Allotment apps

Oooh I'd like to know this too

I used an allotment planner online for 2 or 3 years but don't bother with it now.  Good for giving you an idea of what will fit where and shows up red if you go wrong on crop rotation. 

I have used a large book/ diary since I first started and I find that very useful, though again I fill in my diary on here now and use  the book for lists of things notes to remind myself, and ideas.  I do have outline plans of my 2 plots which I got from the online planner in my book and I refer to that when working out what I can fit in. So general feeling from me is useful tool when you first start but you will probably move on to other ways later.