SpoolLedger
A USD 0.99 paid App Store download for filament facts you can trust — no account, subscription, in-app purchase, ads, tracking, or required internet connection.
SpoolLedger
Track every filament spool, remaining weight, print-job usage, original-currency material cost, storage location, and immutable correction in one private offline ledger.
Know what is on every shelf
Record brand, material, color, diameter, net and empty-spool weights, purchase cost, location, low-stock threshold, notes, and an optional photo chosen through Apple's system picker.
Keep every gram auditable
Log multi-spool print usage, scale corrections, discards, and reversals as immutable events; balances and original-currency cost snapshots remain traceable instead of being silently rewritten.
Own the facts and the backup
Review recent usage, low stock, material totals, and recorded costs; the USD 0.99 download includes text and CSV exports plus complete checksum-verified backups with selected spool photos.
Your data stays on your device
SpoolLedger is designed to work locally and privacy-first. Read the full privacy policy for details on what it does and doesn't collect.