App Overview

OT39 Old Testament Flashcards icon

OT39 Old Testament Flashcards

Walk Thru the Bible · Reference

OT39 Old Testament Flashcard visuals are an innovative and FUN way to learn the “big ideas” of the Bible!

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.9
11 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 included17 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 OT39 Old Testament Flashcards: 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

Include quizzes or interactive learning modes.

Assumption to check: Limited interactivity with flashcards

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to create their own flashcards.

Assumption to check: Lack of user customization options

Validate with people who use this workflow before building.

Hypothesis 3

Provide clearer explanations of what is unlocked.

Assumption to check: In-app purchase confusion

Validate with people who use this workflow before building.

Hypothesis 4

Add social sharing or leaderboards.

Assumption to check: Minimal user engagement features

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

OT39 Old Testament Flashcard visuals are an innovative and FUN way to learn the “big ideas” of the Bible! Learning the Bible can be fun! Eye-catching graphics filled with lots of hidden keys help unlock the big ideas of each book of the Old Testament. Once you discover each clue and learn the secrets to the key word visuals, you’ll be able to describe with incredible detail the major theme of each book of the Bible. You’ll be amazed at how much you’ll know and remember for years to come! The OT39 Old Testament Flashcard app is ideal for adults and children. Use for independent learning, Sunday school classes, home schooling, youth retreats, VBS, discipleship studies, in the mission field, and more! The OT39 Old Testament Keyword Learning SystemTM Series offers the following components: OT39 Old Testament Printed Flashcards Set, OT39 Coloring Book, and OT39 Slideshow Presentation. Also Available: The NT27 New Testament Keyword Learning Series which includes printed Flashcards, Flashcards Apps for iPhone and iPad, Coloring Book, and Slideshow Presentation. View the complete line of resources at www.walkthru.org or call 1-800-361-6131. The Keyword Learning SystemTM is brought to you by Walk Thru the Bible. Our goal is to ignite passion for God’s Word thru interactive live events, Biblical resources and global ministry. Find out what we can do for you! Learn more at www.walkthru.org If you like the Keyword Learning SystemTM, check out our Walk Thru the Old Testament Live Event and experience the Bible like never before! Learn more at www.walkthru.org/live-events. Features: 39 Flashcards with engaging illustrations on the front for each book of the Old Testament and explanations of the key facts about the book on the back (flip view). View the cards starting at the beginning or search to skip to a specific Old Testament book.

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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
Zustand
react-navigation
react-native-gesture-handler
react-native-reanimated
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.