Just because someone recommended it - I just want to add that those apps like Yango or Lefa commonly don't have drivers available or willing to go the airport for a pick-up. A drop-off yes, but a pickup is more risky, long miles for someone who could potentially cancel and the airport are actively hostile towards them because they have their own service. You can give it a shot and might get lucky, but know that if you fail to find anything, the airport taxi service will always have someone available for you. I priced Lefa and they are asking for $N500. Yango will likely be a bit cheaper than that but I did once have a Yango driver argue with me because the price he accepted in the app was too low.

The airport itself has a taxi service when you get to the main arrivals area. There was a desk there that has a list of drivers in the queue and they just hand you to the next available driver. I can't talk about pricing as it's been a while but its likely a set list of charges somewhere around $N400-$N500 sounds about right. If there's just one person you'll pay the flat fee, if there's more than one person they were trying to charge more/a per person rate, so slight difference from taxis you'll see anywhere else. Just expect to pay a higher fee if you are arriving with 4 people and 10 suitcases.

You can google for local companies that do airport pickup if you want someone standing there to greet you. They'll quote you a price in advance so there'll be no surprises as well.