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
iStopMotion
Join many thousands of iStopMotion fans and enjoy the excitement of creating stop motion animations (AKA claymation or stop action movies) and time lapse recordings with the highly-rated iStopMotion
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.8
23 ratings · Top 50%
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/
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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 iStopMotion: map the core Photo & Video 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
Offer more advanced editing tools and filters in the clone.
Assumption to check: Limited editing features compared to desktop alternatives
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more intuitive frame management system.
Assumption to check: Difficulty in frame management
Validate with people who use this workflow before building.
Hypothesis 3
Ensure robust error handling during export.
Assumption to check: Occasional bugs during video export
Validate with people who use this workflow before building.
Hypothesis 4
Design a more user-friendly onboarding process.
Assumption to check: User interface can be confusing for new users
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
Join many thousands of iStopMotion fans and enjoy the excitement of creating stop motion animations (AKA claymation or stop action movies) and time lapse recordings with the highly-rated iStopMotion. You can be a master filmmaker, directing your own blockbuster animation movie. It's fun and easy for everybody from kids to grandparents to tell your story frame by frame, featuring your favorite toys. Turn the time spent with your children into a great creative experience and wow friends and family at your opening night. iStopMotion is also used in hundreds of classrooms all over the world in all disciplines, honing creativity, problem-solving and communication skills in students of all ages. KEY FEATURES AND BENEFITS Camera Overlay – Overlay the current live camera image with the previous one and see the changes unfold before your eyes. Animate more quickly and with a higher degree of accuracy. Instant Playback – Being able to play back your work at any time without a long wait leads to instant gratification. Beautiful Timeline and Navigator – Never get lost and quickly navigate through your movie, even if there are hundreds of frames. Import or Record Audio – Easily animate to a prerecorded sound track like the pros or dub your movie after shooting. A waveform view helps you recognize significant events in the sound track making it easy to match sound with the animation. Remote Camera – Position your camera more conveniently and avoid touching the camera device for capturing a frame with iStopMotion Remote Camera (download separately from the app store) - a free complementary app to iStopMotion! Theater – Be inspired by what other people create with iStopMotion or share your own masterpiece with the world. Flip Book Printing – Create a PDF that contains the key frames of your animation to print out and assemble into a nice flip book to show off to your friends and family. For more information, great examples, a forum and tech support go to boinx.com/istopmotion/ HIGH RATINGS FOR ISTOPMOTION "Once again, Boinx has done an excellent job…" – Steve Sande, TUAW.com "I was truly impressed with the quality of movies I could make with this software." – Derrick Story, TheDigitalStory.com *** Winner Macworld Best of Show 2013 *** *** Winner Macworld Best of Show 2012 and Mac Observer Editors Choice Awards ***
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
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react-navigation
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zustand
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.
