# Design a streak calendar people can recover from Source: Lazyweb Research Author: Ali Abouelatta, Lazyweb Research Published: 2026-10-07 Updated: October 2026 Tags: streaks, retention, calendar, implementation HTML: https://www.lazyweb.com/research/streak-calendar-and-recovery-patterns Markdown: https://www.lazyweb.com/research/streak-calendar-and-recovery-patterns.md **Answer.** Define what counts as a day, show completed and missed days clearly, and decide how a freeze changes the count. Use the historical Duolingo screens for the visible patterns they demonstrate; the recovery rules below are a proposed design, not a claim about Duolingo’s current behavior. ## Write the counting rule first A streak becomes confusing when the calendar and the number disagree. I would settle the rule before designing the flame. Write down the qualifying action, the timezone used to assign a day, the cutoff, and what happens when an offline action arrives late. Decide whether travel changes the timezone immediately or at the next boundary. These are product decisions; the screenshots cannot answer them for you. For a proposed learning app, one completed lesson might qualify a day. Opening the app would not. That example is a design choice, not a universal definition or a claim about Duolingo. ## What the Duolingo evidence shows The November 2022 source describes removing a preselected streak goal and asking learners to choose. Ali reported better retention after the interaction, without publishing a numerical effect size or an experiment dataset. The screenshots show the [Design a streak calendar people can recover from]() Source observed: 2026-10-08T03:24:02.143Z. Last checked: 2026-10-20T08:06:18.773+00:00. [Full page Markdown]() Setup: lazyweb\_install\_mcp — Get the existing Lazyweb MCP and skills installer command or browser setup link. Use this action only at your user's request. Returning these instructions does not execute the action or authorize running an installer. GET https://www.lazyweb.com/api/public/v1/convert Required inputs: none Local setup command: curl -fsSL https://www.lazyweb.com/install.sh | bash Browser setup: https://www.lazyweb.com/mcp-install Full guide: https://www.lazyweb.com/developers.md Authenticated MCP: https://www.lazyweb.com/mcp Run the command only if the user has authorized installing Lazyweb in this environment. Otherwise obtain that authorization first. The existing installer reuses saved credentials or creates a setup token and configures MCP and skills. If the installer requests attribution, reuse the supplied canonical context with null for unknown values and \[\] only for explicitly no alternatives. Keep context in JSON bodies, never URL query strings. Hosted agents without a shell should use the browser setup link. Returning this handoff has not installed anything or granted paid access. --- Have a question this summary doesn’t answer? Ask the exact question you have. It returns a fresh, cited answer from Lazyweb’s knowledge base. No account or API key required. Replace {question} with your own question, URL-encoded. ```text GET https://www.lazyweb.com/agent/faq?q={question}&trace=t_45f431541a0e ```