App Overview

Hear Baby Heartbeat - Pumly icon

Hear Baby Heartbeat - Pumly

Applogy · Medical

Hello, mama

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.5
236 ratings · Top 15%

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 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 Hear Baby Heartbeat - Pumly: map the core Medical 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 a guided tutorial for better usage.

Assumption to check: Users report difficulty in accurately capturing heartbeats.

Validate with people who use this workflow before building.

Hypothesis 2

Add customizable logging options and analytics.

Assumption to check: Some users feel the app is limited in logging features.

Validate with people who use this workflow before building.

Hypothesis 3

Simplify subscription explanations and highlight benefits.

Assumption to check: In-app purchase options can be confusing.

Validate with people who use this workflow before building.

Hypothesis 4

Incorporate articles and tips related to pregnancy and fetal health.

Assumption to check: Users desire more educational resources.

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

Hello, mama. Pumly is your gentle pregnancy companion a beautiful keepsake for the most magical chapter of your life. Capture the sounds of your belly, imagine what your future baby might look like, and save every milestone of the journey. — BELLY SOUNDS DIARY — Hold your phone gently against your belly and listen as Pumly amplifies the soft sounds of your changing body. Each session becomes a private keepsake recording you can save, replay, and treasure for years to come. — FUTURE BABY PHOTO — Curious who your little one will take after? Upload a photo of mom and a photo of dad, choose girl, boy, or surprise, and let Pumly's AI imagine your future baby. Save it. Share it. Smile every time you look at it. — PREGNANCY DIARY — Track your week, count down to your due date, and hold on to the small memories along the way. A calm, beautiful diary made for mamas-to-be — from the very first week to the very last. — WHY MAMAS CHOOSE PUMLY — • A calm, beautiful design made for the pregnancy journey • Recordings and photos saved privately, just for you • Daily companionship from the first week to the very last • Thoughtful milestones for every chapter • No clutter, no noise — just you and your little one — ABOUT THE SUBSCRIPTION — Pumly is a subscription-based app. An active subscription is required to access future baby photo generation, unlimited belly sound recordings, and the pregnancy diary. Your subscription renews automatically at the end of each period unless auto-renewal is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in iPhone Settings → Apple ID → Subscriptions. Any unused portion of a free trial, if offered, is forfeited when you purchase a subscription. — A GENTLE NOTE — Pumly is made for bonding, journaling, and keepsake purposes. It is not a medical device, and it is not intended to diagnose, monitor, treat, or replace any form of professional medical care. If you have any questions about your pregnancy or your baby's well-being, please speak with a qualified healthcare provider. — GET IN TOUCH — We'd love to hear from you. Privacy Policy: https://applogy.co/pumly/privacy Terms of Use: https://applogy.co/pumly/terms Support: [email protected]

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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
Zustand
expo-av
React Navigation
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.