Mockey's offer is simple and, by the evidence, accurate. The free tier produces images without a watermark, which is unusual in this category, and its reviewers complain about resolution and about the model catalogue rather than about being misled. Resolution is the paid upgrade, and that is stated.
Mediamodifier publishes a free Starter tier listing templates, fonts and image tools, and we rechecked the pricing page. What we cannot verify from outside is whether it delivers, and several reviewers say flatly that it does not. Two put it in almost the same words: that the free plan is a lie and there is no free option.
We are not in a position to settle that, and it would be dishonest to pretend otherwise. What we can say is that one of these two has a free tier nobody argues about, and on a comparison whose entire axis is the free tier, that asymmetry is the finding.