For kit, fruit, grape, mead and cider
Brixa is the winemaker’s calculator, living inside a batch log. Sulfite, acid, sugar and blending math computed inside the live batch, auto-filled from readings you already logged — and every answer stated as an action you can carry to the carboy, never as a bare number.
Brixa has not been released yet — this page goes live with the App Store listing. iPhone · iOS 17 and later.
The one idea
Every other tool hands you a free SO2 reading and leaves you to work out the dose. Brixa already has your pH from this batch, already knows your volume, already knows the molecular SO2target that pH implies — so it skips straight to the sentence you actually needed.
The same shape holds across the suite: chaptalization to hit a target ABV, acid addition and reduction on TA, backsweetening with sorbate and KMS, blending by Pearson square, and Brix ↔ SG ↔ Baumé with temperature correction.
Batch 7 · Elderberry · day 12
Brixa says
Brings free SO2from 18 to 30 ppm — the level that holds 0.8 ppm molecular SO2 at pH 3.42. Dissolve in a little must, stir gently, re-test in 24 hours.
Illustrative figures. Brixa shows its working for every result, and you remain responsible for verifying any addition.
The batch log
The gravity curve is the spine of the app. Readings drop onto it as you take them; the calculators read off it without asking you to retype anything. A stall is visible as a flat run rather than a number you have to remember from last Tuesday.
Photos, tasting notes and additions sit on the same timeline, and the whole batch exports as a PDF report or CSV whenever you want it out.
What you get
Kit, fruit, grape, mead and cider are all first-class. Nothing here assumes you are brewing beer.
Every reading you take — SG or Brix, temperature, pH, TA — lands on one amber line that fills as the ferment runs. Day count, phase strip, attenuation and ABV update as you log. It reads like a cellar book, not a spreadsheet.
Tell Brixa which kit you bought and it loads the manufacturer's step schedule with every date pre-computed from your start day. Rack, stabilise, degas, bottle — scheduled, with reminders that let you log the reading without opening the app.
Price the juice, the yeast, the nutrient, the sulfite, the corks and the bottles. Brixa carries the cost through racking losses and tells you what a finished bottle actually cost you. One number, honestly earned.
Print a tag, tie it to the vessel, scan it with the camera and the right batch opens. No more writing on a hang tag and retyping it into a spreadsheet — and no more moving the wrong tag at racking.
“Batch 7 — day 12 in secondary, rack in 3 days” on your lock screen. Glance at the ferment without unlocking anything. No competitor in the category ships one.
No sign-up, no server, no email address, no password. Everything is stored on your device. iCloud sync is optional and goes into your own private database. The cellar has bad signal; the app does not care.
A look inside
Slot 01 · Cellar — batch list· 1290×2796
Slot 02 · Batch detail — gravity curve· 1290×2796
Slot 03 · SO₂ calculator — the verdict· 1290×2796Pricing
There is no server to rent, so there is nothing to bill you for every year. A subscription exists for people who would rather spread it out, but the lifetime unlock is the one we actually want you to buy.
Prices in USD; local pricing is set by Apple. Purchases are handled entirely by Apple — we never see your payment details. See the terms for auto-renewal details.
Questions before you start? Read the support page.