These are the listings closest to EpubKit Pro in what they say they do. Comparable, not endorsed: the ranking is the catalog's, and the judgement is yours.
Web to EPUBDescribes nearly the same job, smaller audience · More sites but fewer permissions than the original549 users★ 5.0Compare side by side
Web to EPUBDescribes nearly the same job, smaller audience · Wider access than the original1k users★ 5.0Compare side by side
dotEPUBDescribes nearly the same job, with an established audience · Fewer sites but more permissions than the original30k users★ 3.9Compare side by side
EpubifyDescribes nearly the same job, smaller audience · Wider access than the original26 users★ 5.0Compare side by side
Comparable listings are pre-computed from the meaning of each store listing, then shown with the audience and rating from our latest pass over the store. Access compares where each listing can run (every site, how many site patterns) and how many browser permissions it declares, against the extension it would replace. Narrower is not a verdict on safety: compare what each needs for the job.