App Overview

Contact Lenses Tracker Premium icon

Contact Lenses Tracker Premium

DOUBLE U s.r.o. · Medical

Keep your eye health in check with Contact Lenses Tracker, the ultimate contact lens tracking app

$29.99

PRICE
$29.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.7
38 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 included16 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 Contact Lenses Tracker Premium: 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 customizable notifications and reminders for lens changes.

Assumption to check: Users find it difficult to remember to change lenses on time.

Validate with people who use this workflow before building.

Hypothesis 2

Add a comprehensive lens care guide and instructional videos.

Assumption to check: Limited information on lens care practices.

Validate with people who use this workflow before building.

Hypothesis 3

Allow users to connect with eye care specialists for personalized advice.

Assumption to check: Lack of integration with eye care professionals.

Validate with people who use this workflow before building.

Hypothesis 4

Implement a feature for managing multiple lenses and their respective schedules.

Assumption to check: Difficulties in tracking multiple pairs of lenses.

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

Keep your eye health in check with Contact Lenses Tracker, the ultimate contact lens tracking app. Say goodbye to the risk of forgetting to replace your lenses on time and prioritize your eye health effortlessly. Simply input your lenses and let the app take care of the rest. This comprehensive tracking solution ensures you receive timely notifications as your lenses approach expiration, persistently reminding you until they are replaced. Bid farewell to extended wear and embrace responsible lens usage. • Stay informed: Always know when you started using your lenses and effortlessly track their lifespan. • Timely reminders: Receive notifications when your lenses are nearing their expiration date, so you can promptly replace them. • Individual lens support: Seamlessly manage both right and left lenses in case you loose one. • Accessory tracking: Keep tabs on essential accessories like solution, case, and eye drops, ensuring they are timely replaced as well. • Prescription storage: Safely store your prescription within the app for easy reference whenever needed. And users really love it: "This app is very helpful because it keeps reminding you to change your contacts until you do." "Does everything it should beautifully. Deep customization to fit my needs." "Always reminds me on the dot that my contacts have expired." "Best app I've used for tracking lenses so far. Also, it's one of the few that is updated regularly." Terms of Use: https://doubleuapp.com/privacy/terms.html

Written user reviews are not shown here. Check current App Store reviews >

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
react-native-async-storage
react-native-calendars
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.