As you could see, although these solutions try to tackle the same problem, each took a slightly different approach. They do have their limitations as well, mostly because Slack allows only certain elements to be built within the app. For example, if you are looking for a desk booking tool with interactive floor plans, advanced room & desk management, a Slack-native app may not address your needs. We would recommend taking a look at more enterprise solutions, like Robin and Envoy (and unsurprisingly those are way pricier than the options above).
We have a lot of respect for the teams behind the products above. Each option caters to slightly different needs. Officely caught our eye with a wide feature set - from reserving a parking spot to booking lunch. We are kindly ignoring their claim to be the only desk booking tool living on Slack :)
BUT. Buka costs less than half of any alternatives while providing all the important, essential features. Forgive us for being biased, but if you use Slack and need a solution to manage your hybrid office, the choice is a bit obvious :)