What’s new.

v0.18 November 2026

• A new logo.
• More objectives to choose from when making a scale: 4×, 10×, 20×, 40×, 60×, 63× and 100×.

v0.17 November 2026

• Mycrometer has a new home at mycrometer.app. If you used the old address, see how to move your data.
• Mycrometer for Mac, iPhone and iPad is coming soon to the App Store: free, with a one-off Pro purchase.
• The ornamentation view and focus stacking move to Mycrometer Pro in the app.
• New terms of use: still free to use for anything, but the code is no longer open source.

v0.16 November 2026

• French, Spanish and Italian, with decimal commas. Choose the language at the bottom of the sidebar.

v0.15 November 2026

• Import and export Piximètre measurement files.

v0.14 November 2026

• Structures: measure basidia, cystidia, hyphae, pellis elements and more, each with its own results line.
• Collection details for each sample (date, location, habitat, collector, voucher, iNaturalist and Field Mycologist UK numbers) and the mount or stain for each photo.
• Redo, spore volume (Ve), and a confidence line that says when the means are stable.

v0.13 November 2026

• Works much better with a keyboard and screen readers. Pick a measurement’s end and nudge it with the arrow keys.
• Uses less memory with many photos, and backups can be split into parts when they get very large.
• Warns if Mycrometer is open in two windows at once, so one can’t overwrite the other’s work.

v0.12 November 2026

• Thinner measurement lines, so small spores at low magnification stay visible.

v0.11 October 2026

• A more reliable division count when calibrating at low magnification.

v0.8 September 2026

• Disclaimer and licence. Help rewritten for every kind of device.

v0.6 September 2026

• The phone and tablet version: a bottom sheet, pinch to zoom, touch and hold to place a point with a magnifier above your finger, and sharing to other apps.

v0.5 September 2026

• Back up everything (scales, samples and photos) in one file, and restore it on another device.