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.
CALENDARS & MEETING REMINDERS
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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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Generating… usually about a minute.
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 Synopsule: map the core Productivity 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: User interface can be cluttered with many tasks and projects
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in managing recurring tasks
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited collaboration features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No calendar view for better task visibility
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.
CALENDARS & MEETING REMINDERS Choose Apple Calendar calendars, including synced Google accounts. Set optional reminders, timing, sound and title privacy. Mute recurring series or notify only for invites with meeting links or dial-in details. Choose a meeting to use its title and invited-name suggestions. Recording starts only when you choose Record. Synopsule turns your iPhone and Apple Watch into a private transcription studio. Record any conversation, see a live transcript as you talk, and when you stop, see who said what - all on your device. Everything runs locally by default. Your audio never gets uploaded. RECORD ON iPHONE OR APPLE WATCH Tap record on iPhone for live transcription while you talk. Start from Apple Watch when your phone is not in hand, pause or resume, add markers, and send the saved recording to your paired iPhone for local processing. TRANSCRIBES LOCALLY WITH WHISPER OpenAI's open-source Whisper model runs entirely on your iPhone, optimized for Apple silicon. Choose a model size that fits your phone, from a fast compact model to a larger high-accuracy model. The download size is shown up front, and the model runs on-device once installed. LABELS AND RECOGNIZES SPEAKERS When a recording finishes, Synopsule figures out who said which line and assigns colored speaker labels on device. Name speakers and reuse saved voices across recordings. Voiceprints stay on your iPhone. NOTES AND FLAGS, ANCHORED IN TIME Jot notes while you record or read. Each note is pinned to the moment, so tap to seek straight back, and your notes can feed into the AI summary as context. Drop a flag on anything worth finding again and give it a label. OPTIONAL AI SUMMARIES, ON YOUR TERMS Press Summarize, pick a template, and get a structured, speaker-aware recap with action items and open follow-ups. Then choose where it runs: - Bring your own OpenAI, Anthropic, or Google Gemini key. Transcript text goes directly to that provider. - On an Apple Intelligence-capable iPhone, summarize on-device when available. - Or subscribe to Synopsule Pro and run summaries without managing your own key. Synopsule names the destination and asks consent before any text leaves your phone. Your audio is never sent anywhere - only transcript text, only when you ask. You can revoke consent any time in Settings. POWERFUL PLAYBACK AND EDITING Tap any line to jump to that moment in the audio. The transcript follows along as it plays. Fix a word or reassign a speaker inline whenever you like. SEARCH EVERYTHING Full-text search runs across every transcript. Filter by who spoke using speaker: queries to jump straight to the right moment. EXPORT ANYWHERE Export to Markdown, Word (.docx), plain text, SRT and VTT subtitles, or interactive HTML. You can also send a transcript straight into Obsidian or Apple Notes in one tap. Choose what to include: timestamps, speaker labels, grouping by speaker, and the AI summary. PRIVACY YOU CAN VERIFY - iPhone microphone audio is captured and transcribed on your iPhone. - Apple Watch recordings are stored locally on the Watch until transferred to your paired iPhone for on-device processing. - Transcripts live in protected app storage. Delete any recording whenever you want. - No ads and no cross-app tracking. Optional anonymous product analytics can be turned off in Settings. SYNOPSULE PRO (OPTIONAL) Subscribe monthly ($4.99) or yearly ($39.99) to run AI summaries without managing your own API key. Subscriptions auto-renew until cancelled; manage or cancel any time in Settings > Apple Account > Subscriptions. The same subscription works on Synopsule for Mac. Requires iOS 17 or later. Apple Watch recording requires watchOS 26 or later and a paired iPhone. Read the full privacy policy at synopsule.com/privacy.
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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.