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Piano Sight Reading Practice
Sight reading · Music
Practice sight-reading anywhere, at your own pace. Pick bass or treble clef, dial in the note speed, and read the way you think — standard notation, Do-Re-Mi, or C-D-E-F.
Independent app studio
Minidiel
by BytieBell LTD
We build small, delightful mobile apps — the kind you actually enjoy opening every day.
Our apps
Little apps, made with care
A small, growing lineup — each app built to do one thing genuinely well. One’s live on Google Play today; the rest are on the way.
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Sky Clock
Sky: CotL companion · Tools
Never miss a moment in Sky: Children of the Light — a live server clock, event countdowns, reminders, and home-screen widgets, all in one calm, themeable app.
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Millu
Relationships · Lifestyle
Show up better for the person you love. Pick habits for each other, track cycles for any couple, keep a shared journal, and chat with a private AI that runs on your actual phone — not on Google, Meta or any online server, so nothing you say ever leaves your device.
pictreams
Photos · Utilities
Finally choose the one photo worth posting. Swipe to keep, delete, share or save — and Tournament Mode auto-groups your burst shots so your favourites battle it out. Everything stays on your device: no account, no tracking, and 15% of proceeds go to charity.
About the studio
Small team, big care for the details
Minidiel is the app studio of BytieBell LTD. We design and build focused mobile apps that respect your time and your privacy.
Every app we ship is meant to do one thing genuinely well — no clutter, no dark patterns, no selling your data. If you've got feedback or a question, we'd love to hear from you.
Contact
Say hello
Questions, support, press or partnership — reach us any time at:
lorenzo@minidiel.com