Geektrack lets you log your data in various simple formats.
This format is useful for tracking, for example, how many push-ups you did, e.g.:
10
It's possible to log negative values (note the absence of the whitespace here):
-20
You can also log fractional values - for example, how many litters of water you had:
2.5
(Note that for fractional values you need to use the dot, not the comma)
Logging time is useful for tracking activities prolonged in time, e.g. how long you have been gaming, or how long did you hold plank, e.g.:
1h30
20m
55s
This format allows you to enter any combination of hours, minutes, and seconds. Note that there should be no spaces b/w them.
Once you logged at least once using this format, Geektrack will show you the result formatted to time, e.g. "10h 33m".
Note that once you started tracking time, if you enter just a number, it'll be recorded as amount of seconds, e.g.:
30
... is equivalent to:
30s
If you made a mistake by logging a wrong value, simply edit the message.
You may think that for deleting an entry, you simply would delete a message. Unfortunately, this wouldn't work, as Telegram currently cannot detect a deletion of a message in a chat.
Instead, to delete a message, edit it by removing the value in. For example, if you entered "10", simply edit the message and replace "10" with a dash. This will effectively delete the message.