There is one important factor your left out in your reviews…
COST (in U.S. dollars)
(1) Bootstrap Studio - $60 one-time fee, includes lifetime updates, includes 5 free website hosting slots, includes free form email service. For beginners, I don’t think anything comes remotely close to this software value in terms of features you get for the price.
(2) Pinegrow - Basic subscription is $99 PER YEAR, Annual (One-time) is $150 for one year (interactions (animations) not included & cost an extra $30 IIRC.) Wordpress version - add $50. Tailwind Version - add another $50. No free hosting, no forms. It’s a powerful platform, with dedicated developers and a good user base, but suffers from a somewhat cludgy UI, mediocre documentation, and a lot of old tutorials and videos that don’t align with the current version’s UI. For a beginner, I can see them easily quitting PG out of frustration over the aforementioned things.
(3) Wappler - Basic is $240 and Pro is $480!!! PER YEAR This program is quite expensive, and probably a hard nut to justify for many freelancers or casual developers. It says Wappler includes free Google Firebase hosting. I can’t comment on that, or any of the other program features because I don’t own Wappler. I do own BSS and Pinegrow, but obviously Wappler is the only one of the three that builds both front-end and back-end websites (unless you count Pinegrow’s WP version.) So Wappler’s significantly higher cost may be justified if you are building large or complex, database-driven websites for clients.