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Web creation studio · France

Small apps,
big ideas.

Games to share, clever tools, useful guides. Free, no account, in your language.

19live creations27languages0account needed
01 · Our games
Followoo on a phone

Followoo

Your influencer life, on your phone. Post, grow your followers, answer your messages and climb to a million.

followoo.bykrystaa.studio
game25 languages

The studio’s next games will land here, each at its own .bykrystaa.studio address

02 · Work

Live today.

  1. Cardiboo: home page on a computer

    Cardiboo

    game · 27 languages

    Make a funny animated card in 10 seconds: your face on a character, pull the lever, send it. Birthdays, farewells, scratch-off announcements, group cards.

    Open the site
  2. MyMiniBet: home page on a computer

    MyMiniBet

    game · 6 languages

    Create a friendly bet in 20 seconds, send the link on WhatsApp or Snapchat and find out who was right. Free, no money, no account, nothing to install.

    Open the site
  3. Tort ou Raison: home page on a computer

    Tort ou Raison

    game · 3 languages

    Racontez une dispute du quotidien, votre version et celle de l’autre. Les visiteurs et vos proches votent : qui a raison ? Gratuit, sans compte.

    Open the site
  4. Quiz Complice: home page on a computer

    Quiz Complice

    game · 4 languages

    Create your quiz in ten questions, send the link to your friends and find out who knows your little choices best. Free, no sign-up.

    Open the site
  5. Slime & Co: home page on a computer

    Slime & Co

    guide · 3 languages

    Easy, safe slime recipes, homemade playdough, squishies, fidget trading, a daily challenge and free tools to get your slime just right. No sign-up.

    Open the site
  6. Mon Petit Potager: home page on a computer

    Mon Petit Potager

    guide · french

    Que semer ce mois-ci, combien de terreau acheter, combien de plants par bac : calendrier mois par mois et outils gratuits pour un potager en pot ou sur balcon.

    Open the site
  7. Mon Chauffage Malin: home page on a computer

    Mon Chauffage Malin

    guide · french

    Calculez le coût de votre radiateur et comparez base ou heures creuses avec vos propres tarifs. Guides sourcés pour préparer vos décisions de chauffage.

    Open the site
  8. Mon Projet Murs: home page on a computer

    Mon Projet Murs

    guide · french

    Murs, terrasses et clôtures : peinture, papier peint, finitions, lames, plots et panneaux. Des mesures claires, des quantités expliquées et des guides pratiques.

    Open the site
  9. Cars & Friends: home page on a computer

    Cars & Friends

    guide · french

    L'agenda des rassemblements auto en France et pays voisins : cars and coffee, salons, courses historiques, avec dates vérifiées et outils gratuits.

    Open the site
  10. Artnaq: home page on a computer

    Artnaq

    guide · french

    Arnaque ou vrai message ? Chaque jour, une affaire décortiquée : le message reçu, les indices entourés, le bon réflexe et où le signaler.

    Open the site
  11. Buzzloo: home page on a computer

    Buzzloo

    game · 2 languages

    Free random draws with no sign-up: Secret Santa by link, spin the wheel, name picker, teams, giveaway winner, chores and a quiz buzzer.

    Open the site
  12. Coloroo: home page on a computer

    Coloroo

    guide · french

    Coloriages gratuits pour adultes à imprimer en A4 ou à colorier en ligne : portraits de femmes du monde, mandalas, coloriages mystères, anti-stress, chefs-d’œuvre…

    Open the site
  13. Iaboo: home page on a computer

    Iaboo

    guide · french

    ChatGPT, Claude, Gemini, Copilot, Perplexity, images, vidéo, API : de petites leçons interactives de 5 minutes, en français. Gratuit, sans inscription.

    Open the site
  14. Lifejoo: home page on a computer

    Lifejoo

    game · 2 languages

    Build your life one card at a time, collect smiles and send bad luck to your friends. Free, no account: play through a link or on your own against the computer.

    Open the site
  15. Net et Brut: home page on a computer

    Net et Brut

    guide · french

    Calculez votre salaire net à partir du brut (cadre, non-cadre, fonction publique), vos heures de travail et vos heures sup, avec les taux officiels de 2026.

    Open the site
  16. Oracoo: home page on a computer

    Oracoo

    game · 2 languages

    Who’s got the gift in your crew? Read the cards for your friends and predict a small event in their week: if it really happens, you win crystals. Free, no account.

    Open the site
  17. Tomojoo: home page on a computer

    Tomojoo

    game · 2 languages

    Change just one letter of the word in 30 seconds, then it’s the next player’s turn: live with friends, on WhatsApp or solo. Free word game, no account, 3 to 6…

    Open the site
  18. Top of the World: home page on a computer

    Top of the World

    game · 2 languages

    Post your videos, dodge social media scams and take the stage: every choice shapes your fate as an artist, with eleven endings. Free, no account.

    Open the site

Updated: November 10, 2026

03 · The story
01

A first name.

Krystaa comes from a first name: its founder’s.

02

Freedom.

The studio was born of a wish to create freely, on its own terms.

03

Lightness.

Simple, pleasant apps that make you feel good.

04 · Contact

An app idea? Let’s talk.