App Overview

Canadian Qualifier Plus 4x icon

Canadian Qualifier Plus 4x

Calculated Industries · Finance

Advanced Canadian Residential and Commercial Mortgage Finance Calculator

$19.99 · In-app purchases

PRICE
$19.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
1 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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A product spec, screen plans, and build steps for your coding agent.

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What's included15 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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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 Canadian Qualifier Plus 4x: 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

Expand to include more financial calculations and scenarios.

Assumption to check: Limited calculation types available

Validate with people who use this workflow before building.

Hypothesis 2

Add graphs or charts for better understanding of results.

Assumption to check: No visual representation of calculations

Validate with people who use this workflow before building.

Hypothesis 3

Modernize the UI with updated design trends and animations.

Assumption to check: User interface feels outdated

Validate with people who use this workflow before building.

Hypothesis 4

Implement a community section for users to share experiences and tips.

Assumption to check: No community features for sharing tips

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

Advanced Canadian Residential and Commercial Mortgage Finance Calculator All the Power and Versatility of the Qualifier Plus 4x-Canadian – on your iPhone And while perhaps obvious, if you change from an iOS device to a non-iOS device, you WILL need to buy a new license as they are incompatible. •All the functionality of the Canadian Qualifier Plus 4x •Easily Toggle between U.S. and Canadian Interest •Email loan worksheets to your clients from your iPhone •No learning curve -- just one powerful, easy-to-use app •Full User's Guide built in as well as ability to press and hold a key for specific help Quickly and accurately solve residential real estate and mortgage questions. Unique loan qualifying feature helps you gain your client’s confidence and provides a professional approach to the “what-if” of any loan or investment scenario. You can even calculate amortization and loan data and e-mail it directly from the app screen on your phone. In addition to both common and advanced real estate finance problems and complete buyer qualifying, it calculates net present value, cash flows and internal rate of return (IRR). Even use this app for commercial investment calculations, metric-imperial conversions and calculating Canadian mortgage insurance. Ideal for all real estate finance professionals including agents, brokers, investors, mortgage lenders, title offices and trainers. Details: Built-in Solutions •Toggle between U.S. and Canadian Interest •Easy Qualification; Versatile Two-Loan Buyer Qualifying. (i.e. GDSR or TDSR); Actual Ratios •Complete Residential Real Estate Finance Solutions; Payments, Terms, Interest Rates, Total Finance Charges, Balloon Payments, Remaining Balances, Appreciation and Depreciation, Bi-Weekly loans, Future Values; Complete Amortization •Solve Total Interest, Principal, Remaining Balance and Total Finance Charges •Built-in Price and Down Payment Keys •Dedicated Tax and Insurance Keys; Property Insurance, Property Tax, Mortgage Insurance (i.e. PMI, MIP) •Can be used to enter Heat for "PITH" payments •Bi-weekly Solutions •Built-in Date Math; Closing and Expiration Dates •Triple Zero Key Saves Time and Keystrokes Special Functions •Amortization screen lets you see all amortization or loan data at once and e-mail it directly from the app screen on your phone •E-mail loan worksheets to your clients from your iPhone •Built-in help – just press and hold the desired key for full, clear definitions, explanations and examples of keystrokes •Triple Zero Key saves time and keystrokes •Entry Editing Backspace – with a swipe of a finger TRADEMARKS: Qualifer Plus® is a registered trademark of Calculated Industries, Inc.

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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
react-navigation
axios
redux
react-native-paper
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.