App Overview

Harpa Cristã icon

Harpa Cristã

Casa Publicadora das Assembleias de Deus · Reference

Não há dúvida da importância do louvor a Deus no culto pentecostal, no qual se destacam os hinos da Harpa Cristã.

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.8
5 ratings · Top 50%

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 included13 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 Harpa Cristã: map the core Reference 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

Implement advanced search filters for better user experience.

Assumption to check: Limited song search functionality

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to categorize or tag favorite hymns.

Assumption to check: Favorites not organized

Validate with people who use this workflow before building.

Hypothesis 3

Cache hymns for offline access.

Assumption to check: No offline access to hymns

Validate with people who use this workflow before building.

Hypothesis 4

Add font size and background color options for better accessibility.

Assumption to check: Limited customization options

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

Não há dúvida da importância do louvor a Deus no culto pentecostal, no qual se destacam os hinos da Harpa Cristã. Em seus primórdios, as Assembleias de Deus cantavam os tradicionais hinos protestantes, mas havia a necessidade de letras que enfocassem as verdades pentecostais e refletissem seu fervor. Começam, então, a surgir compositores e tradutores pentecostais. Muitos desses hinos expressavam a fé no revestimento de poder pelo batismo com o Espírito Santo, ressaltavam necessidade de devoção e santificação na vida do crente, e falavam da iminente volta de Jesus. Em 1922, foi lançada em Recife (PE), a primeira edição da Harpa Cristã, que viria a tornar-se hinário oficial das Assembleias de Deus. Desde 1941, a CPAD tem publicado, revisado, ampliado e divulgado a Harpa Cristã. A Harpa Cristã tem sido o instrumento de consolidação nacional do louvor pentecostal, principalmente por meio do cântico congregacional. Ao longo de seus 90 anos de existência, muitos dos belos e edificantes hinos da Harpa Cristã, ultrapassam as fronteiras assembleianas, tocando os corações de milhares de crentes de outras denominações evangélicas brasileiras, alcançando o honrado posto de hinário mais conhecido e amado em todo o país. E agora, a CPAD possui a satisfação de lançar este aplicativo que disponibiliza a Harpa Cristã para iPhone e iPad, levando o louvor a Deus para novas fronteiras tecnológicas. Recursos gerais: - Pronto para as telas retinas de 3,5" e 4". - Pesquisa de hinos por título, autor e coro. - Marque os seus hinos favoritos - Botão dedicado para mostrar o coro - Aplicativo Universal: Roda no iPhone, iPod e iPad. - Opção de controle do tamanho da fonte para facilitar a leitura. - Compartilhamento nas redes sociais e email.

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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
React Native Async Storage
Shadcn/UI
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.