2026 TCS London Marathon User Reviews

What users say

Top reviews

Didn’t work

I followed the instructions to the letter, even got my countdown to set off, and hey presto, thirteen miles in I’m told I’ve just completed my first mile. To be fair once it had kicked in I was wishing it hadn’t because the motivational stuff was cringy and woeful.

App is Glitchy

A number of us sent message boosts in for our runner and they didn’t receive them at all. No email after either. Nothing. Very disappointed.

This app sucks

It doesn’t work

Don’t work at all

The app failed to load at any point during the marathon so we had no idea where the person we were supporting was which made being there impossible and frustrating

Easy to use but too slow

Useful interface but on London marathon 26 the app failed to show the person I was supporting progress. The mobile network being slow is also a problem during
busy events.

Shame it didn’t work

Spent most of the race trying to get this to work but no signal wherever we were standing

Useless - not accurate

This app is as much use as a chocolate teapot! Runners are not tracked accurately, so as a charity, we missed many of the runners that were running to support us. Could do better!!

Temperamental

Worked for about five minutes and then you couldn’t use it.

Junk

Worst app i’ve ever used

Appalling

This is one of the worst apps I have ever seen. It simply doesn’t work. Over the 2.5 hours so far it has only “relocated” my tracked participant twice - just abysmal.

I have to wonder if they are using the British Airways software team!

It’s good

It’s good because I can see where people are

App not working

How can I track my son running if the app has stopped working? Unacceptable when you want to track the London marathon live!!

Tested it?

Search function is terrible. Club name with “&” breaks it, and only 20 name returned (from the four or five clubs with the same start to their name). I get to “D” alphabetically.

POS App

Absolute POS app. Won’t connect to server.

Terrible, Nothing Works

Can never connect to the server to refresh info. When trying to log in it regularly fails with an error message. Totally useless app.

Cannot connect with server

Tried to find participant by bib number or name but keep indicating cannot with server. It is impossible to be a supporter by using this app.

Doesn’t work unless on WiFi

Despite triple checking my settings- this app doesn’t work off WiFi so can’t use it to track athletes whilst I’m out or away from WiFi.

Lack of functionality

As someone who works for a National Charity tracking our runners is an invaluable tool. Why does the app not associate ballot runners with their chosen charity and why has the limit of participants to follow been set at 30!

Perhaps an app for charities should be considered.

Mileage tracking is so far out

I’ve tried 2 practice 5k runs with my watch and phone both measuring 3.2 miles the app only shows 1.7 it’s so far out I’m going to have to run a lot of extra miles to get it to 26.2. Only 1 day to get this app fixed. I’ve raised a case on the website but no response yet

Not an “inclusive” App

I wanted to use this App on my iPhone SE [gen 1] which is light enough and small enough to carry round 26.2 miles. The App wouldn’t download unless I’ updated’ to an iOS version my iPhone doesn’t support. So much for the London Marathon being ‘inclusive’ when some participants such as myself are unreasonably excluded
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