Make a jar
Give it a name, a target and the month you need the money. Car insurance, $1,200, by March.
Sinking funds, made calm
Big bills,
no surprises.
SteadyJar splits every big yearly cost (car insurance, the holidays, the vet) into a small monthly amount. Set it aside, watch the jar fill, and the money is already there when the bill lands.
Free during early access · No bank login · Syncs across iPhone, Android and desktop
$1,200car insurance due in March
$144 a monthset aside from now
$0 stresswhen the bill arrives
How it works
Get your monthly number
SteadyJar works out what to set aside each month. The number holds still all month, so it doesn't jump around as you save.
Tap when you save
Moved money to savings? One tap logs it. Jars fill up, and anything coming due in the next two months is flagged.
Built for the bills that aren't monthly
Jars you can see
Every goal is a glass card in a Wallet-style stack, with how much is in it, how much is left and what to add this month.
A plan that holds still
The monthly amount is set at the start of each month. Saving early counts toward it; it never moves the goalposts.
Coming due
See which bills land in the next two months and exactly how much each one still needs.
Private by design
No bank login and no account. Your jars live on your phone, not on our servers.
Feels like an app
Add it to your home screen and it opens full screen and works offline, in light or dark mode.
Your currency
Dollars, euros, pounds, rupees and more. Amounts look the way your bank shows them.
New
Find my bills
Drop in a bank statement and SteadyJar finds your yearly and irregular bills for you, then suggests jars with the right amounts and due months. Monthly subscriptions are left out. The file is read on your phone and never uploaded.
Put it on your phone
iPhone
Open steadyjar.com/app in Safari, tap Share, then Add to Home Screen.
Android
Open steadyjar.com/app in Chrome, tap the ⋮ menu, then Install app.
Questions
What's a sinking fund?
Money you set aside a little at a time for a cost you know is coming, like a yearly insurance bill or holiday gifts. Instead of one big hit, it becomes a small monthly amount. SteadyJar calls each one a jar.
Does SteadyJar connect to my bank?
No. You keep your money wherever you like (a savings account works well) and log what you set aside. That keeps it simple and private.
Where is my data stored?
On your device, in the browser's storage, and nowhere else unless you turn on backup and sync. Bank statements you scan are never uploaded.
How do backup and sync work?
In Settings, sign in with your email (no password: we email you a code). Your jars are then stored on SteadyJar's servers, run on Cloudflare, so every phone, tablet and computer you sign in on shows the same jars. Changes made on two devices at once are merged, not overwritten. Sign-in emails are sent by Resend. You can delete your account and its backup at any time in Settings.
How is the monthly amount worked out?
At the start of each month, SteadyJar takes what the jar still needs and splits it evenly over the months left before it's due, rounded up to a whole amount. What you add during the month counts toward that number.
Does it cost anything?
SteadyJar is free during early access.
Start your first jar
It takes about thirty seconds.
Open SteadyJar