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We make apps and occasionally finish them.

An independent app studio. Plenty of ideas — only the good ones ship.

See the apps Meet ChapterUp
now: ChapterUp for iOS
ChapterUp on a phone, showing the home screen, with the books in progress and today's reading goal

ChapterUp

Every page counts.

  1. ChapterUp on a phone, showing the home screen, with the books in progress and today's reading goal

    Everything you're reading, and how today's goal is going.

  2. ChapterUp on a phone, showing the library, with how far through each book you are

    Your whole library works offline and syncs when you're back.

  3. ChapterUp on a phone, showing achievements, grouped by rarity

    Achievements across four rarity tiers, from Common to Legendary.

  4. ChapterUp on a phone, showing reading insights by time of day and day of the week

    See when you read best, by time of day and day of the week.

  5. ChapterUp on a phone, showing Reading DNA, a profile of genres and reading habits

    Reading DNA sums up your genres and habits in one profile.

  6. ChapterUp on a phone, showing the opening card of Year in Review

    Your year in books, ready to share.

  7. ChapterUp on a phone, showing the list of ChapterUp+ benefits

    ChapterUp+ drops the ads and adds streak repairs, XP boosts and more.

See everything ChapterUp does

Apps

Everything here is live or about to be. Nothing half-built makes the list.

ChapterUp icon

ChapterUp

Reading, levelled up.

Mobile app

ChapterUp turns reading into something you do every day, not just on holiday. Time your sessions, set goals that fit how you read, keep a streak alive and swap notes with friends in book clubs.

iOS · Coming soonAndroid On Google Play

Highlights

  • Reading timer and goals
  • Streaks and levels
  • Book clubs and leaderboards

+3 more

See ChapterUp
LoveLedger icon

LoveLedger

Keep score of the good stuff.

Mobile app Coming soon

LoveLedger is a points-and-appreciation ledger for two. One of you sets tasks and rewards, the other earns points and cashes them in — with appreciation notes, daily mood check-ins and a shared timeline of the good bits in between.

iOSAndroid Get notified at launch

Highlights

  • Tasks and rewards
  • Approvals and proof
  • Appreciations

+3 more

See LoveLedger

About

Small on purpose. Particular about the details.

Sideways Lab is an independent studio making apps for iOS and Android. We keep the list short on purpose: an idea has to earn its place before it leaves the whiteboard, and then it gets built properly — down to the details most people never notice but everyone feels. New apps arrive when they're ready, not before.

Founded
2026
Apps
1 live · 1 on the way
Platforms
Android · iOS on the way

Talk to the people who made it.

Partnerships, press, feedback or a bug you'd like gone — it all lands in one inbox, and a person reads it.

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Made with more care than strictly necessary.

© 2026 Sideways Lab Ltd

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