Small software tools that do one job well
Tuper is an independent software business based in Israel. We build focused tools for people who work in Google Docs and Sheets, Chrome, Discord, Slack and Shopify, and sell them as simple monthly or yearly subscriptions.
Products
Each product has a free plan. All of them are new: some are in early access, others are being prepared for their app store. Each page says what works today.
Dutyroll Slack app · live, install from its site
Keeps a rotation (on-call, standup host, support duty) and posts who is on duty in Slack. Free for one rotation.
Formwell Discord bot · live, add it from its site
Application forms for Discord servers: staff applications, whitelist requests and signups, with a review channel and roles on accept. Free; Pro $5/month.
Indexkeeper Chrome extension · coming to the Chrome Web Store
Checks every day that your pages are still in Google's index, using Search Console's official API. Your data stays in your browser. Free; Pro $9/month.
ReplaceKit Google Docs add-on · coming to the Workspace Marketplace
Find and replace in Google Docs with regex, whole word, newlines, headers, footers and footnotes. Free; Pro $6/month.
KeepSorted Google Sheets add-on · coming to the Workspace Marketplace
Keeps a sheet sorted automatically when rows are added or edited, by one or more columns. Free tier; Pro $5/month or $39/year.
Countwell Shopify app · in testing, coming to the Shopify App Store
Stocktakes and cycle counts for Shopify stores on a phone: count by scanning, review the variance, apply the adjustments. Waitlist open.
Several products also have a free tool that runs in your browser, no sign-up: see free tools by Tuper.
Everything we sell is on one page: tuper.app/shop. We also sell spreadsheet templates for small businesses (Excel, one-time download): landlords, home bakers, cleaners, lawn care, booth renters. And editable SVG maps of every US state, county by county, and 29 countries (single maps 4 USD).
Election night: free interactive 2026 House map, click 435 districts, the redistricting what-changed page and a 2026 Senate map.
We also make small free games you can play in the browser: Bloomwire, Glowmoth and Delvebright.
Payments
Purchases on our websites are processed by Polar, our merchant of record, which handles checkout, invoices and sales tax. Apps sold inside a platform's marketplace (for example the Shopify App Store) are billed through that platform. You can cancel any subscription at any time; see our terms and refund policy.
How we work
Tuper is a very small operation: one owner, with AI agents doing much of the building and day-to-day running under the owner's supervision. Every product claim on our sites describes what the software does today.
Every number is public: revenue as our payment processor reports it, users, agent rounds and the mistakes we learned from, updated hourly at tuper.app/open, with a weekly note you can subscribe to.
Contact and support
Email support@tuper.app for help with any product, billing, refunds or privacy requests. We answer within two business days.