Batterie Portfolio

Levain

Precision formulas. Guided timelines. Baker's wisdom.

The sourdough companion for bakers who care about the craft. Formula builder, bake timeline, and curated knowledge — all in your pocket.

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Your Process

You've baked dozens of loaves. Maybe hundreds. You can shape a decent batard, you know what a ripe starter smells like, and you have opinions about Dutch ovens.

But where does your formula live? A sticky note? A Notes app? A spreadsheet you built yourself because nothing else worked? Maybe it's just in your head — "I usually do about 78% hydration."

When you want to try 20% whole wheat instead of 10%, do you recalculate every number by hand? When you adjust the levain percentage, do you remember to recalculate the flour and water it contributes?

You deserve a tool that was built for this craft.

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Levain

Three tools. One beautiful app.

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Formula Builder

Baker's percentages, multi-flour blends, levain math — all calculated live. Save, name, and reload formulas with one tap.

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Bake Timeline

Set your start time and get every step timestamped — autolyse through final cooling. Built-in timers with notifications.

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Baker's Notes

Curated reference: starter health, hydration science, shaping techniques, scoring, troubleshooting. Offline, always there.

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Synced & Offline

iCloud sync across iPhone, iPad, and Mac. Works in any kitchen, regardless of connectivity.

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Crafted Design

Warm cream and parchment, deep saddle brown accents. Designed to feel like it belongs next to your banneton.

Be Honest

The loaf you're baking next weekend.

It's going to be the same recipe you always bake. But you'll know exactly what you did, exactly when you did it, and exactly how to do it again.

Your recipes, your process, your precision.

Levain is the tool your craft deserves.

Master the craft.

Levain is coming to iOS, iPadOS, and Mac.

Coming Soon

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