4V3D

A family app studio · Tallinn, Estonia

Seriously good apps from the land of the unicorns 🦄

We're 4V3D, a small family dev company in Estonia. We don't build apps to farm your attention. We build the ones we wanted at home and couldn't find done right: chores that finally get done, every dinosaur ever, a flag for every country, a diary for the pets and a fair little game for two. In up to 64 languages, no ads, ever.

Minute Mission

For families and daycares · iPhone, Android and web · Live in 33 languages

Chores can now grant wishes.

No more nagging, no more "I already did it!" Every chore becomes a mission worth points, and points buy the wishes your kids actually care about: screen time, sweets, a day out. You set the missions and the prices. They do the rest, and suddenly the bins go out on their own.

Free for one child, five missions and one reward. No card needed.

  • ⭐Missions pay in pointsMake the bed, walk the dog, homework. Each one worth what you decide.
  • 🎁Points become wishesScreen time, a treat, a trip. Kids save up and choose for themselves.
  • ⏱️Mission timerTurn "tidy your room" into a race against the clock.
  • 🌅Morning to eveningMissions sorted into morning, anytime and evening, so the day has a rhythm.
  • 📶Works offlineOut at the summer cottage with no signal? Keep going, it syncs later.
  • 🔒Grown-ups run itNo child accounts, no ads, no trackers. Kids never need a phone of their own.
  • 🏫A web version for daycares and kindergartensTeachers already notice the good things. Now they add up: a shared star board for the whole group, working toward a reward together. 25 € per group a month, 30 days free. See Minute Mission for daycares →
Dino Wiki icon

Dino Wiki

For dino fans of every age · Live in 64 languages · app coming soon

Every dinosaur. Ever.

2,027 dinosaurs, flying reptiles and sea monsters, in 64 languages. Cute on top, real science underneath, and every fact with a source. Now with battles, races, a sticker album and quizzes even toddlers can play. Built by a dad for his dino-mad son, and free for every kid.

Free on the web, with no ads, no cookies and no trackers.

  • 🦖2,027 prehistoric animals1,471 real dinosaurs plus 556 flying and sea cousins, from fossils found in 87 countries.
  • 🌍64 languagesFrom Estonian to Icelandic to Zulu. Kids read about their favourite dino in their own language.
  • ⚔️Dino battle1 on 1 up to 3 on 3, with any of the 2,027. Who would win? Just for fun, not science.
  • 🏁Dino raceUp to four dinos over 100 metres at their real top speed. And you can race them yourself.
  • 🎲What dino are you?A few quick questions, then share your dino card with friends.
  • 🧸Quizzes for the littlest fansPicture quizzes with no reading needed, one for ages 1 to 3 and one for 3 to 6.
  • ⭐Sticker albumPlay the quiz, battles and races to collect stickers and badges. New surprise stickers every day.
  • 🔎Real science underneathEvery fact has a source. TOP lists, a timeline from Triassic to Cretaceous, and a "Surprise me" button.
  • 📱The app is comingEvery dino, every picture and the games in your pocket, even without internet.

TerraKids

For kids aged 3 to 13 · Android and iPhone coming soon

Every flag has a story.

A flag puzzle for kids. Drag each flag onto its country, hear its name out loud, and learn the little story that makes it stick for good. Calm enough for a 3 year old, hard enough for a 13 year old.

Every flag map is free. Pro is €9.99 once, with a 7-day free trial. No subscription.

  • 🌍198 countries and places6 continents to fill, plus all 51 US state flags with Washington, DC.
  • 🔊Hear every nameNames are said out loud, so kids who can't read yet can play alone.
  • 💡A wrong answer is a winA wrong drop is never a fail. TerraKids says which country that was, then tells the right flag's story.
  • 🎉No timers, no losingRounds of six, a little party at the end of each, and a fuller map every time.
  • ✈️Works anywhereEverything is inside the app. In the car, on a plane, at grandma's.
  • 🧠Made for every kind of learnerShort rounds, instant feedback and a story for every flag, including for kids with ADHD.
  • 🚀20 extras in ProSurprise trivia, riddle hunt, tricky flags, a sibling duel on one tablet, a flag builder and more. Up to 6 kid profiles.
  • 🔒No ads, no accounts, no trackingKids never type a name or an email, progress stays on your device, and a grown-up check comes before any buy button.

Furry Diary

For pets and their people · Live in 33 languages · app coming soon

Your pet's whole life, happily remembered.

Nails, baths, vaccines and birthdays for your dog, cat, rabbit, bird or fish. One tap to log, a care plan made for the breed, and gentle reminders when something is due. Plus an AI that actually knows your pet.

The breed atlas, the quizzes and Furry Diary AI are free to try on the website right now.

  • 📚2,167 animals, every fact sourcedAlmost every breed in the world, from Golden Retrievers to axolotls.
  • 🗓️A care plan made for the breedNails, baths, ear checks and more, with friendly reminders when something is due.
  • ✨Furry Diary AIA breed-aware companion with memory that reads the whole diary. Not a vet, and it says so.
  • ☀️Walk windowBreed-aware weather advice for the best time to walk, so paws stay happy on hot days.
  • 🧳Invite a babysitterThey see the care plan and routines for the dates you pick, then access ends by itself.
  • 🎂A portrait every birthdayBecause every year together deserves a picture.
  • 🎲7 fun quizzesWhat pet would I be? Is your cat plotting against you? Your pet's job interview, and more. Share your card when you're done.
  • 💜Free forever for the everydayEvery pet, the care plan, reminders, the diary, weight and household sharing, all free. Plus is planned at €6.99 a month or €49.99 a year.

Couples Jar

For two · Android and web, iPhone soon · Live in 33 languages

I will if you will.

You write what you'd love them to do. They do the same. You agree what everything's worth, then you both go and earn it: breakfast in bed, a lie-in on Sunday, an evening that's all yours. It's the sweetest deal you'll ever make, and you both get to win.

Free to start, with no clock on it. One purchase covers both of you.

  • 🤝Nothing without two yesesEvery wish, every price, every "done" is agreed by both of you.
  • 🫙Earn it, then spend itDo their wishes, collect points, cash them in for yours.
  • 📅Pick the dayA claimed reward gets a real date, so it actually happens.
  • ⚖️No scoreboardNo record of who did more. Spent points are gone, and a quiet month costs nothing.
  • 💌The keepsake jarTwo sealed notes, written early on, opened together months later. Part of the full jar.
  • 🔐Just the two of youWhat you write stays in your jar. No ads, and there never will be.
  • 📝Feels like paper, works like an appCream paper, handwritten slips, one highlighter. In 33 languages, with dark mode for late-night planning.

Built for our own home first

Every app started as something we wanted at home. That's still the test for every feature.

No ads. Ever.

Not in any app, not later, not "just a small one". You're the customer, not the product.

Your data stays yours

No trackers, nothing sold. Each app collects only what it needs to work.

Made in the land of unicorns

Estonia builds world-class tech. We hold every app to that same bar: fast, polished and built to last.