The applicators shown, and especially the Tindie one, don't seem to do anything about precise dispensing volume. I get the same results from a 1ml syringe and whatever needle is the right size for the particular job. Cost is hard to say because I buy the syringes and needles in bulk, but they are cheap enough that they are disposable after a single job (although I use them as long as they keep working, which can be a looong time).
To use, I take the 1ml syringe and squirt some paste into it from the master 10cc jobby (which then goes back into the fridge for longevity). Fit the needle, point, squirt. Since I'm a cheapskate I buy proper syringe needles, so before using a new one I clip the end to take off the sharp bit, and then file the now blunt end smooth. A few seconds is all it takes, and saves a tiny fortune.
The only drawback is the strange looks from the pharmacist when I buy the bits - probably thinks I'm a junky. Fixed that by buying online instead
These dry out eventually, but there isn't much paste in there so it's not a big problem to bin 'em and start again when that happens. The master 10CC lasts a lot longer than if it was used directly, though.