Bug fixes and improvements.

v1.6 — quality release focused on batch processing and recent-results history. BATCH PROCESSING • WatermarkZ now batches up to 50 photos. Pick once, watermark all, save all. • EraseZ adds batch AI background removal — pick up to 20 photos, AI removes backgrounds from each, saved to Photos. RECENT HISTORY • PassZ — last 20 generated passwords (in-memory only, never persisted) • HashZ — last 20 hashes with input + algorithm (in-memory only) • TipZ — last 10 bills with full breakdown (saved across launches) • UnitZ — last 20 conversions with category and units NEW FEATURES • MetroZ time signatures — 2/4, 3/4, 4/4, 6/8 — with audible accent on the first beat • CompassZ bearing calculator — enter start coordinates + bearing + distance, get destination coordinates • ScanZ OCR language picker — 12 languages (Auto, EN, ES, FR, DE, IT, PT, ID, ZH, JA, KO) Plus minor polish, smaller bug fixes, and the usual round of performance improvements.

v1.5 — quality release with new features and many fixes: NEW • 10 Lock Screen and Home Screen widgets — Tool Launcher, Quick Scan, Password, Timer, Tip, Random, Metro, Invoice, Note, World Clock • In-app help — tap the ? button in any tool's nav bar to see full capabilities, features, and tips • InvoiceZ redesigned — From/To logos, 15-currency picker, payment terms (Net 7-90), NDA & IP clauses, scrollable layout • ScanZ improvements — captures only the visible preview, structured per-line results with copy buttons • QRZ improvements — center logo overlay on generated codes, "Create My QR" from any scanned code • Update banner alerts you when a new version is available FIXES (19 total — highlights) • ColorZ: HSL math now correct (was reporting HSB brightness); grayscale colors no longer crash to wrong hex; pixel sampling fixed on Retina photos • ClockZ: sub-hour negative timezone offsets (India, Nepal) now show the correct sign • UnitZ: large round numbers no longer render in scientific notation (1,000,000 m → mm now reads "1000000") • HashZ Diff: replaced set-based comparison with proper LCS — line order and duplicates are handled correctly • PassZ: known-bad passwords now labeled correctly; charset toggles always update the displayed password • CompassZ: shows a calibration prompt when sensors haven't settled • MetroZ / GifZ: timers no longer pause during scrolling or slider drags • PingZ: network monitor no longer leaks across view rebuilds • InvoiceZ: invoice numbers no longer waste on repeated "Generate PDF" taps; price field now persists when editing • EraseZ: tolerance is per-channel (was unexpectedly aggressive); color picker reads pure colors

Major update with new tools and features: • New tools: ColorZ, WatermarkZ, InvoiceZ, JSONZ, PingZ, MetroZ, TipZ, CompassZ, RandomZ, ClockZ, LoremZ, ConvertZ • New modes: ScanZ (EXIF metadata, object count), TimerZ (countdown, counter), HashZ (text diff) • Onboarding wizard — personalized tool recommendations based on your profession • "For You" section — favorites with drag-to-reorder • Home Screen & Lock Screen widgets • Toast notifications on all actions • New app icon • Redesigned compact tool layout • Bug fixes and performance improvements

New: ConvertZ — universal file converter for images, videos, audio, and documents New: Fresh app icon Renamed: ConvertZ is now UnitZ (unit converter) Added tool descriptions and search Bug fixes and performance improvements