Sourdough Companion - Crumb

Developed by Red Kite 9 Ltd., Crumb is a companion app for sourdough bakers. Track every bake from mixing your levain to slicing the finished loaf, log your starter feedings, and build up a personal record of what works — your hydration, your timings, your flour, your kitchen.

Record each bake step by step: feeding the starter, autolyse, mixing, stretch and folds, bulk fermentation, shaping, proofing and baking. Add notes and photos along the way, including the all-important crumb shot, so you can compare loaves and learn from every bake.

Keep your starters healthy too — log feedings with ratios and flour types, and see at a glance when a starter was last fed.

Crumb is free to download and use. An optional subscription unlocks all premium features, so you can start tracking your bakes straight away and upgrade when you're ready.

Crumb is a personal tracking and note-keeping tool. It does not provide professional baking instruction, and it is not a food-safety tool — always use your own judgement when preparing and consuming food.

Terms and Conditions

Last Updated: 2026-Jun-12

Welcome to Sourdough Companion - Crumb ("Crumb"). These Terms and Conditions ("Terms") govern your use of the Crumb mobile application ("App") created by Red Kite 9 Ltd. ("we," "us," or "our"). By downloading or using the App, you agree to these Terms.

1. Description of Service

Crumb is a personal tracking tool for sourdough baking. It lets you record bakes, log starter feedings, keep notes and photos, and review your baking history. The App is a record-keeping aid only. It does not provide professional baking instruction or food-safety advice, and it does not verify, correct or interpret your recipes, timings or results in any way.

2. Subscriptions and Payments

• Freemium Model: The App is free to download and use. An optional subscription ("Premium") unlocks all of the App's premium features.
• Subscription Options: The subscription is available as a monthly or yearly plan. The price and billing period of each option are shown in the App before you confirm any purchase.
• In-App Purchases: All payments are processed through the Apple App Store (IAP). Payment is charged to your Apple ID account at confirmation of purchase.
• Auto-Renewal: Subscriptions automatically renew at the then-current price unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period.
• Management: You can manage or cancel your subscription, or turn off auto-renewal, in your App Store Account Settings after purchase.
• Refunds: All billing and refunds are handled exclusively by Apple. We do not have the authority to issue refunds directly.
• Changes to Features: We may change which features are included in the free tier and which require a subscription, and may add, modify or remove features from time to time.
• Apple's Terms of Use: Your download and use of the App, and any subscription, are also subject to Apple's standard Terms of Use (the Licensed Application End User License Agreement), which can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

3. Usage Requirements

You are responsible for ensuring your device meets the technical requirements to run the App. You must be 13 years of age or older to use the App. You agree to use the App only for lawful, personal, non-commercial purposes.

4. Your Content

Any bakes, starter records, notes, photographs and labels you create within the App ("User Content") remain yours. You are solely responsible for the User Content you create and must not store any unlawful material or material that infringes the intellectual property rights of others. Crumb does not distribute recipes; if you use the App alongside a recipe or formula, that recipe remains the property of its respective author or publisher and is subject to their own terms of use.

5. Intellectual Property

All content, features, and functionality within the App (excluding your User Content) are the exclusive property of Red Kite 9 Ltd. and are protected by international copyright and trademark laws. Crumb is an independent app and is not affiliated with, endorsed by, or sponsored by any flour producer, bakery, recipe author or publisher.

6. Disclaimer — Baking Results and Food Safety

Crumb is provided as a convenience aid only. While we work hard to make tracking reliable, you are responsible for your own baking and for the safety of the food you prepare. We do not guarantee that records, timers or reminders in the App will be correct, complete, delivered on time or saved without error, and we do not guarantee any baking outcome.

The App is not a food-safety tool and does not provide health, hygiene, allergen or nutritional advice. You must use your own judgement — and follow official food-safety guidance — when maintaining a starter and preparing, storing and consuming food. We accept no responsibility for missed feedings, failed bakes, spoiled starters, lost records, or any resulting loss — including but not limited to wasted flour, ingredients or time, or any illness or harm arising from food you prepare or consume.

