receipts, rate limits and a safety scan.
  • Quick ChatPreset phrases for multiplayer, translated per player; nothing to moderate.

Play

  • Zaparo ArenaserverLeaderboards: periods, ties, a correct around-me window.
  • Friend leaguesserverA private league for a group of friends, with its own periods.
  • Async turn-based duelsserverAsynchronous duels: invite, accept, play in turns, timed.
  • Zaparo LobbyserverThe pre-match room for real-time play, entered by code.
  • Zaparo RoomsserverGroup and room join codes, with membership.
  • Skill RatingA skill rating and fair matchmaking; the window widens while you wait.
  • Ghost OpponentsserverRecorded runs played as opponents; it always says it is a recording.
  • CastserverInvented opponents with a name and a face; a new game is never empty.
  • Zaparo NetcodeserverReal-time transport whose queue survives a dropped connection.
  • Match State EngineAn append-only move log; it notices when two devices diverge.
  • Replay & SpectateWatching a match afterwards, or while it is played.
  • Turn ClockA turn clock and time controls both players read the same way.
  • Fair RandomShared randomness two phones agree on and neither can steer.
  • Streak rescueserverA friend saves your broken streak; once.
  • ChallengeScore challenges that survive every share sheet.
  • SeasonTimed season events published without an update.
  • Progress & achievementsStreaks, daily statistics and achievements.
  • Milestone share cardsMilestone detection and share cards in the app's language.
  • GiftingserverSingle-use gift codes; redeemed exactly once.
  • GalleryserverHuman-moderated contests; one vote per account.

Content and words

  • Remote contentserverLevels, lessons and templates that arrive without an update.
  • BoardsSudoku, nonogram and minesweeper boards, hints and progress included.
  • Word KitThe on-device dictionary for word games, with difficulty bands.
  • ClueWhat a word means, in the player's language, written and spoken.
  • GamelineOne-line sayings for the moments a game names, in the player's language.
  • VoiceVoice clips per language; sequenced, interruptible, ducking the music.
  • Language choiceThe language the app speaks, chosen apart from the device's.

App shell

  • Theme kitOne brand colour in, a complete light and dark theme out.
  • Settings screen kitA settings screen built from what the app hands it.
  • Zaparo splashThe brand opening; plays while the app is already starting behind it.
  • UpdateA minimum-version gate; never locks the app when it cannot be read.
  • ConfigserverRemote flags and staged rollouts; a read never waits for a server.
  • App lockA PIN and a biometric lock for the app.
  • Share & exportShare cards and PNG, PDF and CSV export in one call.
  • "Made with" watermarkStamps the brand and the address on an image before export.
  • Story/post formatted exportsFits an image into a story frame before a platform crops it.
  • Media toolkitPicking, cropping, compressing a photo, and taking one.
  • Zaparo MapsPins that cluster on a map; photos attached by reference.
  • QR / barcodeQR codes: draw one, read one, move data between two phones with no network.
  • WidgetsHome-screen widgets that refresh without asking for a permission.
  • Zaparo BellserverReminders and push; waits for quiet hours, never drops a message.
  • Favorites & collectionsSaving, tagging and collections, on Android and in the browser.
  • Collaborative contentserverShared collections that work offline and resolve their own conflicts.
  • ZaparoLinkserverDeep links, deferred links and share previews.
  • App platform seamsThe jobs every app does at start-up, in one package.

Measurement and upkeep

  • AnalyticsserverOne event language across every app, checked in code.
  • Crash & diagnosticsCrash reports, structured logs and traces.
  • DebugA developer menu whose absence from a release build can be audited.
  • SchemaserverThe naming rules every event and trace conforms to.

More

  • Adkit
  • Avatar kit
  • Bot kit
  • Charts
  • Checkout
  • Cloud Saveserver
  • Creditsserver
  • Cut kit
  • Cutout kit
  • Desk shell
  • Draw kit
  • Editor kit
  • Energy
  • Fit check
  • Game Loop
  • Gen
  • Input kit
  • Juice kit
  • Kids
  • Learn kit
  • Motion kit
  • Nearby
  • Path
  • Physics
  • Place kit
  • Prices
  • Quiz kit
  • Scan
  • Search
  • Sign-in kit
  • Sound Mixer
  • Sprite kit
  • Store Review
  • TV kit
  • Vision kit
  • Wear kit
  • Web app shell