Expense Tracker & Budget: Kobu
MW-Development
Stay on top of your money – no account, no cloud, no subscription.
Kobu is the honest expense tracker and budget planner that keeps your data locally on your device. There's no sign-up and no bank connection – your financial data never leaves your phone. And you start right away: your first entry takes under ten seconds.
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2-TAP BOOKING
Tap a category, type the amount – done. No endless form, no required fields, no digging through menus. Booking becomes so fast that you actually do it every day instead of putting it off.
PRIVATE & ACCOUNT-FREE
Your entries, receipts and reports stay locally on your device – no cloud, no account, no login and no bank connection. Booking and reviewing work offline; only current exchange rates are fetched online when needed. That means maximum privacy, zero sync errors and no data loss. An expense tracker with no cloud, a budget app with real privacy – your numbers belong to you alone.
CASHFLOW AT A GLANCE
Income and expenses sit side by side as bars in your money manager – or as a table if you prefer. You instantly see which category weighs how much and whether you end the month in the black.
LIVE DONUT CHART
Your spending ring updates the very moment you book. Without any detour through a menu, you always see where your money is actually going this month.
STATISTICS
The sortable statistics table shows all categories over any date range you choose. The current month is included, longer ranges are unlocked with PRO.
BUDGETS AT A GLANCE
Set a monthly budget — one overall limit, or a separate cap for each category. A color-coded bar right on your home screen shows you instantly where you still have room and which category is about to break its limit. Completely free, no PRO needed.
TRUE MULTI-CURRENCY
Book in 31 currencies – on holiday or while shopping online. Kobu stores the original amount together with the exchange rate of the booking day, so your expense tracker stays travel- and inflation-proof and remains correct even years later.
ATTACH A PHOTO
Add a photo to any entry – the receipt as proof or a picture of the occasion. Your record stays right at hand, entirely on your device, without ever uploading a photo anywhere.
MONTHLY FORECAST & SAVINGS
Kobu projects your current pace and warns you in time: "At this pace you'll be over budget on the 24th." And you book savings like any other expense – to the built-in "Savings" category, with its own monthly budget and progress indicator.
RECURRING ENTRIES
Rent, subscriptions, salary or insurance – set them up just once. Kobu then enters them automatically at the right interval, so no fixed expense ever slips through your budget book.
KOBU HAMSTER & STREAK
Your hamster Kobu rewards you for staying consistent and counts your booking streak. Gentle motivation with no pressure, no annoying limits and no wagging finger.
6 LANGUAGES
Kobu speaks German, English, Spanish, French, Italian and Portuguese – and automatically matches your system language on first launch.
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BUY ONCE, NOT A SUBSCRIPTION
Kobu is free and funded by a discreet banner ad that keeps development going.
If you like Kobu, you unlock PRO with a single one-time purchase – no monthly subscription, no hidden fees, no fine print. Pay once, keep it forever:
• Ad-free – no more banners
• Statistics over any date range
• Unlimited accounts (Free: 2)
• Unlimited categories (Free: 12)
• CSV/JSON export of your data
• More category icons (Free: 30, PRO: 48)
Kobu is the honest expense tracker and budget planner that keeps your data locally on your device. There's no sign-up and no bank connection – your financial data never leaves your phone. And you start right away: your first entry takes under ten seconds.
━━━━━━━━━━━━━━━━━━━━
2-TAP BOOKING
Tap a category, type the amount – done. No endless form, no required fields, no digging through menus. Booking becomes so fast that you actually do it every day instead of putting it off.
PRIVATE & ACCOUNT-FREE
Your entries, receipts and reports stay locally on your device – no cloud, no account, no login and no bank connection. Booking and reviewing work offline; only current exchange rates are fetched online when needed. That means maximum privacy, zero sync errors and no data loss. An expense tracker with no cloud, a budget app with real privacy – your numbers belong to you alone.
CASHFLOW AT A GLANCE
Income and expenses sit side by side as bars in your money manager – or as a table if you prefer. You instantly see which category weighs how much and whether you end the month in the black.
LIVE DONUT CHART
Your spending ring updates the very moment you book. Without any detour through a menu, you always see where your money is actually going this month.
STATISTICS
The sortable statistics table shows all categories over any date range you choose. The current month is included, longer ranges are unlocked with PRO.
BUDGETS AT A GLANCE
Set a monthly budget — one overall limit, or a separate cap for each category. A color-coded bar right on your home screen shows you instantly where you still have room and which category is about to break its limit. Completely free, no PRO needed.
TRUE MULTI-CURRENCY
Book in 31 currencies – on holiday or while shopping online. Kobu stores the original amount together with the exchange rate of the booking day, so your expense tracker stays travel- and inflation-proof and remains correct even years later.
ATTACH A PHOTO
Add a photo to any entry – the receipt as proof or a picture of the occasion. Your record stays right at hand, entirely on your device, without ever uploading a photo anywhere.
MONTHLY FORECAST & SAVINGS
Kobu projects your current pace and warns you in time: "At this pace you'll be over budget on the 24th." And you book savings like any other expense – to the built-in "Savings" category, with its own monthly budget and progress indicator.
RECURRING ENTRIES
Rent, subscriptions, salary or insurance – set them up just once. Kobu then enters them automatically at the right interval, so no fixed expense ever slips through your budget book.
KOBU HAMSTER & STREAK
Your hamster Kobu rewards you for staying consistent and counts your booking streak. Gentle motivation with no pressure, no annoying limits and no wagging finger.
6 LANGUAGES
Kobu speaks German, English, Spanish, French, Italian and Portuguese – and automatically matches your system language on first launch.
━━━━━━━━━━━━━━━━━━━━
BUY ONCE, NOT A SUBSCRIPTION
Kobu is free and funded by a discreet banner ad that keeps development going.
If you like Kobu, you unlock PRO with a single one-time purchase – no monthly subscription, no hidden fees, no fine print. Pay once, keep it forever:
• Ad-free – no more banners
• Statistics over any date range
• Unlimited accounts (Free: 2)
• Unlimited categories (Free: 12)
• CSV/JSON export of your data
• More category icons (Free: 30, PRO: 48)
Developer email
info@wagma.de
Developer website
https://www.wagma.de/Released
Jun 25, 2026
Current version
1.7.5
Android version
8.0
Screenshots
