Who buys this
Ops managers who get a fresh spreadsheet every Monday and have to turn it into a chart deck before the 10am call.
Where to start in Lovable
Paste this into Lovable as the opening prompt. It sets up one screen and one job, which is easier to grow from.
Build a reporting tool where a user uploads a CSV or XLSX and the app suggests three chart types for each numeric column based on its shape: a trend line for a date column, a bar chart for categories, a scatter for two correlated numbers. Let the user pick a suggestion, tweak the title and colour, and arrange charts on a single dashboard page. Add a button that exports the whole dashboard as a PDF report with a short written summary above the charts.
What you will need to wire up
- Lovable AI Gateway
- Lovable Cloud (Postgres)
- Storage для файлов
- PDF-рендер сервис
Build order
- Sniff column types before suggesting charts. Write a small classifier that scans the first hundred rows of each column and tags it as date, category, or number before any chart logic runs. Skipping this step means the app guesses wrong on half the uploads and the suggestions look random.
- Cap the chart count per dashboard. Real spreadsheets have thirty columns and users will click add on every suggestion if you let them. Set a soft limit around eight charts and prompt them to pick the ones that matter, otherwise the dashboard becomes unreadable clutter nobody screenshots for a meeting.
- Write the summary from the numbers, not from the chart image. Feed the model the aggregated stats behind each chart, min, max, average, delta versus the prior period, rather than asking it to describe an image. Text summaries built from raw numbers are accurate and cheap; summaries built from screenshots hallucinate trends that are not there.
- Sell by connected data source, not by seat. Teams that use this tool are usually one or two people, so a per-seat price caps your revenue low. Price by the number of recurring data sources connected, since that maps to how many reports the customer actually runs each month.
Where this usually breaks
- Dates in different formats across regions, like day-first versus month-first, get parsed wrong and shift a whole trend line. Ask the user to confirm the date format on upload instead of guessing silently.
- Large spreadsheets with fifty thousand rows freeze the browser when rendering every point on a scatter chart. Downsample to a few thousand representative points before drawing and mention the sampling in a footnote.
How it makes money
- Per connected data source. Scales with how much the customer actually depends on the tool for recurring reporting.
- One-off report generation credits. Works for occasional users who need a polished deck once a quarter and will not pay a subscription.
Build this on Lovable
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