Koibloom
See what the numbers say about you two.
A love calculator, compatibility test, and relationship timer made properly, not a random novelty page. Plus AI-written letters for when you need real words.
What You Get
Fun Calculators
A love calculator, compatibility check, crush calculator, and relationship timer, made properly, not just another cluttered novelty page.
AI Letter Generators
Love letters, apologies, birthday wishes, anniversary messages, and closure letters, in your own voice rather than a robotic template.
Real Relationship Advice
Guides on red flags, green flags, first dates, and conversation starters that actually apply to your relationship.
Words and Tools for Every Relationship Moment
Koibloom's calculators are the place to start: a classic love calculator, a name and birthday compatibility check, a crush calculator, and a relationship timer that counts down to your next anniversary. They're for fun, not for real answers, but they're made properly instead of feeling like a slapped-together novelty page.
Beyond the calculators, Koibloom helps you find the right words when you don't have them: a heartfelt letter, an honest apology, a birthday message that doesn't read like a card-shop template. The generators cover love letters, apologies, birthday wishes, anniversary messages, and breakup or closure letters, each one a real starting point in your own voice.
The guides cover the things that come up in real relationships too: red flags, green flags, conversation starters, first date ideas, and more.
Everything works without an account, and it's built to be just as easy on your phone as it is on a laptop.
Frequently Asked Questions
Is Koibloom free to use?
Yes — the calculators and generators are free to use. A premium option for more personalized results may come later, but the core tools stay free.
Are the calculators accurate?
They're for fun, not for real answers. Think of them as a lighthearted read on you two, not a scientific verdict on your relationship.
Do I need to make an account?
No. Every tool works without signing up.
Will the generated letters actually sound like me?
That's the goal. Every generator gives you a real starting point in your own voice; you edit it before you send it, not the other way around.
What happens to what I type in?
It's only used to generate your result — see our Privacy Policy in the footer for details.