Install these on home Wi-Fi before you fly, along with the eSIM.

Careem is the local rideshare and does more than cars: bikes, deliveries and payments sit in the same app.
Uber works too and is worth having as a price check.
Google Maps handles driving and Metro routing well. Traffic estimates here are accurate and worth trusting.
Talabat is the dominant delivery app and has the widest coverage by a distance.
Deliveroo operates here as well with a smaller and more curated list.
Both deliver to hotel lobbies without fuss.
Noon is the regional Amazon. If you forgot a charger it arrives the same day in most of the city.
The RTA app handles Nol card top-ups and Metro times if you are using public transport seriously.
A VPN is not needed for the web, but some voice and video calling apps are restricted on UAE networks. Check before you rely on one for a call.
You do not need a translation app. English is spoken everywhere and most signage is bilingual.
You do not need a currency app. The dirham is pegged, so the rate you looked up before you flew is the rate.
Every app here needs data the moment you land, which is exactly when airport Wi-Fi is at its worst during a conference week.
Unlimited data in Dubai from $19.00, paid in USDT from your own wallet for the same plan. Installed on home Wi-Fi before you fly, live the moment you switch off flight mode.

Side events, what closes for the race, and the queues worth avoiding. One email, the week before you fly.

More than a thousand side events run across TOKEN2049 week and there is no single directory for them. We keep one.
An ESIM has to be installed over Wi-Fi before you fly, and nothing starts counting down until you land. Finishing now costs you nothing.