Best REI3 Alternatives in 2026

Updated October 2026

20 apps from no-code app builders ranked against REI3 on the same published basis.

REI3 alternatives compared

#	App	Score	Free plan	From	Runs on
1	Bubble	9.7	Free plan	$32/mo	Android, iOS, Web
2	Zoho Creator	9.5	Free plan	Free	Web, iOS, Android
3	Retool	9.4	Free plan	$10/mo	Android, API, iOS, self-hosted, Web
4	FlutterFlow	9.4	Free plan	$39/mo	Android, iOS, Linux, Mac, Web, Windows
5	Clappia	9.3	Free plan	$8/mo	Web, iOS, Android
6	Draftbit	9.3	Free plan	$12/mo	Android, API, iOS, Web
7	Emergent	9.3	Free plan	$20/mo	Android, iOS, Web
8	AgilePoint NX	9.3	Free plan	—	Android, API, iOS, self-hosted, Web, Windows
9	Bolt.new	9.2	Free plan	$25/mo	Android, iOS, Web
10	Adalo	9.2	Free plan	$36/mo	Android, iOS, Web
11	MIT App Inventor	9.1	Free plan	Free	Android, iOS, Linux, Mac, Web, Windows
12	Appfarm	9.1	Free plan	€2,350/mo	Web, Windows, Mac, iOS, Android
13	Base44	9.1	Free plan	$16/mo	Android, API, iOS, Web
14	Google AppSheet	9.0	No	$5/mo	Android, API, iOS, Web
15	Ragic	9.0	Free plan	$5/mo	Android, API, iOS, self-hosted, Web
16	Noloco	8.9	Free plan	$79/mo	Web, Windows, Mac, iOS, Android
17	Ninox	8.9	Free plan	€25/mo	Android, API, iOS, Linux, Mac, self-hosted, Web, Windows
18	OutSystems	8.8	No	—	Web, iOS, Android
19	Convertigo	8.7	Free plan	—	Android, API, iOS, Linux, Mac, self-hosted, Web, Windows
20	Jotform	8.7	Free plan	$39/mo	Web, iOS, Android

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What is the best alternative to REI3?

Bubble, number 1 in no-code app builders with a score of 9.7 out of 10. The others here: Zoho Creator, Retool, FlutterFlow and 16 more.

What is the best free alternative to REI3?

Bubble is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.