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.
Over 185,000 definitions and 17,000 synonyms • Conjugates thousands of French verbs • Hundreds of usage notes and examples • No internet connection required
$8.99 · 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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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 Ultralingua French: map the core Reference 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 vocabulary and phrases compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline access to word lists.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase for premium features is unclear.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of visual aids for learning.
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.
Over 185,000 definitions and 17,000 synonyms • Conjugates thousands of French verbs • Hundreds of usage notes and examples • No internet connection required "For serious language students and translators who are looking for more precision." - The New York Times Featured by Apple as "What's Hot" Ultralingua makes apps for people who love languages. You can count on our French dictionary and thesaurus to provide all the content you need, along with extra features that help you get the most out of the dictionary. Use our verb conjugation tool to find complete conjugations of thousands of verbs in all standard forms, and the thesaurus to find synonyms and antonyms when you need them with no internet connection required. DICTIONARY: • Over 85,000 entries with 185,000 definitions • Over 85,000 synonyms • Tap-and-hold any word or phrase and choose "Speak" from the popup menu to hear that word spoken using Apple's built-in text-to-speech feature. • Thousands of biographic and geographic entries, as well as etymologies (root word histories) • Slang, technical language, and regional differences in spelling and usage • Hundreds of usage notes about troublesome constructions • Smart search results in case you misspell or mistype • Search-as-you-go displays words and narrows your selection as you type VERBS: • Conjugations for thousands of French verbs • Includes all standard tenses and forms • Smart search finds infinitives and catches misspellings • Must-have reference tool for any student or language professional • On iPhone/iPod touch, conjugate a verb from the dictionary results by tapping it MORE: • Translate numerals into French text with the number tool • Tap the history button to view the 50 most recent dictionary definitions, verb conjugations, and more in one place. Sort the list alphabetically or by date, and choose to clear the list completely or delete one entry at a time. • No internet connection required • Change your device settings to view the app display in English, Spanish, French, Italian, Portuguese, or German REVIEWS: "Excellent Reference - A French language dictionary is a great complement to a Fr-Eng/Eng-Fr dictionary for students of French, and I highly recommend this one. The conjugator is handy for when you forget how to form a particular tense." -User review "Not only is it easy to use but it contains so much information and it is well organized, explained and easy to read." -User review View our reviews below to see why users love this app, and remember to let us know what you think! Are you learning French? A monolingual French dictionary is a must-have tool for any French language learner. This app includes conjugations of thousands of French verbs in all standard forms. The all-French data also helps immerse students in the language, which is shown to increase proficiency and retention. This universal app will run on iPad, iPhone, and iPod touch, so you can purchase it once and load it onto all your devices. The iPad and iPhone/iPod touch versions look and behave differently to give you a great experience on every device you own. The interface will change, but you’ll always have the same outstanding language data and tools inside. This is a monolingual French dictionary. Many bilingual dictionaries are also available from Ultralingua, including combinations of French, Spanish, French, Italian, Portuguese, German, and more. See what else we have to offer by searching for Ultralingua in the App Store. Follow us on Twitter and become a fan on Facebook for app news, language learning tips, and more: http://www.twitter.com/ultralingua http://on.fb.me/ifI8Hy
Written user reviews are not shown here. Check current App Store reviews >
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.