App Overview

Biorhythm Pro - measure the rhythm of your life icon

Biorhythm Pro - measure the rhythm of your life

Massimiliano Borrelli · Lifestyle

△△△△△ Biorhythm Pro △△△△△

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.0
27 ratings · Top 30%

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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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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> SELECT BUILD PLATFORM:

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

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Rork plan preview for Biorhythm Pro - measure the rhythm of your life: map the core Lifestyle 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

Enhance insights with more personalized recommendations and tips based on biorhythm data.

Assumption to check: Users find the insights section lacks depth and personalization.

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to create profiles to track multiple biorhythms.

Assumption to check: The app does not support multiple user accounts.

Validate with people who use this workflow before building.

Hypothesis 3

Integrate more sharing features across social media platforms.

Assumption to check: Limited sharing options for insights.

Validate with people who use this workflow before building.

Hypothesis 4

Improve visibility of premium features and offer a trial period.

Assumption to check: The paywall is not clearly communicated.

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

△△△△△ Biorhythm Pro △△△△△ Biorhythm Pro is a calculator of biorhythm cycles that will let you know every day the condition of your three primary biorhythm cycles, the physical cycle, the emotional cycle and the intellectual cycle and the 4 secondary cycles, the spiritual cycle, the awareness cycle, the aesthetic cycle and the intuition cycle. This way you can manage your life in the best way because you will always know how much energy to expect by all of your cycles. You can also calculate the biorhythm compatibility between you and another person discovering the percentage of compatibility for each cycle and the overall percentage of compatibility. This way you'll know what is your best partner in love, in business, in sports, in meditation, in arts and so on! You will also have a biorhythm calendar where you can discover the conditions of the three primary cycles and the 4 secondary cycles in any past or future date. Another useful special feature of Biorhythm Pro will give you monthly and annual statistics of the three primary biorhythm cycles, so you'll know which are the best days and the worst days of the year and for every month. Within the program you will also find a detailed guide with images to better use the app. It is well known that our lives are strongly influenced by the biorhythm cycles, so it will be very helpful to know in advance the conditions of your three primary cycles and your 4 secondary cycles or your biorhythm, it will certainly help you in any sphere of your life! Strengths of Biorhythm Pro ------------------------------ ▷ Primary cycles: physical, emotional and intellectual ▷ Secondary cycles: spiritual, awareness, aesthetic and intuition ▷ Unlimited dates of birth ▷ Calculates the compatibility between two dates of birth ▷ Calculates the best and worst days for a date of birth ▷ Biorhythm calendar to know before the conditions of the cycles ▷ A guide with pictures that will explain in detail how to use the app ▷ Languages: English, Spanish, Italian ▷ Universal App: for iPhone 4, 4s, 5 and iPad

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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.

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BUILD KIT DIFFICULTY
Starter

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.