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.
App Overview
BACtrack View
Since 2001, BACtrack has provided millions of people with the trusted tools needed to gain a higher level of transparency and accountability with their BAC testing
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
728 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 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.
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
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for BACtrack View: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Since 2001, BACtrack has provided millions of people with the trusted tools needed to gain a higher level of transparency and accountability with their BAC testing. Now we’ve reinvented remote alcohol monitoring, making it accessible and affordable for any purpose. Powered by BACtrack's award-winning smartphone breathalyzer, BACtrack View is a service that allows you to monitor and document your sobriety, or track anyone else's sobriety, directly from your phone. Download the App and start building a record of trust today! [KEY FEATURES] • Police-Grade Breathalyzer - Every account includes the use of our award-winning smartphone breathalyzer, BACtrack Mobile. • Video Verification - Each test is verified in the app by taking a photo while the person is testing. • Time, Date & Location-stamped Results - Each BAC result includes the time, date & location where the test was completed. • Scheduled, Random or On-Demand Testing - Easy to use controls let you determine the testing schedule that fits your needs. [WHO IT'S FOR] • Family Law & Child Custody Cases - Keep an eye on a parent’s drinking behavior and protect your children during visitations and parenting time. • Support for Family & Friends - Increase accountability and encourage lasting behavioral change. Test loved ones or create your own support group. • Compliance Monitoring - Convenient and quick self-testing anywhere you go; verified and easy to share results. • Teen Drivers - Peace of mind that your driving-age child is making smart decisions while behind the wheel. • Health Professionals - An easy-to-use and affordable monitoring solution for rehab and addiction management programs. • Workplace Management - A simple and affordable way to make sure employees and drivers are sober on the job. [HOW IT WORKS] • Each member downloads the app and creates an account, based on their role: Tester or Monitor • A schedule is then created for the Tester. You have full flexibility over the schedule: select testing periods by day and time or choose randomized testing during certain key time periods. • Automated Text Message notifications tell a user when it's time to test. • Once a test has been completed, video and location-verified BAC results are captured via the App, and instantaneously sent back to the Monitor. • All test results and calendar data is saved within the App and can be exported as a PDF report to your email. 14 Day Free Trial • No Activation Fees • No Contracts • Cancel Anytime Download the App and start building a record of trust today! Privacy Policy: https://monitoring.bactrack.com/privacy-policy/ Terms of Service: https://monitoring.bactrack.com/terms-of-service/
Written user reviews are not shown here. Check current App Store reviews >
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
Add insights and recommendations based on user data.
Assumption to check: Limited features for tracking consumption patterns
Validate with people who use this workflow before building.
Hypothesis 2
Implement challenges or rewards for responsible drinking.
Assumption to check: Low user engagement due to lack of gamification
Validate with people who use this workflow before building.
Hypothesis 3
Enhance UI with modern design elements and animations.
Assumption to check: Unattractive UI leading to poor user retention
Validate with people who use this workflow before building.
Hypothesis 4
Implement more precise BAC calculation algorithms.
Assumption to check: Inconsistent data accuracy
Validate with people who use this workflow before building.
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
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Expo Constants
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BUILD KIT DIFFICULTY
Advanced
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.
