InkAtlas: Fountain Pen Log

InkAtlas is an offline log for fountain pen people. Keep every pen, ink bottle and paper in one place, see which bottles are running low, and record how each pen + ink + paper combination actually writes. NEW IN 3.0 - A getting-started checklist, plus an optional sample collection that is clearly marked SAMPLE and removable in one tap. - Add a pen, ink or paper from inside the combo screen. New-item sheets have Cancel, and a note explains why Save is unavailable. - Bottle size presets (20 to 90 mL) and price right in the ink editor. - Ink this pen in one tap, with a Currently inked badge in your pen list. - Filled from bottle: log a fill and the bottle level drops by that pen's typical fill. - Optional cleaning reminders as local notifications. Permission is requested only when you turn them on. - Back up your whole atlas, photos included, to a JSON file, and restore it on a new phone. - Fixes a crash that could follow deleting a pen or ink that was currently inked or used in a blend. - Text follows your Dynamic Type size, with stronger contrast and VoiceOver labels for swatches. BOTTLE RUNWAY Estimates the fills left in each bottle from the pens currently inked with it, using the typical fill of each pen's filling mechanism (cartridge, converter, piston, vacuum, eyedropper and more). Bottles are ranked Critical, Soon or Comfortable, with an estimated days-left figure based on each pen's cleaning interval. All figures are estimates. COMBINATIONS, RATED Rate combos on shading, sheen, dry time, feathering and bleed-through, sort by any of them, and see the pen + ink pairs you have not tried yet. Tap an untested pair to start a combo with that pen and ink filled in. CURRENTLY INKED Track which pen holds which ink and when it was inked. Set a cleaning interval per pen, edit or delete entries, and undo an accidental flush. Flushed pens move to History. LEDGER, MIX LAB AND PALETTE Ledger: cost per mL, value left in each bottle, and estimated pages and fills, using the same per-pen fill amounts as Bottle Runway. Mix Lab: record blends of 2 to 4 inks with parts ratios and an approximate color preview. Palette: your inks on a hue wheel, color-family gaps and near-duplicates. Blacks and greys are grouped as neutrals instead of being counted as red. MORE TOOLS Ink sample vault, wishlist, notebook tracker, Color Match (find the closest ink you already own, from a color or a photo), Try Next suggestions, Insights and Stats, a reference of 75 ink property tags, nib widths from EF to Music, and a paper reference. EXPORT AND SHARE CSV export of your atlas, a printable PDF swatch sheet, and shareable swatch cards. PRIVATE BY DESIGN No account, no ads, no analytics. Your data stays on your device unless you export or share it. One purchase, no subscription.