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Solar Sizer privacy policy
The short version
- We collect no data. Solar Sizer has no account, no analytics, no ads and no crash reporting.
- What you type is saved only on your phone. We never receive it.
- Nothing is sold or shared, because we never have it.
- You can export it, or erase it, any time.
Who we are
Solar Sizer is published by Back Forty Apps (“we”). You can reach us at [email protected].
What the app stores, and where
Your load list, system assumptions, saved plans, your light/dark choice, text size, and whether you have seen the welcome screens.
All of it lives in the app’s private storage on your device. It is not sent to us or to anyone else. Your phone’s own backups (such as iCloud or Google device backup) may include it, under your Apple or Google account settings.
What we collect
Nothing. The app contains no analytics, advertising, tracking, crash-reporting or payment tools, and it does not send your information over the internet.
Permissions
| Permission | Why |
|---|---|
| None | Solar Sizer does not ask for your location, camera, microphone, photos, contacts or tracking permission. |
Links to other websites
The app links to NREL PVWatts and NSRDB so you can look up peak sun hours. They open in your browser only if you tap them, and the calculator never needs them. Those sites have their own privacy policies.
Backup files you create
If you export a backup or CSV file, it is saved where you choose. If you share that file, whoever receives it can read it. Import only reads a file you pick.
Deleting your data
Use More → reset or erase in the app and confirm, or uninstall the app. Because we never have a copy, there is nothing for us to delete on our side.
Children
Solar Sizer is suitable for all ages. It does not collect personal information from anyone, including children under 13. It has no chat, no public sharing, no ads and no purchases in version 1.0. See our note for families.
Changes
If this policy changes, we will update it here and change the effective date at the top. If a future version ever needs to collect anything, we will say so here and in the store listing before that version ships.
Contact
Questions about privacy: [email protected]
See also: Back Forty Apps privacy overview · Terms of use · Solar Sizer support