Fitness tracker

I built a small fitness spreadsheet store as a side project — would anyone actually pay £2.99 for these?
I’ve been experimenting with creating simple fitness trackers that don’t require another app or monthly subscription.
So far I’ve made:
🏋️ LiftLog Pro — gym & strength tracking
🏃 RunLog Pro — running, PBs & race goals
⚖️ CutLog Pro — weight loss, calories & progress
They’re £2.99 each, or I’ve bundled all three for £5.99.
This is my first attempt at selling digital products and I’ve currently made £0 from it, so I’m mainly looking for genuine feedback.
Do these look like something people would actually buy, or is there anything you’d change before I try properly promoting them?