Back Forty Apps

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Terms of use

Effective November 12, 2026 · Applies to Well Watch, Septic Watch, Cellar Keeper, Solar Sizer, Backup Watts and backfortyapps.com

By using a Back Forty app or this website you agree to these terms. If you got an app from the App Store or Google Play, that store’s own terms also apply.

Planning tools, not professional advice

Our apps help you keep records and make rough plans. They are not a certified lab, a permit, an engineering design, electrical advice, medical advice or a food-safety guarantee. Reference numbers come from public sources named in each app, and those sources can change. Check anything important with a qualified professional, your local authority and your equipment’s manuals.

Your data

Your records stay on your device. We don’t have a copy, so we can’t restore them if your phone is lost or the app is deleted. Export a backup if your records matter to you.

Price

Version 1.0 of each app is free, with no ads and no in-app purchases.

Fair use

Please don’t copy, resell or reverse-engineer the apps or this site except as the law allows.

No warranty

The apps and site are provided “as is” and “as available,” without warranties of any kind, to the fullest extent the law allows.

Limitation of liability

To the fullest extent the law allows, Back Forty Apps is not liable for any indirect or consequential damages, or for loss, illness, injury or property damage that comes from relying on an app’s estimates, reminders or reference information.

Changes

We may update these terms. We will change the effective date above when we do.

Contact

[email protected]