App Overview

Pulsalarm icon

Pulsalarm

Bernd Rudmann · Health & Fitness

PULSALARM warns you via vibration or warning tone when you exceed your set upper and lower pulse limit and thus supports you in your pulse-based training

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.2
11 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 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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Pulsalarm: map the core Health & Fitness 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

Allow users to set their own heart rate thresholds.

Assumption to check: Limited customization options for heart rate zones

Validate with people who use this workflow before building.

Hypothesis 2

Integrate with Apple Watch or fitness trackers for real-time monitoring.

Assumption to check: No integration with wearables

Validate with people who use this workflow before building.

Hypothesis 3

Offer a one-time purchase option alongside subscription.

Assumption to check: Subscription pricing may deter users

Validate with people who use this workflow before building.

Hypothesis 4

Provide detailed statistics and trends over time.

Assumption to check: Limited history detail

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

PULSALARM warns you via vibration or warning tone when you exceed your set upper and lower pulse limit and thus supports you in your pulse-based training. You can train as usual with your favorite fitness or running app. All you need to do is install PULSALARM on your Apple Watch. Features of the Apple Watch App: - Vibration and/or warning tone when the set pulse limits are reached - Vibration and/or signal tone when returning to the set pulse range - Pulse limits can be deactivated individually - Large, easy to read display of the current pulse - Fast adjustment of pulse limits (also possible while running) - Works together with all known fitness, training and running apps that can be started on the Apple Watch - Does not write data to Apple Health - You can use the app on your Apple Watch without having your iPhone with you Features of the iPhone App: - Calculation of your maximum heart rate - Individual calculation of the 5 intensity ranges (depending on your maximum heart rate) - Adoption of the pulse limits from the training zones - Setting the maximum and minimum pulse limit - Large display of the current pulse Important note: without the use with an Apple Watch, the functional range of the app is limited, as no permanent pulse measurement can be carried out. No advertising, no tracking, no third-party codes. Developed with passion and programmed in Germany. Why use PULSALARM additionally? Many running apps include the pace as a target in their training plans. However, the same speed can mean a high intensity for one person and a low intensity for another. It is therefore helpful to consider your heart rate instead of speed to determine and maintain the right training intensity.  PULSALARM helps you to do this. It turns your Apple Watch into a heart rate monitor. What is the big advantage? You no longer have to look at your Apple Watch during your workout and still know whether you are exercising within your personal heart rate zone. Also ideal in colder months, when your Apple Watch is hidden under a jacket or long-sleeved shirt and you can't look directly at the display while running. For whom is PULSALARM suitable? - Ideal for run beginners, as they can control themselves better and protect themselves from overstraining. - Ideal for ambitious runners, as they can train more specifically in their intensity ranges and thus increase endurance and performance. - For all athletes and fitness enthusiasts who are interested in heart rate monitoring during their training with their Apple Watch. Summary: With the PULSALARM app on the iPhone you can determine your 5 intensity ranges based on your maximum heart rate. You can enter your maximum heart rate directly or have it calculated. Set your personal maximum heart rate limit, which you do not want to exceed during training, and your minimum heart rate limit. When these limits are reached, your Apple Watch will alert you by vibrating and/or beeping.

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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

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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
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.