There are 4 people out of 40 below the 3 apples/year mark and I served them in a PGI (progressive guaranteed income way). The inflation was 9 apples this year which means we minted 109 apples and had a 9% spike in commodity prices when we issue the UBI.
At Turnson's orchard, they also have 40 people, 4 below the 3 Apples/year mark, but they decided to give everybody a guaranteed income of 3 apples. They call it "UBI" and claim it will work wonders. Let's see: Turnson creates 120 new apples to cover the UBI on top of the 100 apples his orchard actually produces. The inflation is 2.4x so people who had 200 apples got another 3 apples, and ended up with the equivalent value of 84.5 apples. People who had 0 apples also got 3 and ended up with a grand equivalent buying power during commodity spikes of 1.25 apples.
At Turnson's orchard with UBI, the poorest of the poor ended up with 1.25 apples, and everybody else's currency devalued substantially.
At our orchard, with PGI, we were able to give apples to the poorest and neediest without destroying our currency's value or buying power. Inflation 9% during issuance of currency (See Kuwait in 2011 doing their UBI thing - tis one googles deep.) At Turnson's in this example, inflation is 2.4x during currency issuance and is supposed to even-out to some midpoint between 1.0 and 2.4x. 1.09 to 1.0 has the midline of 1.045 so there is more longterm inflation no matter what. How much depends on how important you think it is to devalue currency by giving some to everyone at the same time.
(Additionally, without an incentive to work, stay employed, or provide value to society, why would people not just accept their cheques and bail? Nobody in blind support of UBI seems to think there are freeloaders or slackers in the world)