App Overview

StarTimer icon

StarTimer

Saptak Sen · Productivity

Transform your productivity with StarTimer - the most beautiful and intuitive timer app for iOS.

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
1 ratings · Top 5%

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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Combine features and design from your favorite apps.

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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/
Preview a sample Build Kit No email needed

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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Free quick prompt For a smaller starting point

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 StarTimer: map the core Productivity 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 custom sounds and themes for timers.

Assumption to check: Limited timer customization options

Validate with people who use this workflow before building.

Hypothesis 2

Provide detailed statistics and reports on time usage.

Assumption to check: Inadequate reporting features

Validate with people who use this workflow before building.

Hypothesis 3

Introduce shared timers for team projects.

Assumption to check: No collaboration features

Validate with people who use this workflow before building.

Hypothesis 4

Add push notifications for timer reminders.

Assumption to check: Lack of reminders for timers

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

Transform your productivity with StarTimer - the most beautiful and intuitive timer app for iOS. SMART SCHEDULING & REMINDERS Never forget to start important activities again. Schedule reminders to start your timers at specific times - perfect for daily meditation at 7 AM, workout sessions at 6 PM, or focus blocks throughout your workday. Set one-time or recurring schedules that fit your routine perfectly. LIVE ACTIVITIES & DYNAMIC ISLAND Watch your timer progress in real-time without opening the app. StarTimer's Live Activities appear in your Dynamic Island and Lock Screen, keeping you informed at a glance. EXPRESS YOUR STYLE Choose from 20 beautiful icons and 13 stunning color themes. From meditation bells to cooking timers, find the perfect visual match for every activity. "HEY SIRI, START MY TIMER" Voice control makes timing effortless. Create custom Siri Shortcuts for your most-used timers and start them hands-free. FEATURES YOU'LL LOVE * Smart scheduling: Set reminders to start timers at specific times * Recurring schedules: Daily meditation, weekly workouts, custom routines * Live Activities for real-time progress tracking * Dynamic Island integration on supported devices * 20 beautiful icons: meditation, cooking, workout, study, and more * 13 stunning color themes to match your style * Siri Shortcuts for voice-activated timing * Haptic feedback for satisfying interactions * Premium design that feels native to iOS PERFECT FOR * Daily meditation reminders at your preferred time * Scheduled Pomodoro sessions throughout your workday * Cooking timer reminders for meal prep schedules * Workout interval scheduling for consistent fitness routines * Study session reminders to maintain learning habits * Meeting prep timers and scheduled break reminders PRIVACY FOCUSED Your timer data stays on your device. No accounts, no tracking, no data collection. Just beautiful, private timing that respects your privacy. Whether you need a daily reminder to start your 2-minute meditation, a scheduled 25-minute focus session, or automated workout timer prompts, StarTimer transforms time management into a beautiful, effortless experience. Download StarTimer today and never miss another important activity with smart scheduling and elegant design.

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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-native-svg
@react-navigation/native
Firebase
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.