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
Collect - Photo Journal, Diary
- Collect rich memories, not just photos -
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
1,517 ratings · Top 15%
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 included17 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 Collect - Photo Journal, Diary: 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
Implement advanced editing tools like text formatting and image filters.
Assumption to check: Limited editing features for journal entries
Validate with people who use this workflow before building.
Hypothesis 2
Add offline capabilities for viewing and editing entries.
Assumption to check: No offline access to journal entries
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer explanations and benefits of each subscription tier.
Assumption to check: Subscription model can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to import from or export to other journaling apps.
Assumption to check: Lack of import/export options
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
- Collect rich memories, not just photos - - Easy, modern memory keeping - - Complete your photo-a-day project - 'Collect' is the perfect daily photo journal! -------------------------------------------------------- WHY? THESE AMAZING REVIEWS "Love it! Downloaded a bunch of these photo journals. This one definitely beats them all." "Favorite app on iPhone. The interface is simple and stylish, convenient, user-friendly.” “Best… App… Ever. If you are a scrapbooker or memory keeper this is the perfect app." -------------------------------------------------------- WHAT MAKES COLLECT DIFFERENT? DATE & CAPTION YOUR PHOTOS Beautiful, elegant design to show off your photos that also includes the date (month, day and year) and a caption. CAPTIONS PLUS DETAILED NOTES Sometimes a short caption isn't enough so with Collect you can add as much detail as you want with unlimited text notes entry with each photo. ADD PHOTOS IN BULK Get your important photos into the app quickly using the bulk import feature (up to 15 at one time). PASSCODE LOCK (WITH TOUCH ID) Keep your journal private by adding a passcode lock (with support for Touch ID to unlock). USE TAGS TO SORT YOUR PHOTOS Adding tags to each photo memory helps you filter and find them later. MULTIPLE ALBUMS & CALENDARS Create multiple different albums for whatever you're interested in. AUTOMATIC BACKUP & SYNC Get the Keep Safe Pack upgrade to enable fast syncing & private backup via your iCloud account. CREATE & SHARE MONTHLY COLLAGES Easily generate hi-resolution (2448px) collages of your photos every single month. SEND TO DROPBOX & FLICKR Get the Creative Pack upgrade and export all your photos, captions, notes & tags to Dropbox & Flickr. PERFECT FOR PRINTING The card format is perfect for printing when you export them from the app. Export you whole month of photos in bulk ready to print in either 3x4 or 4x6 print sizes. CREATE VIDEO SLIDESHOWS Want a super-easy way to share your photos & memories with friends & family? Then grab the Video Pack upgrade to create square or rectangular videos including dates & captions (ideal for Instagram, YouTube & Facebook). NO SIGN-UP REQUIRED Starting collecting your photo memories straight away and with no annoying ads to get in the way. AND SO MUCH MORE... - Add multiple photos every day - Beautiful, intuitive design - Fast, easy to use interface - Daily reminders to add photos -------------------------------------------------------- DOWNLOAD NOW. GET STARTED. Save your best photos each day and 'Collect' a stunning photographic journal of your life. - Follow us on Instagram! @collectphotoapp #collectphotoapp - Follow us on Twitter! @collectphotoapp - All the details at collectphotoapp.com
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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
Zustand
React Navigation
Axios
Firebase
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.
