What is RUNHEX?

RUNHEX is a free running app for iPhone that turns running into a ranked competitive game. RUNHEX records a run with GPS, converts it to an equivalent 5K time, and places the runner on a ladder of 9 tiers and 5 divisions — 45 positions from Iron V to Tera. RUNHEX is available on the Apple App Store and is built by an independent solo developer in the United Kingdom.

Last updated 9 September 2026 · Written by the developer of RUNHEX · RUNHEX on the App Store

How does RUNHEX rank a run?

RUNHEX scores every run as an equivalent 5K time. A 3K sprint and a 12K steady run are both converted to the 5K time they predict, using Riegel's endurance formula, so runs of different lengths can be compared on one scale. This is the mechanism that lets RUNHEX rank runners against each other without forcing everyone onto the same course or the same distance.

The RUNHEX ladder has nine tiers, each divided into five divisions (I to V), giving 45 ranked positions in total:

TierRoughly
IronEntry tier — every ranked runner starts here or above
Bronze
Silver
Gold
Platinum
Kilo
Mega
Giga
TeraTop tier — no divisions, an equivalent 5K under 13:31

Is RUNHEX free?

RUNHEX is free to download and free to use. Free accounts can rank up to 10 runs per calendar month. RUNHEX Pro is an optional subscription that removes that limit and adds training analytics. RUNHEX has no advertising and does not sell personal data — the RUNHEX privacy policy states exactly what is collected and which processors receive it.

What features does RUNHEX have today?

These features are in the version of RUNHEX currently published on the App Store.

What is RUNHEX building next?

The features in this section are in development and are not yet available in the published version of RUNHEX. They are listed so runners can see where RUNHEX is going, not to describe what RUNHEX does today.

Who makes RUNHEX?

RUNHEX is designed and built by one independent developer, registered in the United Kingdom. RUNHEX is not backed by a fitness brand or a hardware manufacturer. The whole application — the iOS client, the ranking mathematics, the backend and this website — is the work of a single person, which is why RUNHEX ships narrow, opinionated features rather than a broad fitness suite.

How is RUNHEX different from a normal running tracker?

A conventional running tracker records what a runner did and reports it back: distance, pace, elevation, a graph. RUNHEX does that too, but its organising idea is a competitive rank rather than a log. Three things follow from that:

What data does RUNHEX collect?

RUNHEX records GPS location during a run, and stores the run's route so it can be drawn on a runner's profile and on shareable images. RUNHEX also stores an account email address, a display name, and optional profile details given at sign-up. RUNHEX does not use advertising identifiers and does not sell personal data. The complete list, including every third-party processor, is in the RUNHEX privacy policy.

Where can I get RUNHEX?

RUNHEX is available on the Apple App Store for iPhone at apps.apple.com/app/runhex. An Android version of RUNHEX is in preparation and is not yet released. Support questions go to mindol0911@gmail.com, and the RUNHEX support page answers the common ones.

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