undull
Collections

Make your week mean something.

A collection turns scattered quests into a story. Seven days, thirty days, ninety days — pick a theme, join a challenge, or build your own.

Browse collections in the appSee every category
Three shapes

Pick the shape that matches the week you want.

Open

Pick and choose

Every quest in the collection is available from day one. Do them in any order. Great for "10 things to try in Lagos" or "coffee shop crawl" packs.

Sequential

Day by day

Quests unlock in order — day 1, day 2, day 3. Built for runs like "couch-to-5K" or "7-day mindfulness" where each step builds on the last.

Challenge

Start together, finish together

A fixed start and end date. Everyone who joins is on the same day at the same time. "March Sketchbook", "Sober October", first-week-of-the-year resets.

Popular starts

A few collections people are running right now.

  • SequentialCreative

    30-Day Sketchbook

    One low-pressure drawing prompt per day for a month. Nothing polished, nothing public unless you want it.

  • SequentialOutdoor

    Couch to 5K

    The classic. Nine weeks, three runs a week, gets you from standing to jogging 5 kilometres without injury.

  • OpenExplore

    Local Explorer

    A stack of neighbourhood micro-missions — that weird market, the bridge you walk past, the coffee shop two streets over.

  • ChallengeMindfulness

    Digital Sabbath

    Seven people, seven days, one hour a day offline at the same time. Simple ritual, measurable reset.

New collections land every week. Sign in to browse the live library.

For creators

Bundle your best quests into a proper run.

  • Sequence prompts day-by-day or leave them open
  • Run time-boxed challenges with live participant counts
  • Get paid the same way — completions award XP and royalties
Apply to create
Good to know

Collections, explained.

  • Do I have to finish a collection to get XP?

    No. Every quest you complete awards XP on its own. Collections are a scaffolding layer — finishing one unlocks a collection badge and streak credit, but the quests still count individually.

  • Can I create my own collection?

    Yes. Any creator or group admin can bundle their quests into a collection — open, sequential, or challenge. Group collections stay inside the group and are never promoted to the public feed; public collections reach the main feed once their quests meet the usual trust bar (3 completions at 4★ or higher).

  • What happens if I miss a day in a sequential collection?

    Nothing. Undull doesn't break streaks for a missed day. You just pick up where you left off the next time you open the app. No shame economy.

  • Can I join a challenge mid-way through?

    Most challenges let you "join from today" — you get the remaining days on the countdown. A small number of challenges lock after the start date, and we'll show you a clear "next starts in X days" badge so you don't hit a dead-end.