RunPacePlan is a free set of running tools for training plans and race-day pacing. On the web and Android you can build a plan for a 5K, 10K, half marathon, marathon or 50K, use a pace calculator, and generate pace bands. No account is needed for free use. A Pro subscription is available on Android.
Building a training plan and a race pace band usually means juggling spreadsheets and calculators. RunPacePlan puts plans for 5K to 50K, a pace calculator and hill-adjusted GPX pace bands in one free tool, with no account needed.