App Overview

Easy Business Case Calculator icon

Easy Business Case Calculator

Blue Water Apps, LLC · Business

Easy Business Case Calculator allows the user to create a simple cash basis financial business case in minutes

$49.99

PRICE
$49.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
4 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 included16 files

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

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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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 Easy Business Case Calculator: map the core Business 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

Competitive pricing with generous free tier

Assumption to check: Expensive subscription

Validate with people who use this workflow before building.

Hypothesis 2

Focus on most-requested features first

Assumption to check: Missing features

Validate with people who use this workflow before building.

Hypothesis 3

Optimize for 60fps, fast load times

Assumption to check: Poor performance

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

Easy Business Case Calculator allows the user to create a simple cash basis financial business case in minutes. The user fills in easy to use forms to set revenue, expense, loan and tax assumptions. The app computes common business case metrics such as IRR, NPV, growth rates and required investment. The app also provides a detail 5 year business plan and a chart depicting the main elements of the 5 year plan. When complete , you can e-mail a business case template (in a Word document) with the financials sections populated with information from the app. There are help buttons throughout the app that guide the user on the meaning of terms used in the app, how to enter assumptions and how the results are determined. The app has a sample business case that comes with a set of pre-established assumptions that allows you to explore the assumption pages, understand the inputs and review the reports with realistic values already provided making getting started easy. The app has two demo videos included. These demo videos can also be found on YouTube. The first is a business case for starting a company and can be found here: https://youtu.be/24WXRkldvFU. The second is a business case for licensing a costly software tool. It can be found here: https://youtu.be/SgMyutBhXzg. In order to maintain the simplicity of the app, the app assumes the business case is accounted for on a cash basis. It is not meant to model business opportunities that require material accounting accruals or if there is a material lag in inventory turnover. Note: The easy business case calculator is a financial model. Financial models are simplified representations of what may happen in the future based on certain assumptions and the future may end up being similar or very different to the model results. The business case calculator is meant to be indicative. Every attempt has been made to document how the model uses the assumptions entered through the model's help functionality (ie the ? buttons next to each assumption / term). Blue Water Apps is not responsible for any errors or omissions, or for the results obtained from the use of the business case calculator. All information in the business case calculator is provided "as is," with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information. Blue Water Apps is not engaged in rendering financial, accounting, legal, tax or other professional advice and services. As such, it should not be used as a substitute for consultation with professional financial, accounting, legal, tax or other advisers. Under no circumstances shall Blue Water Apps or its affiliates be liable for any direct or indirect, incidental, consequential, special or exemplary damages arising out of or in connection with your access or use of or inability to access or use the business case calculator.

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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
React Native
Expo
Supabase
RevenueCat
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.