Koi: Daily Progress

Daniel Medcalf

In-app purchases

About this app

Koi – Build momentum. One day at a time.

Koi is a self-care app designed to help you stay consistent without pressure. Build routines, track goals, and complete everyday activities like exercise, meditation, or reflections, all in one calm, flexible space. Koi focuses on progress, not perfection, so you can keep moving forward even when life gets busy.

Why Koi?
In Japanese culture, the koi fish (鯉) represents perseverance, strength, and transformation, swimming upstream against strong currents, one day at a time.
“Koi” (恋) also means love. Building habits is an act of self-care. Small, repeated actions are how real change happens.
Koi is designed around that idea.

What you can do with Koi
• Create daily habits and set reminders
• Set personal goals with milestones and track progress
• Write reflections with photos and audio
• Create simple, structured and nested lists
• Track mood, water, food, exercise and more
• Build custom trackers for anything you want to measure
• Use focus timers and meditate with natural sounds
• Personalise your experience with beautiful themes
• View your progress over time
• Keep everything organised in one place

Your Koi Pond
Collect coins and feed your koi. Watch them grow from fry to elder as you build consistency. Each one a living reflection of your progress. Name them, care for them, and raise your collection one day at a time.

Designed to feel natural
Koi is built to be lightweight, distraction-free, and easy to return to, even after time away. Whether you’re starting a new routine or rebuilding one, Koi meets you where you are.

Who Koi is for
• Anyone building habits without pressure
• People who struggle with strict streaks
• Users who want simple structure, not complexity
• Those who prefer a calm, simple design

Build momentum. One day at a time.

Privacy & Terms
Your privacy matters.
• Privacy Policy: https://koi-calm.app/privacy
• Terms of Service: https://koi-calm.app/terms

Contact
If you have any questions or need support, feel free to reach out:
Email: [e-mail]

Ratings and reviews

I really like this app. It helped me a lot with my daily routine, and I really like the art style (I also like how theres no ads). However, I really wish you could disable quests because I really hate how I get about 90% of my coins from doing stuff in the game, that doesn't help me in real life. I also wish you could customize the amount of gold you get per habit. Other than that it's a really good app, and I think it deserves much more than 5k+ downloads

Taking care of myself and my surroundings is so much easier with Koi. It's so cute, and it makes me happy taking care of my little fish. It's adorable, ad free, and mental health focused. The free version is everything you need, but I would love to pay for a lifetime premium version some day, so I can show my support to the developer :) Thank you for making this app <3

I'm terrified of this app going down or enshittifying, because it is AMAZING. Cute and mostly easy to navigate interface, no ads, all of the most important features are not paid, and the gameification isn't combat-based or based on anything more complex than gathering koins, which is SO much easier for an anxious cluttered mind. There are no real penalties, which encourages rewards without turning them into punishments (even streak can be turned off). It's perfectly made for a cozy collector.

What’s new

We've polished the pond

Bug fixes to keep the water clear.