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RakCore

One developer. A growing family of offline apps.

RakCore is an independent studio behind CollectiGO and a small, growing set of offline-first utility apps — no accounts, no tracking, no cloud required.

Explore CollectiGOThe apps

Why RakCore

Every RakCore app follows the same rules: works fully offline, collects no analytics, and never asks for an account. The apps share a crab mascot and a design system — beyond that, each one solves exactly one problem well.

  • CollectiGO
  • CountiGO
  • MetriGO
  • LeveliGO
  • TraciGO

The apps

In beta

CollectiGO

Catalogue and share physical collections — offline, no account required.

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CountiGO

In development

An offline date calculator — differences, working days across 18 countries, and countdowns.

MetriGO

In development

A fast, fully offline unit converter with 15 categories.

LeveliGO

In development

Turns your phone into a bubble level, compass, altimeter, metal detector, lux meter, and ruler.

TraciGO

In development

Finds a lost Bluetooth device using nothing but signal strength.

One developer. A growing family of offline apps. - RakCore