Best REI3 Alternatives in 2026
The top REI3 alternatives are Bubble, Zoho Creator and OutSystems: 15 No-Code app builders our editors would look at instead of REI3, in our ranking order.
REI3: A low-cost, self-hosted builder for structured browser-based business apps. Where it falls short: published positioning centers on browser-based applications.
Switching from REI3? For most no-code app builders buyers the best REI3 alternative is Bubble, built for full-stack web and mobile app builders. On a budget, Google AppSheet starts at $5/user/mo. ServiceNow App Engine offers the most app limit (3 apps).
Why People Look for an REI3 Alternative
- Published positioning centers on browser-based applications
- No AI features are included
- Professional pricing uses several user-count bands
Quick Picks by What You Need
- Best overallBubble9.4
Full-stack web and mobile app builders
Visit Bubble - Lowest priceGoogle AppSheet9.0
Paid plans from $5/user/mo
Visit Google AppSheet - Best free optionBubble9.4
Has a free plan
Visit Bubble - Most app limitServiceNow App Engine8.9
3 apps
Visit ServiceNow App Engine
All 15 REI3 Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forFull-stack web and mobile app builders
- Better than REI3:
- Editor score 9.4 vs 3.0
A broad no-code builder for full-stack web apps and native mobile publishing.
- Built-in database
- Mobile publishing
- User authentication
9.4/10★★★★★Visit Bubble -
Best forBusiness apps with strong reporting
- Better than REI3:
- Editor score 9.3 vs 3.0
A broad no-code-to-low-code toolkit for business apps with strong reporting.
- Built-in database
- Mobile publishing
- User authentication
9.3/10★★★★★Visit Zoho Creator -
Best forGoverned enterprise applications
- Better than REI3:
- Editor score 9.2 vs 3.0
A governed platform for enterprises building web, mobile, API, and AI applications.
- Built-in database
- Mobile publishing
- User authentication
9.2/10★★★★★Visit OutSystems -
Best forEnterprise-grade cross-platform development
- Better than REI3:
- Editor score 9.1 vs 3.0
A broad low-code platform for enterprise web, mobile, data, and integration work.
- Built-in database
- Mobile publishing
- User authentication
9.1/10★★★★★Visit Mendix -
Best forData-driven business apps
- Better than REI3:
- Editor score 9.0 vs 3.0
A flexible no-code choice for data-driven apps, automation, and mobile workflows.
- Built-in database
- Mobile publishing
- User authentication
9.0/10★★★★☆Try Google AppSheet -
Best forGoverned enterprise app portfolios
- Better than REI3:
- Editor score 8.9 vs 3.0
A governed app platform for enterprises that need workflow, data, mobile, and integration capabilities.
- Built-in database
- Mobile publishing
- User authentication
8.9/10★★★★☆Visit ServiceNow -
Best forOracle-centered web applications
- Better than REI3:
- Editor score 8.8 vs 3.0
A strong choice for data-driven apps built around Oracle Database.
8.8/10★★★★☆Visit Oracle APEX -
Best forRelational apps needing cloud or self-hosting
- Better than REI3:
- Editor score 8.7 vs 3.0
A broad low-code platform for tailored relational apps across cloud and self-hosted environments.
8.7/10★★★★☆Try Claris FileMaker -
Best forInternal tools and data-connected apps
- Better than REI3:
- Editor score 8.6 vs 3.0
A flexible no-code platform for internal tools, workflows, databases, and mobile apps.
8.6/10★★★★☆Visit Retool -
Best forSpreadsheet-based internal apps
- Better than REI3:
- Editor score 8.5 vs 3.0
A practical choice for spreadsheet-based internal apps and workflow tools.
- Built-in database
- Mobile publishing
- User authentication
8.5/10★★★★☆Visit Glide -
Best forDesign-led native mobile apps
- Better than REI3:
- Editor score 8.4 vs 3.0
A design-led builder for native mobile and web apps with code export.
