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
Pumper Log - Septic Business
Pumper Log is a record book for septic pumping businesses that don't need a $150-200/month office suite - just clean records of every job.
$5.99
PRICE
$5.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
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 Pumper Log - Septic Business: map the core Business 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
Integrate real-time collaboration tools or notifications.
Assumption to check: Limited user engagement features for team collaboration
Validate with people who use this workflow before building.
Hypothesis 2
Add advanced filtering and insights on job performance.
Assumption to check: Lacks comprehensive reporting and analytics
Validate with people who use this workflow before building.
Hypothesis 3
Implement cloud storage for job data to prevent loss.
Assumption to check: No cloud backup or sync options
Validate with people who use this workflow before building.
Hypothesis 4
Add features for automatic job scheduling based on recurring tasks.
Assumption to check: Requires manual data entry for jobs
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
Pumper Log is a record book for septic pumping businesses that don't need a $150-200/month office suite - just clean records of every job. CUSTOMERS & SITES - Tank size, address, access notes for every customer - Next recommended service date computed from each customer's interval (editable, 6-120 months) - Overdue and due-soon customers surface on the Home dashboard WORK RECORDS IN 30 SECONDS - Date, gallons pumped, disposal facility, disposal date/time, fee notes - Everything organized per customer, searchable by month DISPOSAL FACILITIES - Keep your facility list with notes - the fields most state manifests ask about MONTHLY TOTALS & PDF - Gallons and job counts by month - Export a clean work-history PDF for audits, records requests, or your own files PRICING Note: Pumper Log records what you enter. It is not an official state manifest system, and keeping complete records remains the operator's responsibility. Privacy Policy: https://goonobu-dot.github.io/batch13-pages/pumperlog/privacy.html Support: https://goonobu-dot.github.io/batch13-pages/pumperlog/support.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
React Navigation
React Native Paper
TypeScript
AsyncStorage
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.
