Frequency Generator vs Papyr

Make sound part of your daily routine. With Sona, you can fall asleep faster, focus deeper, relax easier, or meditate longer—using science-inspired binaural beats you can fully customize, layered with immersive ambient sounds. Highlights • 4 modes: Sleep, Focus, Relax, Meditate — each with curated starter presets. • Binaural beats: Pick the beat frequency (e.g., 2–40 Hz) for your goal. Best experienced with stereo headphones. • Full frequency control: Choose Alpha, Beta, Delta, Gamma, SMR (≈12–15 Hz) or type any custom value. • Ambience mixer: Rain, forest, fire, ocean, wind, pink noise, and more — blend your perfect soundscape. • Background + Lock Screen: Keep playing with the screen off and control from the Lock Screen. • Timer: Set your session length; Sona stops automatically. • Clean, distraction-free design: Create, save, and reuse your favorite sessions in seconds. Brainwave primer • Delta (~0.5–4 Hz): Deep sleep and recovery • Theta (~4–8 Hz): Creativity and deep relaxation • Alpha (~8–12 Hz): Calm wakefulness • SMR (~12–15 Hz): Smooth, steady focus • Beta (~15–30 Hz): Active thinking and energy • Gamma (~30–40 Hz): Learning and integrative attention Tips • Use stereo headphones for binaural beats. • Start at a low volume and adjust gradually. • Pick a mode for your goal; fine-tune the beat frequency in small steps. Important Sona is not a medical device and does not diagnose or treat any condition. Do not use while driving or performing tasks that require full attention. Craft your sound universe with Sona — and gently guide your mind toward what you want to feel. Auto-Renewable Subscription Terms: •⁠ ⁠The payment will be charged to your Apple ID Account at confirmation of purchase. •⁠ ⁠The subscription renews automatically unless the auto-renew is turned off at least 24 hours before the end of the current billing period. •⁠ ⁠Your account will be charged for renewal within 24 hours before the end of your selected subscription. •⁠ ⁠Your subscriptions can be managed, and auto-renewal can be turned off by going to your App Store Account Settings. Terms: https://eatkdevtermsofuse.carrd.co

Papyr is a fast, private document scanner for iPhone and iPad. Capture pages, clean them up with smart editing tools, and export polished PDFs or images without creating an account. Everything happens on-device: scans, filters, OCR, titles, and tags stay local. Your documents never leave your phone unless you choose to share them. Highlights: - Printer-style scan enhancement for crisp, clean pages - Auto-detect edges with manual crop and rotate - Filters with brightness, contrast, and black point controls - Perspective correction for deskewing pages - Searchable PDFs with on-device OCR - Annotations for marks and signatures - Multi-page scans with reordering - Export as PDF, searchable PDF, JPEG, or PNG - Automatic titles and tags from OCR - Private by design with no account required