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DAYF! Budget App for Your Daily and Monthly Overview
The strength of DAYF lies in its simplicity – easy for everyone, with a clear and practical approach!

DAYF is the honest budget app for your everyday money. Completely offline and ad-free!
You instantly see your daily budget and know exactly how much you can still spend today.
Convert your expenses into working time – and you’ll immediately see if a purchase is worth it.

Simple, clear, and without subscriptions – the perfect way to save money and keep your finances under control.
THREE APPS THAT SHOW YOU THE TRUTH – RIGHT AWAY!

Know. Don’t guess.
Your day! Your money!
Your clear budget.

All 3 apps available in DE | EN | FR | ES | IT
DAYF – DAYF KIDS – DAYF SENIOR

“This is how DAYF shows you your daily budget, clear, simple, and completely offline.”

DAYF is the app that brings clarity to your everyday life, simple, direct, and without unnecessary features.
It consists of only four screens, covering everything you really need:

Daily budget with working time
See instantly how much money you have left for the day. Each expense is also shown in hours and minutes of work. An integrated saving function helps you put money aside with purpose.

Net income after fixed costs
All fixed expenses , rent, electricity, insurance (everything that’s deducted monthly) are subtracted. What’s left is your real available money, shown per day, hour, minute, and second. At a glance, you know what truly belongs to you.

Monthly budget with expense overview
Enter your key monthly expenses and deduct them from your income. You’ll always know how much remains , clear, straightforward, no calculations needed.

Vacation budget
Enter your total holiday budget. DAYF calculates your daily allowance, shows you your remaining money per day, and lets you add trips. This way, you always know what’s possible.

Check the description for details!

DAYF Kids Positive & Negative Voice Feedback

The only app with fixed voice feedback and daily budget reminders – designed to teach kids about money.

One screen, one number:
Kids instantly see their daily budget.

Voice feedback – positive or negative:

Positive: “Great job, you saved yesterday!” → Encourages kids when they stay within budget.
Negative: “That was a bad day – and a bad month.” → Warns when the budget is overspent.
Immediate reaction: “OH NO!” → Spoken the moment a purchase goes beyond the daily limit.

„The only app with fixed voice feedback and daily budget reminders – designed specifically to teach kids about money.

DAYF Kids is the simple finance app for children. It’s intentionally built with just one single screen, clear, easy to understand, and playful.

One screen, one number: Kids instantly see their daily budget.

Voice feedback: The app speaks in fixed sentences praising positive behavior or warning against overspending.

Predefined voice lines:

Positive (e.g., “Great, you saved yesterday!”) if the daily budget is respected.
Negative (e.g., “That was a bad day – and a bad month.”) if it is exceeded.
Immediate warning (e.g., “Oh no!”) if a purchase goes beyond the daily limit.

Learning function: Children understand early that money has limits , and that saving pays off.

No bank account, no ads, no complicated menus. Just one clear daily amount and direct feedback in child-friendly language.

“Kids instantly see: What’s left for today? No ads, no distractions – just clarity.” .

End of November:

DAYF SENIOR

DAYF Senior is designed specifically for older people – clear, simple, and without unnecessary complexity.
The app consists of three easy-to-use screens:

Daily budget
Shows the available amount for each day. Large font, clear layout, includes a saving function – without any extra features.

Expense calculation
Important daily expenses can be entered. The amount is automatically deducted from the daily budget, keeping everything transparent at all times.

Vacation budget
Enter the total holiday budget and instantly see the daily amount. Trips can be added to keep track of what’s left.

No bank connection, no ads, no subscription. Just large text, simple navigation, and maximum clarity.
Made for seniors – practical, safe, and easy to understand.

Know. Don’t guess.

“So simple, you only see:

What’s left for today?

And how much is still yours.”

All apps: No bank connection, no subscription, no hidden costs, no ads, no data collection in the background. Everything works offline. Pay once – use forever. Clarity instead of guessing. Simplicity instead of stress.

“Get your overview , simple, direct, honest.”

Know. Don’t guess.

YOU are in control!

!!!DAYF puts absolute value on privacy!!!

“DAYF was built to help you save honestly – with no ads, no subscriptions, and no data theft!

If you value that, we’d be grateful for your review.”

FAQ – Frequently Asked Questions

Why is there no cloud backup?
Because your data stays 100% safe on your device only. Nothing is stored on servers, nothing is sent to third parties. Setting up your fixed costs takes about 2 minutes. Daily entries take about 3 seconds. If you ever change your phone, you can simply set it up again, quick and secure.

Do I have to type in every single expense?
No. You only enter your current expense. Fixed costs are entered once during setup. After that, you just add what you spend, and DAYF instantly shows you what’s left for today.

Can I use DAYF on multiple devices?
Yes, but there is no sync – by design. You can install it on another device and set it up again within minutes. This way, no account, no password, and no personal data are needed.

What happens if I lose my phone?
No data is stored online, so you’ll need to set up DAYF again on your new device. That only takes a few minutes. Your privacy is protected at all times because nothing leaves your device.

How is DAYF different from other tools?

No bank connection.
No account needed.
No cloud, no sync, no risk.
No ads, no subscriptions, no hidden costs.
One clear number: what you have left today.
Extra views: holiday budget screen, expenses converted into working time, down to the second.