ERBuilder vs Whiteboard by Athena AI vs Napkin vs Leanify

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
ERBuilder
vs
Competitor 1
WBWhiteboard by Athena AI
Competitor 2
Napkin
Competitor 3
LLeanify
Compare
4 tools · best value per row highlighted
Your tool ERBuilder
soft-builder.com
ERBuilder is a data modeling application from Softbuilder, and its generative AI feature turns plain-language descriptions into entity-relationship diagrams.
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Competitor WBWhiteboard by Athena AI
athenaboard.ai
Instant Visual Creation Describe your concept, and watch as AI instantly generates flowcharts, wireframes, mind maps, or UI prototypes—ready in seconds. Perfect for entrepreneurs, digital teams, and
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Competitor Napkin
napkin.ai
Napkin works directly from your text: paste or import it, click generate, and it proposes visuals that match the ideas in the writing.
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Competitor LLeanify
leanify.lovable.app
RapidMap turns workshop recordings into process diagrams and PowerPoint decks
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Traffic estimated monthly website traffic
Monthly visits
5.4Kvisits/mo
1.1Kvisits/mo
1.3Mvisits/mo
—
MoM change
▼ 6.3%
▲ 1,238.1%
▼ 8.5%
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6-month growth
-22.4%
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-46.4%
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Global rank web
#3,419,998
#12,935,820
#36,124
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Avg. last 3 months
5.9K
402
1.4M
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Bounce rate lower is better
39%
38%
41%
0%
Pages / visit
1.9
1.1
3.9
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Visit duration
15s
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2m 36s
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Traffic sources
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● Direct 86% · ● Referral 9%
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ERBuilderWhiteboard by Athena AINapkinLeanify
0831.2K1.7M2.5M3.3MERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3M101001K10K100K1M10MERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free Trial
Freemium
Freemium
Freemium
Starting price
$139per month
$5.99per month · free tier available
$9per month · free tier available
£39per month
Free tier
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Free trial
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API access
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Plans
Professional (Subscription) $139/yrEnterprise (Subscription) $399/yrProfessional (Lifetime) $279Enterprise (Lifetime) $799
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Starter £39/moProfessional £99/moFirm £299/moEnterprise Custom
Capabilities input → output
Input
Text
Text
DataText
AudioDocumentsTextVideo
Output
Data
Images
DataImagesSlides
ImagesSlides
Skill level
Intermediate
Beginner-friendly
Beginner-friendly
Intermediate
Categories
Productivity & OfficeAI Diagram Generator
Design & CreativeProductivity & OfficeAI Diagram GeneratorAI Mind Mapping+1 more
Design & CreativeProductivity & OfficeAI ChartingAI Diagram Generator+3 more
Productivity & OfficeAI Diagram Generator
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
9
7
8
Diagrams
Diagram assistance
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Flowcharts
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Mind maps
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Business process analysis
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Data modeling
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Infographics
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Process maps
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Charts
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Data charts
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Database design
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Process map optimization
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Transcription
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Wireframes
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Collaborative design
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Google meet assistance
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Meeting transcription
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PowerPoint presentations
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Presentations
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Prototyping
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Schema generation
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UX design
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.