Pronto

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Pronto is a finished, shipping Android app: a work buddy that does the paperwork. The user types what they need in a chat ("make me a 10-slide deck on photosynthesis", "turn this photo of my notes into study cards", "turn this lecture recording into notes"), taps a skill card, fills a short form, and gets a real file back: .pptx, .docx, .pdf, .xlsx, a mind map, a transcript. It is completely free to use. No subscription, no card: users earn credits by watching rewarded video ads, and each skill is priced from its real AI cost.Live on Google Play (145 countries) and Uptodown, both on the current version 1.5.5.WHO IT'S FORStudents and junior office workers in emerging markets (Indonesia, Brazil and India first) who do all their work on a mid-range phone: no laptop, no international card, but a deadline and a file to hand in. Chat-only AI apps give them text and a paywall. Pronto gives them the finished deliverable, in their language, formatted to their local standard, for a few ads.HOW IT MAKES MONEY• One rewarded ad = 10 credits. New users get welcome credits, so the first tasks are free before anyone sees an ad.• Every skill is priced from measured token usage. The app holds a P90 amount, settles to the real cost when the task finishes and refunds the difference; users see "typically 6 credits, holds 27" up front and what they actually paid after.• The credit price is derived from rewarded-ad eCPM and skill prices are recomputed from the LLM provider's rate card, so ad revenue is designed to cover token cost with margin from the first user. A daily margin guard checks real settlements against provider rates.• Unit economics, roughly: skills are priced at about 2.5× measured token cost, so a typical slide outline (6 credits) costs around $0.0006 in tokens, and one completed rewarded view funds 10 credits. Break-even is about $1 eCPM, well below typical rewarded-video rates in Indonesia, Brazil and India. Per-task margin is positive from there up; what the product needs is volume, not a better rate.• Rewards are granted only after server-side verification (AdMob SSV, replay-safe); Play Integrity is wired in. Credits cannot be forged from the client.• Free where it earns trust: outlines are free until the user confirms them, regeneration is free, format conversion needs no AI at all.THE 34 SKILLS, AND WHY THEY ARE SHAPED THIS WAYA skill is a declarative card: an input schema (the form renders itself), a pricing mode, a prompt pipeline and an output renderer that produces a real file. Add a card and the chat router, quote card, form, pricing, store page and daily report all pick it up. Seven groups:• Presentation: PPT outline → full deck with speaker notes, speaker script, presentation bundle (deck + cover page in one job)• Documents: resume PDF, cover letter, ATS resume match, report DOCX, document summary, paragraph-by-paragraph translation, academic cover page• Academic, localized to real exam systems: ABNT formatting and references (Brazil), ENEM essay grading on the five official competencies, FUVEST/UNICAMP essay rubrics, LPDP scholarship essay planner and laporan praktikum lab reports (Indonesia), UPSC exam essays with hard word-count validation (India), references in ABNT/APA/MLA/SNI, thesis topic → outline → chapters following the country's academic standard• Spreadsheets: messy pasted text (WhatsApp lists, web tables) → clean table, spreadsheet analysis with summary stats, pivot and chart, ready-made template sheets (budget, ledger, timetable)• Photo & audio (vision + speech models): photo of a table → spreadsheet, receipt → expense report, photo of handwritten notes or a blackboard → structured notes, photo of a math or science problem → step-by-step study guide, handwritten essay → transcription + evaluation, audio recording → verbatim transcript + notes• Research: deep research that searches the web and cites sources• Tools: PDF merge/split/compress, format converter, e-commerce listing compliance check, mind mapWHAT MAKES THE ARCHITECTURE INTERESTING• The user brings nothing. Most "AI agent" apps make the user supply a model key, an environment or a subscription. Pronto is a centralized service: the phone runs a thin Flutter client and one server does the LLM calls, vision for photo skills, speech-to-text for audio, and LibreOffice rendering. That is what makes it free and usable for this audience on a 2 GB phone.• Runs on one small server. No sandbox, no firewall rules for user code, no autoscaling story. The chat model can do exactly three things: recommend a registered skill, refine a previous result, or regenerate one. It cannot execute code, browse freely, or produce a deliverable outside a registered card, so the CPU, memory and tokens each job may use are known in advance. The whole product runs on a single mid-size VPS today, and it is easy to operate alone.• Billing that never needs a support inbox. Every task holds an estimate, settles to real usage and refunds the rest. Ledger invariants (a refund can never exceed what was charged; negative balances are capped as debt repaid by ads) and replay-safe ad callbacks are covered by 3,400+ automated tests written red-first on the money paths.• Nothing expensive runs before the user says yes. Decks, theses and essays generate an outline the user edits and confirms; only then is the render charged. Far fewer "that's not what I meant" refunds.• Localization as product, not translation. English, Indonesian and Brazilian Portuguese UI in the right register (informal "kamu" for Indonesian students), skills built for each market's exam system, three-language store listings, and a generated three-language site (prontotasks.app) that stays in sync with the app's own strings.WHAT YOU GET• Full source: Flutter client, FastAPI backend and worker, all 34 skill definitions and prompts, pricing logic, marketing-site generator• Deployment kit: single-host Docker Compose behind Caddy with Postgres, backup/restore scripts (a restore rehearsal was actually performed), alerting, a daily production report (funnel, per-skill real-vs-test split, margin guard, dependency health), and a deploy manual• Store assets in three languages: listing copy, screenshots, feature graphic• A library of finished short-video ads in English, Indonesian and Portuguese, with scripts (for example: a student records the lecture on her phone and has study cards before the bus ride home)• Handover docs: architecture, skill catalogue, pricing model, an honest known-issues list, and a step-by-step republish guide (new package name, your own ad units, your own keys)• 14 days of handover support by email• Optional: the Uptodown listing can be handed over with its accountSTATUS, PLAINLYEarly-stage and pre-revenue: a few dozen real users so far, with the full loop (ask, quote, pay with credits, download the file) completed by real users in India and the Philippines. The Google Play listing is under the seller's developer account and is a demo only; you publish under your own account with the included guide. Production user data is not included. All code, prompts and assets are original; open-source dependencies are listed with their licenses.WHERE A BUYER CAN TAKE IT• Publish under your own developer and ad accounts (guide included); the ad-credit economy is already tuned• Add credit packs as in-app purchases next to ads, for the users who would rather pay• Ride the exam calendar: the localized academic skills (ENEM, LPDP, UPSC, ABNT) are built for seasonal demand and campus word of mouth• White-label the backend: it is a generic AI task engine with pricing and ad settlement built in, usable behind other apps or a web front endWHY WE'RE SELLINGThe build is done and running; growing it needs marketing time we are putting elsewhere.TERMSAsking price: ~ $2,500 USD (negotiable)Payment: PayPal or bank transfer; escrow available on requestWebsite: https://prontotasks.app (three languages)Demo videos: https://prontotasks.app/assets/sp/STUDY_CARDS_en_v3.mp4 · https://prontotasks.app/assets/sp/STUDY_CARDS_id_v3.mp4 · https://prontotasks.app/assets/sp/STUDY_CARDS_pt_v3.mp4Contact: [email protected]