Build a budget planner app: Leanfinit vs Bolt.new

If you want a budget planner without paying for the tool that builds it, choose Leanfinit. It is completely free during the beta – no paid plans, no credit card, no watermark – and turns a plain-words description into a working app. Bolt.new also builds it, but on a metered token budget.

01Leanfinit, Bolt.new and the market leaders for a budget app

We compared the free option, the cheapest paid plan and the output of each tool as of October 2026. Leanfinit is the only one with nothing to meter.

Prices as of October 2026. Sources: Bolt.new pricing, Lovable plans, Replit Starter plan, Replit pricing, Cursor pricing, v0 pricing, Base44 pricing.

02What a budget planner really needs

A budget planner is a small app: a list of spending categories, a monthly limit for each, a quick way to log an expense and a running total. The hard part is not the code – it is getting the layout right so you actually open it after every purchase.

That means you will rework it several times. You rename categories, move the "add expense" button, split groceries from eating out. The builder you choose should make those rounds cheap, ideally free.

03Building the budget planner in Leanfinit

In Leanfinit you type what you want in plain words and get a working app in seconds. There is no coding and no servers, databases or hosting to set up or pay for. You sign in with Apple or Google, and that is the whole setup.

Changes work the same way: you describe them. "Add a savings goal at the top" or "show this month's total in red when I go over" is an edit request, not a ticket for a developer. When the planner feels right, one Publish button puts it on the web, and code export is there if you want the source.

Leanfinit builds apps with Flutter, Google's open-source UI toolkit, which renders its own widgets instead of using platform ones. For a numbers-heavy screen that you check daily, a consistent layout across devices is a practical plus.

04Building it in Bolt.new: the token meter

Bolt.new will happily generate a budget app too. The catch is the meter: the free plan gives 300K tokens a day and 1M a month, and unused free usage does not roll over (Bolt.new pricing, Bolt.new FAQ). Free sites also carry Bolt branding.

If you want your planner to store data in Supabase, that requires Pro or Teams, according to the Bolt.new FAQ. Pro starts at $25 a month as of October 2026 (Bolt.new pricing).

05Leanfinit vs Bolt.new on cost

Here is the irony of a metered builder: you are paying an unpredictable bill to build a tool that is supposed to make your spending predictable. Each revision of a budget planner is a prompt, and in Bolt.new each prompt spends tokens.

Leanfinit removes that line from the budget entirely. During the beta there are no paid plans, so the latest rewrite of your categories costs the same as the first: nothing. For a wider look, see Leanfinit's breakdown of what a personal app really costs.

06Where Bolt.new still fits

Bolt.new is built for people who want to see and edit code in the browser. It syncs with GitHub and can produce React Native mobile apps through Expo, with App Store and Google Play publishing through Expo/EAS using your own developer accounts (Bolt.new Git docs, Bolt.new Expo docs).

That is useful for a developer shipping a product. For one person tracking their own money, it is more machinery than the job needs.

07Why we'd pick Leanfinit for a budget planner

Our take is simple: Leanfinit gets you from idea to a usable budget planner fastest and at no cost, with no watermark on the result. Leanfinit spells out what "free" means there, and it is the main reason we rank it first.

There is also something coming that suits money apps well. The Leanfinit mobile app is in development and will generate apps that run on your device, with data staying on the phone; it is not available yet.

More comparisons: Leanfinit vs Bolt.new pricing and credit burn across Lovable and Bolt.new.