Nice
been canning for years and always second guessed my times. this just tells me straight up if a batch is safe. no fluff
Just works
No ads, no subscription nonsense, tells me my jars are safe. That's all I wanted.
Free
About
This app provides USDA-tested home canning recipes and processing times, cited directly from official sources. It offers altitude-aware calculations, a pre-process checklist, and a jar-failure diagnostic tool to ensure food safety. All data is stored locally, with no ads or subscriptions.
✓USDA-tested recipes with inline citations
✓Altitude-aware processing time and pressure calculations
✓Pre-process checklist for safety
✓Jar-failure diagnostic tool
✓Offline functionality
✓Recipe alteration checks
✓Jar log for batch history
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What's New in Seal
1.6
July 25, 2026
• Fixed Restore Purchases so returning customers reliably get their unlock back • The free trial now shows how much time is left • Confirmed every processing time against the NCHFP primary sources
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FAQ
What is the price of Seal: Home Canning Safety?
Seal: Home Canning Safety is a paid app with a one-time purchase price of $6.99. There are no subscriptions or ads, and it does not require an account or cloud services.
Does Seal: Home Canning Safety have ads?
No, Seal: Home Canning Safety is ad-free. The app explicitly states 'no ads' and focuses on providing a secure, offline experience for users.
What devices does Seal: Home Canning Safety support?
Seal: Home Canning Safety is available for iOS devices, specifically iPhones and iPads. It is designed to work offline on these platforms.
How often is Seal: Home Canning Safety updated?
The latest version of Seal: Home Canning Safety is 1.3, which was last updated on July 2, 2026. Updates are provided to ensure the app reflects the latest USDA guidance and maintains functionality.
What is the age rating for Seal: Home Canning Safety?
Seal: Home Canning Safety has an age rating of 4+. This indicates it is suitable for children and adults, with no mature content.
Can I use Seal: Home Canning Safety without an internet connection?
Yes, Seal: Home Canning Safety works offline. It does not require an internet connection, an account, or cloud services, making it accessible anytime, anywhere.
What sources does Seal: Home Canning Safety cite for its canning information?
Seal: Home Canning Safety cites USDA-tested recipes and processing times directly from sources like the USDA Complete Guide to Home Canning and the NCHFP. It also references Ball Blue Book and various Extension services for accuracy.
How does Seal: Home Canning Safety help with potential canning mistakes?
The app includes an 11-item Pre-process Checklist mirroring common mistakes and a symptom-first jar-failure diagnostic. For critical issues like bulged lids, it prominently displays CDC warnings about botulism toxins before offering disposal advice.