- Mobile publishing
- User authentication
- API integrations
8.4/10★★★★☆Visit FlutterFlow -
Best forStructured business databases and workflows
- Better than REI3:
- Editor score 8.3 vs 3.0
A structured no-code platform for business apps, workflows, governance, and reporting.
- Built-in database
- User authentication
- API integrations
8.3/10★★★★☆Visit Quickbase -
Best forAffordable operational workflow apps
- Better than REI3:
- Editor score 8.2 vs 3.0
A low-cost no-code platform for operational apps, workflows, and field data.
- Built-in database
- Mobile publishing
- User authentication
8.2/10★★★★☆Visit Clappia -
Best forSelf-hosted web applications
- Better than REI3:
- Editor score 8.1 vs 3.0
A flexible web app builder for teams that need native backend tools and deployment control.
- Built-in database
- Mobile publishing
- User authentication
8.1/10★★★★☆Visit WeWeb -
Best forCode-exporting React Native apps
- Better than REI3:
- Editor score 8.0 vs 3.0
A strong choice for building and exporting React Native apps across web, iOS, and Android.
8.0/10★★★★☆Visit Draftbit
REI3 Alternatives: Common Questions
What is the best alternative to REI3?
Bubble: #1 in our No-Code App Builders ranking, with an editor score of 9.4 out of 10. A broad no-code builder for full-stack web apps and native mobile publishing.
Is there a free alternative to REI3?
Yes. Bubble, Zoho Creator, OutSystems, Mendix and Google AppSheet have a free plan or a free tier (13 of the 15 alternatives on this page).
What is the cheapest paid alternative to REI3?
Of the alternatives here that publish a price, Google AppSheet starts lowest, at $5/user/mo.
Why do people look for REI3 alternatives?
Published positioning centers on browser-based applications; No AI features are included; Professional pricing uses several user-count bands.
Which REI3 alternative has the most app limit?
ServiceNow App Engine, with 3 apps.
How do I switch from REI3?
Export your data from REI3 (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel REI3.
How to Switch from REI3
- Export your data from REI3 (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel REI3.
REI3 vs Each Alternative
| # | Tool | Free plan | Paid from | App types | Mobile publishing | Built-in database | User authentication | Score |
|---|---|---|---|---|---|---|---|---|
| 78 | REI3 | Yes | €4.50/user/mo | Web | Yes | Yes | 3.0 | |
| 1 | Bubble | Yes | $59/mo | Both | Yes | Yes | Yes | 9.4 |
| 2 | Zoho Creator | Yes | Both | Yes | Yes | Yes | 9.3 | |
| 3 | OutSystems | Yes | Both | Yes | Yes | Yes | 9.2 | |
| 4 | Mendix | Yes | Both | Yes | Yes | Yes | 9.1 | |
| 5 | Google AppSheet | Yes | $5/user/mo | Both | Yes | Yes | Yes | 9.0 |
| 6 | ServiceNow App Engine | Yes | Both | Yes | Yes | Yes | 8.9 | |
| 7 | Oracle APEX | Yes | 8.8 | |||||
| 8 | Claris FileMaker | No | 8.7 | |||||
| 9 | Retool | Yes | $10/mo | 8.6 | ||||
| 10 | Glide | Yes | $25/mo | Both | Yes | Yes | Yes | 8.5 |
| 11 | FlutterFlow | Yes | $39/user/mo | Both | Yes | Yes | 8.4 | |
| 12 | Quickbase | No | $35/user/mo | Both | Yes | Yes | 8.3 | |
| 13 | Clappia | Yes | $6/user/mo | Both | Yes | Yes | Yes | 8.2 |
| 14 | WeWeb | Yes | $13/mo | Web | Yes | Yes | Yes | 8.1 |
| 15 | Draftbit | Yes | $12/mo | 8.0 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update