7. Limitation of Liability

Crumb is provided "as is" and "as available." To the fullest extent permitted by law, we are not responsible for:

• Loss of bakes, starter records, notes or photographs resulting from device failure, OS updates, uninstalling the App, account deletion, or iCloud sync issues such as insufficient iCloud storage or being signed out of iCloud.
• Failed or disappointing bakes, spoiled or neglected starters, or any cost or loss of ingredients or time arising from reliance on the App's records, timers or reminders.
• Any illness, allergic reaction or other harm arising from food you prepare or consume.
• Any indirect, incidental or consequential damages resulting from the use of, or inability to use, the App.

8. Governing Law

These Terms are governed by the laws of the United Kingdom, without regard to its conflict of law principles.

Privacy Policy

Last Updated: 2026-Jun-12

At Red Kite 9 Ltd., we take your privacy seriously. This Privacy Policy explains how Sourdough Companion - Crumb handles information for our iOS application. Crumb is designed to collect as little data as possible.

1. Data Collection and Usage

• Your Bakes and Starters: The bakes, starter feedings, notes, photographs and labels you create are stored on your device and synced through your own iCloud account so the App can save your records across your devices. This content lives in your private iCloud storage — we do not read, analyse, sell or share it, and we have no access to it.
• No Account Required: You can use the App without creating an account with us or providing any personal information to us. iCloud sync relies on the Apple ID you are already signed in to on your device.
• No Tracking or Advertising: We do not use third-party analytics or advertising SDKs, and we do not build advertising profiles about you.

2. Third-Party Services

Because the App uses Apple's In-App Purchase system to offer subscriptions, Apple processes your purchase and may collect certain transaction data. We never see or store your payment card details. Please refer to Apple's Privacy Policy for details on how Apple handles your information.

3. iCloud Sync

Crumb uses Apple's iCloud to sync and back up your bakes and starter records between your own devices. Your data is stored in your private iCloud account and counts against your iCloud storage allowance; if you do not have enough iCloud storage available, or you are signed out of iCloud, syncing may be paused or incomplete. iCloud is managed entirely by Apple under your control and Apple's terms — we cannot access your iCloud data. Please refer to Apple's Privacy Policy for details on how Apple handles iCloud information.

4. Data Security

Your baking data is stored on your device and in your private iCloud account, protected by your device's security and your Apple ID. We recommend keeping your iOS software up to date, using a device passcode, and securing your Apple ID with a strong password and two-factor authentication to keep your data safe.

5. Children's Privacy

Our App is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us at the address below and we will take steps to remove it.

6. Changes to This Policy

We may update our Privacy Policy from time to time. Any changes will be reflected by updating the "Last Updated" date at the top of this section. We encourage users to review this page periodically.

7. Contact Us

If you have questions about this Privacy Policy or how your data is handled, please contact us at:

Email:

Frequently Asked Questions

What does Crumb do?

It helps you track your sourdough baking. Log each bake from levain to finished loaf, record starter feedings, and keep notes and photos so you can compare results and improve over time.

Can I track my starter as well as my bakes?

Yes. You can log feedings for your starters — including ratios and flour types — and see at a glance when each starter was last fed.

Is the app free?

Yes, Crumb is free to download and use. An optional subscription unlocks all premium features, available as a monthly or yearly plan.

What do I get with a subscription?

A subscription unlocks all of the app's premium features. Exactly what's included in the free tier and what requires Premium is always shown in the App, along with the current prices, before you confirm a purchase.

Does it work offline?

Yes. Your bakes and starter records are stored on your device, so you can log and browse without an internet connection. When you're back online, your records sync via iCloud so they're available on your other devices.

How does syncing between my devices work?

Crumb syncs your records through your own iCloud account, so signing in to the same Apple ID on another device brings your bakes and starters with you. Syncing uses your iCloud storage, so it requires you to be signed in to iCloud with enough space available.

How do I cancel my subscription?

Since all transactions are handled by Apple, you can cancel by:

1. Opening the Settings app on your iPhone.
2. Tapping your Apple ID/Name at the top.
3. Selecting Subscriptions.
4. Choosing Sourdough Companion - Crumb and selecting "Cancel Subscription."

Does Crumb teach me how to bake sourdough?

Crumb is a tracking and note-keeping tool rather than a tutorial. It works alongside whatever recipe or method you already follow, helping you record what you did so you can repeat your best bakes.

Will the app tell me if my starter or bread is safe to eat?

No. Crumb only records what you tell it — it can't assess the condition of your starter or your bread. Always use your own judgement and follow official food-safety guidance when preparing and eating food.

Support

1. If you have any issues, reach out to us at