A budget app,
made by one person.
I wanted to know simply what I had left at the end of the month, and to share the costs of a home without putting my whole budget on the table. I could not find the tool, so I built it.
One person
fleen is designed, built and run by Alexandre Pletty, sole trader.
In Saint-Étienne
The app is made in France, and its data is hosted in the European Union.
Launched in 2026
On iPhone and Android since 5 October 2026, in English and in French.
Knowing what's left, without spending the evening on it.
To know what you have left at the end of the month, you only need your income, your fixed bills and what you have spent. fleen puts those three together and gives you one figure, what you have left, updated with every expense.
Learn more
Sharing the rent without showing your salary.
The household came next. Living together should not mean merging everything: fleen splits shared bills to the cent, says who owes what with as few transfers as possible, and stops there.
Learn more
An independent app that grows with you.
No advertising, no data to sell: fleen lives on its subscription, and each version follows what you ask for. Every change is published in the changelog.
See what's newThe rules I hold to.
They are not options to switch on: they are how fleen is built.
A budget each
The household sees what is shared, never the rest. Each person's personal budget stays in their account.
To the cent
Every shared bill is split to the cent, and the leftover cent goes to someone, never lost.
Next month
A decision never rewrites the current month or the past: a new split applies from the following month.
A clear price
One subscription for the whole household, no hidden tier. The personal budget is free with no limits.
Hosted in the EU
Your data stays in Europe, is used only to run the app, and nothing is sold.
Your data is yours
Everything can be exported and deleted from the app, for everyone, free.
Where fleen is going.
- 1
The launch
On 5 October 2026, fleen arrives on iPhone and Android, in English and in French.
- 2
Bank connections
They are coming: the free plan will connect one bank, and fleen Pro as many as you like.
- 3
Your ideas
A request, a bug, a wish: I read everything, and what comes up often arrives in the next versions.
Questions about fleen.
Who makes fleen?
Alexandre Pletty, a sole trader in Saint-Étienne, France. I design it, build it and answer messages myself.
How does fleen make money?
With the fleen Pro subscription, and nothing else. No advertising, no selling data, no commission on your spending.
Where is my data?
In the European Union. It is used only to run the app, and you can export or delete it at any time from the settings.
Can I suggest an idea?
Yes, and that is what moves the app forward. Write to me: I read every message.
How do I contact you?
By email, in English or in French. I am the one who answers.
Write to me.
A question, a bug, an idea: I answer myself, in English or in French.
What they say.
top
AAline PltUne application indispensable pour gérer son budget ! Une application vraiment utile au quotidien !
BBlandineM42