Simple & cute
Clean design, adorable vibes, and genuinely fun interactions. Love it!
Free
In-App Purchases
About
This app visualizes your daily spending money as a tank of koi fish. As you log purchases, fish disappear, showing you exactly how much is safe to spend. It offers simple gestures for managing expenses and provides insights into your spending habits.
✓Visual spending tracker
✓Log expenses with gestures
✓Future expense planning
✓Spending insights
✓Privacy by default
✓No account required
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+2
What's New in Koi Coin
1.6.1
October 25, 2026
· Fixed a crash that could happen right after buying Plus. · Stability improvements.
4
Subscriptions & In-App Purchases
Koi Coin Plus Monthly
Full history, more future plans, and complete insights.
$3.991 Month
User reviews
Developer apps
FAQ
What is Koi Coin's main feature?
Koi Coin visually represents your remaining daily spending money as koi fish in a tank. Logging a purchase removes fish, clearly indicating how much you can still spend.
How does Koi Coin handle large expenses?
You can swipe left to 'bag' large expenses like rent or trips ahead of time, allowing you to plan for them without affecting your daily spending visualization.
Does Koi Coin require an account or collect data?
No, Koi Coin prioritizes privacy by default. It does not require an account, and your financial records stay on your device with no ads or third-party analytics.
What are the subscription options for Koi Coin Plus?
Koi Coin Plus offers monthly ($3.99/P1M) and annual ($15.99/P1Y) plans. The annual plan includes a 7-day free trial.
What benefits does Koi Coin Plus offer?
Koi Coin Plus unlocks full history access, allows for more future expense plans, and provides complete spending insights beyond the basic daily view.
Is Koi Coin available on multiple devices?
Based on the provided data, Koi Coin is currently supported on iPhone.
How often is Koi Coin updated?
The latest version, 1.6.1, was released on October 25, 2026, indicating recent development activity.
What is the age rating for Koi Coin?
Koi Coin has an age rating of 4+, making it suitable for a wide range of users.
