# Progress Streaks, badges, belts — Duolingo's mechanics in Konjo's voice. > Part of the [Konjo design language](../konjo-design-language.md). The laws in the spine apply here unless this chapter contradicts them. Konjo has more progress to show than most apps: 19 ranks, a curriculum, attendance, test readiness. The founder chose **streaks and milestones** — the Duolingo shape — twice, over the belt ladder, over a progress bar, and over a big number. That is the mechanic. The tone is not Duolingo's. > **Duolingo's mechanics, Konjo's voice.** | Do | Don't | |---|---| | Badge grid + streak row as the primary display | Mascots, cartoon faces, confetti in progress UI | | Belts are the **highest tier of badge** — a rank is a badge a human conferred, which is why it outranks "30 classes" | A separate parallel achievement system competing with rank | | The full 19-rank ladder as a deeper screen for people who want the whole climb | Making the ladder the primary display (tested; not chosen) | | "4-week streak. Train once this week to keep it." | "You're on fire! 🔥 Keep it up!!" | | Badge glyphs in ink; earned belt badges carry their belt colour; locked ones dimmed | Red used to decorate badges (violates L4) | | Let a streak lapse silently | "Don't lose your streak!" notifications, streak-freeze economies | A dojo does not guilt people into attending. No loss-aversion mechanics, ever. **The one thing this mechanic does not cover is a promotion.** Streaks, counts and badges are the app's own bookkeeping, so game shapes fit them. A rank is not: it is conferred by a person, and it gets the [certificate](celebration.md), not a badge-unlock burst. The badge grid may *show* an earned rank — belts are its highest tier — but it must never be where the promotion is announced. ---