- Version: 1.0.1
- Size: 9.11 MB
- Release date: 2025-11-24
- Min iOS: 15.6
- Bundle ID: de.sonn-elektrotechnik.hhrechner
- Version: 2.1.0
- Size: 11.19 MB
- Release date: 2012-08-16
- Min iOS: 8.0
- Bundle ID: de.sonn-energie.hhrechner
Holger Sonn
Developer Portfolio
2 App Records