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.
Important: please read the app's description before acquiring the app
$0.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Before and After Pro Slider: 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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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
Assumption to check: Limited editing features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent image quality on certain devices
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of cloud storage for saved comparisons
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be confusing for new users
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Important: please read the app's description before acquiring the app. The manual sliding functionality is only available inside the app (you will not be able to drag the slider after sharing the slideshow video on a social platform). The app is compatible with iPhone 5s, iPad 5th gen, iPad Mini 2nd gen or newer devices. Try before you buy: look for Before and After Photo Compare Main features of Before and After Pro Slider: - no ads - easy to use with detailed How To Use screen - English and Russian language support - the settings and slides are automatically saved and will be used when you start the app again - 2 Image Compare mode where you can manually drag the slider (vertically, horizontally, oblique or reverted oblique). In this screen you can access the Side by Side mode by pressing the button in the bottom right corner - Slideshow mode where you can present your before/after slides (30 max) in an animated way. The reveal animation will run by itself for each slide. - you can preview the existing before/after image when taking a new picture - you can control the direction of each slide in the slideshow and also you can duplicate the last slide - you can record the slideshow and then trim it before saving or sharing it. - you can convert your recorded slideshow (or any other video) to an animated GIF - ability to save/share a snapshot of the current slide. Only a screenshot will be saved/shared, so you won't have the slider functionality when you perform this operation.The recording feature is built into iOS and it can behave strangely sometimes, so please be aware of this. If you experience issues, a device restart is required. How to use: - tap on the before/after image slots to load the images from the Library (or take a new one with the camera). You can load both before/after images at the same time (if both slots are open). Optionally, you can load a logo (for best results, use a png image with transparency) that will be shown in one of the corners when you are in Slideshow mode - modify the slide handle/slideshow settings to match your needs - once both images are loaded, tap on the Compare button and drag the slider with your finger - to create Slideshow, the before and after images for the current slide must be present (valid only for the first slide). Once the images are loaded and you altered to settings to match your preferenes, tap on the Slideshow button and watch it run automatically. To add a new slide, tap on the Add Slide button at the bottom of the screen and then add images to it. You can edit the slides order by going into the Edit mode (top left button) - to add background music to the Slideshow, from the side menu, tap the Pick Song button and load a song from your device's library. Next time you press the Slideshow button, the song will play. - to hide the top and bottom control bars in 2 Image Compare/Slideshow mode, tap on the eye icon in the top right corner. To show them again, double tap or long press on the device's screen - To record, activate the Rec button and then press the Slideshow button. The recording will stop once the slideshow is finished, and you will be presented with the resulting video. From there you will be able to trim it before saving/sharing it. - To export a slideshow recording to GIF, then press the GIF button in the top right corner, load the slideshow video, trim it (20 seconds maximum), then press EXPORT GIF button and then save/share it. The app is suitable for those who want to compare the before and after images (to see weight loss or diet/fitness program results, makeup or aesthetic transformation etc) or to impress their friends/bosses/clients with the work they've done, by presenting them the stages of their work in a cool way. If you're having trouble loading images, try turning on the User Regular Image Picker switch in the side menu settings. Enjoy this app and don't forget to contact us through the app's contact form if you have something to say!
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.