CoreForge Apps

CoreForge LLC builds small, focused iOS apps that do one job well instead of trying to do everything. Each app below started from the same complaint: the existing options were either bloated with features nobody asked for, or they wanted an account, a subscription, and access to data that had nothing to do with the actual task.

Every app on this page runs its calculations on your device. There's no login, no server holding your financial numbers or your location history, and no dark-pattern upsells. If an app has a paid tier, it unlocks extra features, it never gates the core function behind a paywall.

Two different kinds of tools here

NestPlan, Sprig, and HarborCast are iOS apps, downloaded from the App Store, that run their calculations on your phone and keep working without a network connection once your data is entered. College Football Calendars and NFL Calendars are different: they're free websites, not apps. There's nothing to download or install. You visit the page, pick a team or conference, and subscribe to a link in whatever calendar app you already use (Apple Calendar, Google Calendar, or Outlook). The schedule then updates itself in the background every night, the same way a shared work calendar would.

The three iOS apps are supported by an optional paid tier that unlocks extra features. The two calendar sites are entirely free and supported by a small amount of advertising instead, since there's no app-store purchase flow for a website to use.

Common questions

Do I need to create an account for any of this? No. None of the five tools on this page have a login, a signup form, or a password. The three apps store what you type directly on your device; the two calendar sites don't ask you to identify yourself at all.

Are the calendar tools affiliated with the NCAA, the College Football Playoff, or the NFL? No. CoreForge is an independent software studio. The schedule data is pulled from public sports feeds to identify real games, kickoff times, and scores, nothing more, and no team names, logos, or leagues endorse this project.

Why build a retirement calculator, a net-worth tracker, a marine weather app, and two football calendars under one name? They started as separate personal projects, each solving one specific everyday annoyance the existing options didn't handle well. Keeping them under one small studio, rather than spinning up a company per app, is what lets each one stay simple instead of turning into a platform.

Will there be more tools added here later? Only when there's a real one worth shipping. Read more about how CoreForge decides what to build on the About CoreForge page.