App Overview

YNAB icon

YNAB

You Need A Budget LLC · Finance

Have you ever worried about money? You are not alone

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.8
61,577 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included18 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for YNAB: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Simplify onboarding with guided tutorials and tooltips.

Assumption to check: Users often find the learning curve steep due to the budgeting system.

Validate with people who use this workflow before building.

Hypothesis 2

Introduce a more straightforward setup wizard.

Assumption to check: Recurring transactions setup can be confusing.

Validate with people who use this workflow before building.

Hypothesis 3

Enhance the reliability of the syncing mechanism and provide clearer feedback.

Assumption to check: Syncing issues with bank accounts and transactions.

Validate with people who use this workflow before building.

Hypothesis 4

Offer more customizable reporting features to meet user needs.

Assumption to check: Limited customization options for reports.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Have you ever worried about money? You are not alone. Download YNAB, get good at money, and never worry about money again. “We started YNAB January 1st with $37 saved and ended the year with $42,000. Plus we paid $14,000 cash for a new roof.” -Kyle, YNAB user since 2020 Start your free one-month trial and stop feeling like you’re bad at money. “YNAB has removed the stress of money from my life and in doing so has helped make me a better husband. It's like I got to remove a personal flaw I had never been able to fix." -Kyle, again. We didn’t even pay him to say this, but maybe we should. Why YNAB? -92% of YNAB users report feeling less stressed about money since starting. -The average user saves $600 in the first month, and $6,000 in the first year. “A year of YNAB costs less than a massage and is a heck of a lot better for reducing stress.” -Kat, YNAB user since 2016 Benefits and Features STOP ARGUING ABOUT MONEY …and start planning your life, together -Create and share unlimited plans with up to six people with one subscription -Real time updates between devices make it easy to keep everyone informed -Cheaper than couples counseling STOP DROWNING IN DEBT …and start seeing progress with your paydown -Make a plan to pay down debt by calculating time and interest saved with the Loan Planner -Avoid new credit card debt with YNAB’s clever built-in spending categorization feature -Enjoy the benefits of a debt-paying community and resources STOP FEELING DISORGANIZED …and start feeling totally in control -Securely link financial accounts to automatically import transactions -Easily add transactions manually, if you prefer -Ask Siri to update your plan or provide expense category balances on the go START REACHING MORE GOALS …and stop thinking your future is limited -Keep your priorities and goals in focus -Visualize progress as you go -Watch your net worth climb START SPENDING CONFIDENTLY …and stop feeling guilt, doubt, and regret -Calculate your “Cost to Be Me” -Make a flexible, proactive spending plan -Always know how much you have to spend START FEELING SUPPORTED …and stop feeling like you’re alone in this -Talk to our “freakishly nice” award-winning support team (don’t tell them we called them freakish) -Join workshops and attend live Q&A sessions -Become part of our community of genuine, amazingly supportive people who get it -Attend one of our live events to learn, share, play, and even get tattooed with like-minded getting-good-at-money people. (Seriously.) The first step of never worrying about money again is starting a free one-month trial. Are you ready to get good at money? (You seem ready! And we already really like you, so please join us.) Free for 30 Days, then Monthly/Annual Subscriptions Available Subscription Details -YNAB is a one-year auto-renewable subscription, billed monthly or annually. -Payment will be charged to iTunes Account at confirmation of purchase. -Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. -Account will be charged for renewal within 24-hours prior to the end of the current period. -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. -Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. You Need A Budget UK Limited is acting as an agent of TrueLayer, who is providing the regulated Account Information Service, and is authorized by the Financial Conduct Authority under the Electronic Money Regulations 2011 (Firm Reference Number: 901096) Terms of Use: https://www.ynab.com/terms/?isolated Privacy Policy: https://www.ynab.com/privacy-policy/?isolated California Privacy Policy: https://www.ynab.com/privacy-policy/california-privacy-disclosure?isolated

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
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Expo
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BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.