I had a planned inductions with my second baby and I used hypnobirthing techniques and if your hypnobirthing teacher is a sanctimonious purist she’ll tell you that you can’t do hypnobirthing with an induction.
However I can tell you that it did work for me. I was frightened to give birth again following a 38 hour labour following induction with my first that nearly ended in an emergency CS. Hypnobirthing allowed me to feel like I was in control of the process - I found the visualisations, positive affirmations and the breathing techniques very helpful. In fact I actually sent dh away so I could concentrate for about 6 hours! I spent that time pampering myself with good music and a film/book and some lovely scented hand cream.
Then as the induction started to gather pace I I used a long repeated track of rainforest sounds on my earbuds to help me through - that got me to fully dilated on only half a paracetamol.
Dh came back and I had to literally beg dh to go and get the midwife who had told me “there’s no way you’re ready to push, you wouldn’t be talking and laughing believe me!” But I was so in control of the pain. And then I said to her “look, I’ve had a baby and I’m concerned this one is coming now - please check” She said, “yes you’re at 10cm gosh” and had to run and get a trolley and zoom me off to the labour room as by that stage I really couldn’t walk as the baby was coming! I asked for an epidural at that point and everyone laughed (including dh) - it was far too late.
So - yes, I’m totally converted to hypnobirthing - if you can trust the process and make it “yours” by cherry picking the bits that you feel are really in tune with how your mind works.
By the way the labour was actually really still tough as in all the rush to get me to a labour room, I got a bit panicked and that meant I didn’t manage the process as well as I maybe could have. So I did indulge in gas and air - fabulous stuff. And there was a moment when I really wasn’t sure I’d made the right choice - it burns when the baby crowns. But no choice at that point and I’m not smug but I am proud that I did it (especially after the hellish experience of my first bungled induction!)