Support

No. There is no sign-in, and the core chart and calculators work offline.

No. It is a reference tool for trained technicians. Values are calculated and can differ slightly from manufacturer charts. Follow the equipment nameplate, the manufacturer’s instructions, local codes and your training.

Pro is linked to the Google account you bought it with. Install the app with the same Google account and use Restore purchase. You do not need to buy it twice.

Request it within 48 hours through your Google Play order history. Afterwards, email us and we refund if Pro does not work as described. Your statutory rights are not affected.

Only if you choose. The free version has a button, Watch an ad to unlock, that unlocks targets, the job log and reports for 24 hours; the number of unlocks per day and per install is limited. There are no banners and no interstitials, nothing plays automatically, and never before your first reading. Ads come from Unity LevelPlay (Unity Ads, ironSource Ads) after Google consent where required. In the EU/EEA, UK and Switzerland the app does not currently show ads. Pro is a one-time purchase that unlocks everything permanently, with no time windows and no ad to watch.

Your settings and saved jobs stay on your phone: uninstall the app or clear its storage in Android settings to delete them. Usage statistics and crash reports are deleted automatically after 2 months and 90 days; to delete them sooner, email us the Analytics ID shown in Settings › Privacy. See the privacy policy for ad data.