InstaCheckList PRO
The paid team edition. Manage projects, devices, checklist steps, photos, contractors, permissions, and reports in one cloud workspace.
Paid / 30-day trialTeams and contractorsNo spreadsheet setup
WEB APPS FOR EVERYDAY
For work, learning,
and play.
SONA CRAFT creates clear, practical web apps that are ready to use in your browser—no installation required.
OUR APPS
Available web apps
Choose from nine services for field operations, office work, learning, and events.
InstaCheckList
The free, lightweight edition. Prepare a Google Spreadsheet and share device-by-device field checks with a small team.
Free editionSmall field teamsGoogle Spreadsheet
Drawing AI
A drawing game for children and adults, with playful AI judging.
FreeJapanese / English
DestructionCert
Record data-erasure and physical-destruction work with photos and generate PDF certificates.
Free / PaidFor businesses
PDF Work Studio
Merge, organize, and redact PDFs directly in your browser.
Browser based
Marshmallow Challenge
Run team-building sessions with guided timing, measurement, and results.
FreeJapanese / English
Paper Human Tower
Guide a team-building activity using A4 paper and human figures from preparation through results.
FreeJapanese / English
Straw Bridge Challenge
Build a strong bridge from straws and tape with guided preparation, timing, measurement, and presentations.
FreeJapanese / English
QRtoQR
Scan QR codes and barcodes, match them with registered data, and display a corresponding code.
FreeJapanese / English