Our Apps

Three focused applications — each built to do one thing exceptionally well.

Sleep & Wellness

Somnaural

Somnaural is an ambient audio environment designed around the science of sleep. Layer multiple sound sources — rainfall, ocean waves, binaural tones, white and brown noise — and fine-tune each one with independent volume controls. Set sleep timers, create saved presets, and let Somnaural guide you to deeper rest.

  • Multi-layer ambient sound mixing
  • Sleep timer & fade-out controls
  • Binaural beat frequencies
  • Offline playback — no streaming required
  • Saveable custom presets
View App Page
🌙

SOMNAURAL

Sleep & Ambient Audio


PEMDAS

Math & Education

Education

Pemdas

Mathematics is more intuitive when you can see the steps. Pemdas walks through order-of-operations problems one layer at a time — Parentheses, Exponents, Multiplication, Division, Addition, Subtraction — highlighting exactly which operation applies at each stage. Great for students, tutors, and anyone who wants to double-check their arithmetic reasoning.

  • Step-by-step PEMDAS breakdown
  • Color-coded operation highlighting
  • Expression history & review
  • Student-friendly explanations
  • No account or internet required
View App Page

Puzzle & Games

Badly Defined

Language is wonderfully imprecise — and Badly Defined makes a game of it. Players are presented with intentionally vague, absurd, or hilariously wrong definitions and must guess (or argue about) the word being described. A perfect party game or solo brain-stretcher for word lovers and trivia fans.

  • Hundreds of ambiguous definitions
  • Solo challenge mode with scoring
  • Party / group pass-around mode
  • Difficulty tiers from casual to fiendish
  • New content added regularly
View App Page
🧩

BADLY DEFINED

Word Puzzle & Game

More Apps on the Way

We're always working on something new. Follow us or check back to see what's next from the Celestryll workshop.

Stay in Touch