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
SignMyPad: Fill & Sign PDF
Sign a PDF, fill out a form, and send it back—in under a minute, right from your iPhone or iPad
$3.99
PRICE
$3.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.3
18 ratings · Below Average
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.
First kit free with a verified email
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Combine features and design from your favorite apps.
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Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included
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.
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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
Sign a PDF, fill out a form, and send it back—in under a minute, right from your iPhone or iPad. No account. No monthly fees. Your documents never leave your device. SignMyPad does one thing exceptionally well: it turns your iPhone or iPad into the fastest way to fill out, sign, and return a PDF. Open a document from Files, email, or any cloud service, drop in your signature, and send it—done. Unlike the built-in markup tools, SignMyPad fills real PDF form fields—not just scribbles on top. Tap a field and type, check a box, pick a date. And unlike the big e-signature services, there's no subscription and no login. You own it. FREE FEATURES Open PDFs straight from your Files app—iCloud, Dropbox, Google Drive, OneDrive, Box—plus email and any app's Share Sheet Fill real PDF form fields: text, checkboxes, radio buttons, and dates Sign with your finger or Apple Pencil, or type your signature Save signatures and initials once and reuse them on any document Add text, dates, and checkmarks anywhere, then move and resize with a tap Flatten your signed PDF so nothing shifts Send it your way: email, save back to Files, AirPrint, or share Organize documents in folders, with recents and search Works on iPhone and iPad 100% on your device—no account, no servers, private by design SIGNMYPAD PRO (one-time upgrade) Red ink signatures—preferred by legal and notary professionals Signing provenance: the date, time, and location of signing embedded in the PDF's metadata iCloud sync—see the same documents on your iPhone and iPad Advanced form filling SIGNMYPAD BUSINESS (one-time upgrade) Everything in Pro, plus: Add your company logo or letterhead to any document Save reusable business details (name, title, company, license #) and drop them into forms instantly Bulk export multiple signed documents at once NO SUBSCRIPTION. EVER. Download free. If you want more, unlock Pro or Business with a single one-time purchase. What you buy, you keep. PERFECT FOR Lawyers, real estate agents, financial professionals, contractors, and anyone who needs to fill out and sign a document without printing, scanning, or signing up for anything. Open. Sign. Send.
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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.
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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
