Interface Design Tools
Alternatives to Principle
The tools Specifiction weighs against Principle, from its list of interface design tools, each with its plans, platforms and spec score.
- 01 Figma
Figma suits product teams that need shared design and prototyping alongside developer handoff, whiteboarding, or presentations.
From $3/mo Free plan Web · Windows · macOS · iOS9.4 Visit Specs - 02
Justinmind Justinmind suits design teams, business analysts and developers who need to prototype web or mobile interfaces and share UI assets for handoff.
From $19/mo Free plan Web · Windows · macOS · iOS9.3 Visit Specs - 03
Mockplus From $2.98/mo Free plan Web · Windows · macOS · iOS9.2 Visit Specs - 04 Marvel
Marvel suits individuals or teams creating and sharing prototypes and preparing design handoff materials.
From $12/mo Free plan Web · iOS · Android · API9.1 Visit Specs - 05
Moqups It suits individuals, solo professionals and teams creating interface designs, diagrams or interactive prototypes in a browser.
From $11/mo Free plan Web · API · Browser extension8.9 Visit Specs - 06
Axure RP From $29/mo Free trial macOS8.8 Visit Specs - 07
Fluid UI It suits designers, developers, product managers, entrepreneurs, and others who need to communicate app ideas through interactive mockups.
From $8.25/mo Free plan Web · Windows · macOS · Linux8.8 Visit Specs - 08
ProtoPie ProtoPie suits designers and teams creating interactive prototypes with device-specific inputs or synchronized experiences across devices.
From $25/mo Free plan Web · Windows · macOS · iOS8.7 Visit Specs - 09
UXPin UXPin suits individuals and small teams needing interactive prototypes, and growing product teams that need shared access and role controls.
From $29/mo Free plan Web · Windows · macOS · iOS8.7 Visit Specs - 10
Flinto From $20/mo Free trial Web · macOS · iOS · Android8.5 Visit Specs - 11
Penpot Penpot suits design and development teams that want collaborative design, prototyping and code inspection.
From $7/mo Free plan Web · API · Self-hosted8.3 Visit Specs - 12
Proto.io Proto.io suits people or teams creating and sharing interactive prototypes for iOS, Android, and web without coding.
From $29/mo Free plan Web · iOS · Android8.3 Visit Specs - 13
MockFlow MockFlow suits individuals or teams planning visual concepts and wireframes, from personal and nonprofit users to businesses seeking collaboration and integrations.
Free plan Web · Windows · macOS · Browser extension8.2 Visit Specs - 14
Sketch From $12/mo Free trial Web · macOS · iOS8.2 Visit Specs - 15
Visily Visily suits founders, product managers, analysts, developers, and teams needing browser-based collaborative UI design.
From $14/mo Free plan Web · Browser extension8.1 Visit Specs - 16
NinjaMock From $85/mo Free plan Web8.0 Visit Specs - 17
Pencil Project Pencil suits people making interface mockups or diagrams who want a free desktop tool across Linux, macOS, or Windows.
Free plan Windows · macOS · Linux7.8 Visit Specs - 18
Origami Studio Origami Studio suits designers creating interactive interface prototypes with visual layouts, imported design layers, and connected behaviors.
Free plan macOS · iOS · Android7.7 Visit Specs - 19 WireframeSketcher From $89/mo Free trial Windows · macOS · Linux7.7 Visit Specs
- 20
Balsamiq Wireframes From $16/mo Web · Windows · macOS7.6 Visit Specs - 21
Quant-UX Free plan Web · Self-hosted7.6 Visit Specs - 22 Wireframe.cc From $1/mo Free plan Web7.5 Visit Specs
- 23
Uizard Uizard suits solo users through enterprise teams that need browser-based prototyping, collaboration, design systems, and developer handoff.
From $3.25/mo Free plan Web · Browser extension7.3 Visit Specs - 24
Wireflow Wireflow suits teams designing user flows collaboratively in a browser.
Free plan Web · Self-hosted7.2 Visit Specs - 25 iRise Web5.8 Visit Specs