RE-READ WEEKLY

SWITCHING FROM

pen.dev

3 products in design tools sit near pen.dev. Each listing is written from the product’s own pages and re-read weekly, and each one below carries how far it sits from pen.dev rather than a rank.

Open the pen.dev listingAsk which one fits you

THE BASELINE · READ TODAY

PRICING

Freemium

CLAIMS VERIFIED

0

VOUCHES

0

LAST SHIPPED

never

An agentic canvas for building bold software

THE SPREAD

The field, in three measurements.

Where each one sits against pen.dev, what it costs, and how much of what it says we have been able to check. Three separate measurements — none of them added together into a score.

FREE
OPEN SOURCE
FREEMIUM
PAID
NOT STATED
0.9
0.8
0.7
0.6
PEpen.devBASELINEMowgli0.82 alikeOpenDesign0.81 alikeTessella editor0.70 alike
← DESCRIBES ITSELF MOST LIKE PEN.DEVLEAST ALIKE →
Point at one for its numbers. Click to open it.

LEFT TO RIGHT

How alike the wording is

Cosine distance between the two descriptions. It says two products describe themselves the same way. It does not say one replaces the other.

FRONT TO BACK

What it costs

The pricing model off the product’s own pages. Free at the front, paid at the back. No number, because most pricing pages give none.

PILLAR HEIGHT

What stood up

Claims we read off the site and checked. A flat pin is a product we have not been able to verify anything about yet.

EVERY ALTERNATIVE

3 products, closest wording first.

Ordered by how similarly each one describes itself to pen.dev. That is a fact about wording, not a verdict about fit.

  1. MowgliAI design canvas for mobile, web and desktop apps0.82Freemiumnothing verified14d ago
  2. OpenDesignCollaborative design agent workspace for prototypes0.81Freemiumnothing verified5d ago
  3. Tessella editorBrowser-based tessellation design tool, mobile first0.70Freenothing verified23d ago

SIDE BY SIDE

pen.dev against the closest three.

Every cell read off the product’s own pages. Where we hold nothing, the cell says so rather than guessing.

pen.dev and the 3 products whose descriptions sit closest to it, across everything measured for all of them.
MEASUREDpen.devWHAT YOU HAVE NOWMowgli0.82 ALIKEOpenDesign0.81 ALIKETessella editor0.70 ALIKE
Pricing modelPRICING PAGEFreemiumFreemiumFreemiumFree
Claims verifiedOUR READINGS0000
Could not checkOUR READINGS0000
Last shippedOUR READINGSnever14d ago5d ago23d ago
Last readOUR READINGStodaytoday5d ago2d ago
Crossed λOUR READINGSnot yetnot yetnot yetnot yet
Written fromLISTINGThe siteThe siteThe siteThe site

WHAT THE FIELD COSTS · 3 PRODUCTS

Free1
Open source0
Freemium2
Paid0
Not stated0

WHAT WE HOLD ON THEM · 3 PRODUCTS

Something verified0
Crossed λ0
Shipped in the last 30 days3
Self-reported, never read0

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