There is no doubt that SP9AMH and G3CWI are correct in saying that CW is a much more profitable mode for SOTA activations than the various datamodes. Where both OM's are wrong is in any suggestion that CW is in competition with datamodes.
Making datamodes work for SOTA activating, while limiting myself to a mobile phone that I was already carrying anyway (don't want to take a laptop or a tablet), is a personal challenge that I am enjoying. I could probably help myself out by getting something more up-to-date than my currently-used old Samsung Galaxy S3 Neo, in terms of the JT65 ops.
Still got RTTY and SSTV to try from a summit too. I really ought to crack on with that.