Instant delivery by email
Finally take control of your budget in 15 minutes
A smart Google Sheets workbook to manage your budget over 12 months.
Buy now — 15€
Everything you need to steer your money
Five strengths designed to make budgeting simple and clear.
4,9 / 5
User reviews
5 languages
FR · DE · EN · ES · IT
10 accounts
Bank accounts supported
Instant
Delivery after purchase
Secure
Stripe & Paypal
How it works
Just three steps: you buy the workbook, set it up in fifteen minutes in your Google Drive, then record your transactions.
From the very first month, your budget finally becomes clear and you know exactly where your money goes.
Buy & Receive
Secure payment with Stripe and Paypal. You receive your workbook by email.
Set up in 15 min
Make a copy in Google Drive. Then set your parameters.
Track your budget
Record your transactions and start steering your budget.
See the workbook in action
Dashboard, navigation, transactions and charts in 90 seconds.
[ DEMO VIDEO 60–90s ]
Home Services Budget: Estimate, Categorize, and Track These Recurring Expenses
Take control of your home services budget: calculate the true cost, including expenses, categorize your spending, and track it month by month—no unpleasant surprises.
Budgeting for Single-Parent Families: Regaining Control Without Guilt
Build a solid budget for a single-parent household, use CAF and APL benefits as real tools to help you get by, and regain financial peace of mind when you’re managing everything on your own.
Managing Your Budget: How to (Finally) Get Started
You can manage your budget even without financial training. This four-step method starts with your actual expenses—not your ideal ones—to create a tracking system that stands the test of time.
Budget app or spreadsheet: Which one will really help you stick to your budget?
Budgeting Apps vs. Spreadsheets: An Honest Comparison of What Each Tool Does Well, Its Real Limitations, and How to Choose Based on Your Needs.
Why You’re Sabotaging Your Budget (and How to Stop Doing It!)
Why You’re Sabotaging Your Budget Without Even Knowing It: Present Bias, Normalization, Cognitive Dissonance, and Practical Ways to Overcome Them.
They took back control
Swipe to read all 15 reviews
I finally understood where my money went each month. In 2 months, I saved 300€!
Thomas, 28 ansDepartment Manager
We manage our shared budget without arguments. Everything is clear and visual.
Sophie & MarcPreparing a property purchase
Variable income? No problem. I always know where I stand.
Laura, 34 ansFreelance designer
Fifteen minutes of setup and everything was ready. I never had to touch a formula.
Karim, 41 ansMaintenance technician
I log my expenses from my phone right after leaving the store. It's become second nature.
Émilie, 26 ansNurse
At last a budget I keep up for twelve months straight. The charts hooked me.
Nicolas, 37 ansSales rep
My freelance income is irregular: the workbook handles it very well.
Sarah, 31 ansSelf-employed
We freed up 210€ a month toward the house deposit, without going without.
Julien & LéaYoung parents
I used three different apps. A single workbook replaced them all.
Marc, 45 ansLogistics manager
15€ once, no subscription: it changes everything compared to monthly apps.
Inès, 29 ansHR assistant
All ten of my accounts are tracked in one place, including the kids' savings.
Patrick, 52 ansPlumber
The savings tab kept me on track for my holiday goal without even thinking about it.
Chloé, 24 ansWork-study student
I see annual expenses coming a month ahead. No more nasty surprises.
Antoine, 39 ansTeacher
Support replied within a few hours to help me add a category.
Nadia, 47 ansShop manager
After six months, I cleared my permanent overdraft. The workbook had a lot to do with it.
Fabien, 33 ansDelivery driver
Frequently asked questions
Do I need technical skills?
None. If you can open a file and type an amount into a cell, you can use The NINJA BUDGET. All formulas and charts are already built and protected: you only touch the input cells. An illustrated guide walks you through the first setup step by step, and you never need to create or edit a formula.
Does it work with my phone?
Yes. The workbook opens in the Google Sheets app on iOS and Android, letting you log an expense in seconds, right at the checkout or the restaurant. Mobile entry is deliberately simple; for comfortably viewing the dashboards and charts, a computer or tablet screen is more pleasant.
Can I share the workbook with my partner?
Yes. Since the file lives in your Google Drive, you can share it with your partner and manage your shared budget together, each from your own device, with real-time updates. One licence corresponds to a single purchase, however: it covers your household but does not allow redistributing the workbook to third parties.
Is my data secure?
Completely. The workbook is hosted in YOUR Google Drive and nowhere else: no banking data passes through our servers, and we have no access to your figures. There is also no connection to sync with your bank. You remain the sole owner of your information and can delete the file at any time.
What happens after purchase?
Once payment is confirmed, you immediately receive an email with the link to your workbook and the full documentation. You make a copy in your Google Drive, set up your accounts and categories, and you're up and running in fifteen minutes. If the email is slow to arrive, check your spam folder or write to us: support is included for life.
Are there hidden fees or a subscription?
None. You pay 15€ during the launch offer, 20€ afterwards, once, and the workbook is yours for good. No monthly subscription, no limited version, no feature locked behind a higher tier. Since Google Sheets is free, using the workbook will never cost you anything more later on.
Ready to take control of your budget?
Visualise, anticipate, reach your savings goals. A complete tool for just 15 €, delivered by email in 2 minutes. No subscription, no commitment, no risk.
Buy The NINJA BUDGET — 15€