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.
Esti is an app that makes creating beautiful, visually consistent content simple and efficient
Free · 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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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 Esti: Aesthetic Photo Editor: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Esti is an app that makes creating beautiful, visually consistent content simple and efficient. It provides essential tools for creating appealing photos and videos with minimal effort. If you want your social profiles or blog to have consistent and attractive visuals without spending a lot of time on editing, Esti offers practical tools designed to streamline the process and help you create refined content. With features such as batch editing, preset creation, and a selection of filters and film effects, Esti supports efficient content creation with a focus on visual consistency. FEATURES ► BATCH EDITING: Apply the same edits to multiple photos at once. ► FILTERS: Adjust colors easily with filters designed for different visual styles. ► FILM EFFECTS: Give photos extra character with effects inspired by Polaroid, VCR, Kodak, Super8, and Fuji. ► ADJUSTMENTS: Fine-tune light, color, and details using tools such as HSL, Grain, and Blur. ► TOUCH UPS: Make small appearance adjustments such as skin tone or hair volume. ► OVERLAYS: Add depth using manually designed textures like dust, paper, plastic, and light leaks. ► PRESETS: Save your preferred edits as presets for future use. ► VIDEOS: Apply filters, effects, and adjustments to videos as well. Subscription ► Esti Pro may offer different subscription plans. Depending on the subscription plan chosen, subscriptions may be billed weekly, monthly or annually. ► Subscription for Esti Pro auto-renews at the cost of the chosen subscription plan unless cancelled 24 hours in advance prior to the end of the then-current subscription term. Unless you cancel the subscription before the billing date, you will be automatically charged the subscription fee for the next billing cycle in accordance with the conditions of the subscription plan chosen. Subscription Policy - https://esti.app/subscription-policy Privacy Policy - https://esti.app/privacy-policy Terms of Use - https://esti.app/term-of-use Help Center - https://estiapp.zendesk.com/hc/en-us
Written user reviews are not shown here. Check current App Store reviews >
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 customization options for filters
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional performance issues with large images
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of batch editing for multiple photos
Validate with people who use this workflow before building.
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.