I built a new CLI-based Reward Calculator. It uses a static list of sharing delegates percentages so you can leave only your favorite ones in the config. The tool is available at https://github.com/geopsllc/vote-check
Devnet tools updated for Core 3.0. Alternative ARK explorer available at https://ark.geops.net/
Tools updated for Core 2.7
Core-Conrtol updated with support for the core-chameleon plugin.
Both tools fully updated for Core 2.6 along with multiple fixes and improvements. Visit the github pages for more details.