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Deep Code vs Principle

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Deep Code

Developer Tools

Desktop AI coding assistant that runs on DeepSeek models

From
Free
Free plan
Yes
Visit Deep CodeFull review
P

Principle

Design

Animate your ideas, design better apps

From
$129/one-time
Free plan
No
Visit PrincipleFull review

The short version

  • Deep Code has a free plan, then $5/mo; Principle starts at $129 one-off.
  • Only Deep Code lists DeepSeek-backed agent; only Principle lists timeline-based animation.
  • Where Deep Code falls short: the Pro tier caps included usage at 100 Pro Credits per day rather than offering an unmetered plan.
  • Where Principle falls short: macOS only with no Windows or Linux editor available.
  • Prices and features on this page were last checked on 15 September 2026.

Where they differ

Only the attributes on which Deep Code and Principle actually diverge.

Attributes where Deep Code and Principle differ
AttributeDeep CodePrinciple
Starting priceFree$129/one-time
Free tierYesNo
PlatformsWindows, macOS, LinuxmacOS
CategoryDeveloper ToolsDesign

Not yet recorded: pricing model for Principle, founded for Deep Code.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Deep Code

  • DeepSeek-backed agent
  • Session management
  • File explorer
  • Snippets panel
  • Voice input
  • Bring your own key

Only in Principle

  • Timeline-based animation
  • Interactive prototypes
  • Touch gestures
  • Component reuse
  • Video export
  • Sketch import
  • Figma import
  • Driver animations

What people use each for

The jobs each tool is most often brought in to do.

Deep Code

  • AI-assisted coding on a budgetnot Principle
  • Debugging and bug fixingnot Principle
  • Refactoring existing codenot Principle
  • Reusing prompt templates across projectsnot Principle
  • Using an existing DeepSeek API key without proxy setupnot Principle

Principle

  • Mobile app prototypesnot Deep Code
  • Micro-interactionsnot Deep Code
  • Animation designnot Deep Code
  • User flow designnot Deep Code
  • Gesture-based interfacesnot Deep Code

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Deep Code

  • Model choice is narrow. Bring your own key covers DeepSeek-V4-Pro and Flash plus the GLM and Mimo coding plans, and no frontier model from OpenAI, Anthropic or Google
  • The Pro tier caps included usage at 100 Pro Credits per day rather than offering an unmetered plan
  • Bring your own key is a paid feature, so the free tier cannot be pointed at your own DeepSeek account
  • Desktop only, with no editor extension, web version or team seat management as of September 2026
  • A small, young vendor with no independent review coverage yet, so there is nothing outside the vendor's own site to corroborate the cost claim

Principle

  • macOS only with no Windows or Linux editor available
  • No vector morphing capability for complex shape transformations
  • Limited asset creation tools; cannot create vectors or shapes directly within Principle
  • Sketch import flattens certain properties including paths, fills, borders, masks, blur effects, and text layers
  • Limited variable support, logical loops, and data input capabilities compared to tools like ProtoPie or Origami

Pricing, plan by plan

Deep Code

Free
  • FreeFree
    • Session management
    • File explorer and snippets panel
    • Voice input
  • Pro$5/mo
    • All Free features
    • 100 daily Pro Credits
    • BYOK across DeepSeek-V4-Pro, DeepSeek-V4-Flash, GLM Coding Plan and Mimo Coding Plan

Principle

$129/one-time
  • License$129 one-off
    • One year of upgrades
    • Full access to all features
  • Upgrade License$99/yr
    • Annual renewal for ongoing upgrades

Which should you pick?

Choose Deep Code if

  • You need deepseek-backed agent.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want session management.
Deep Code review

Choose Principle if

  • You need timeline-based animation.
  • You work on macOS.
  • You also want interactive prototypes.
Principle review

Questions people ask

Is Deep Code or Principle better?
Neither clearly leads. Deep Code starts at Free and Principle at $129/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deep Code or Principle?
Deep Code has a free tier; the other does not. Paid plans start at Free for Deep Code and $129/one-time for Principle.
Does Deep Code or Principle run on more platforms?
Deep Code runs on Windows, macOS, Linux. Principle runs on macOS.
Can I use Deep Code for free?
Yes. Deep Code has a free tier, so you can try it without paying. Principle starts at $129/one-time.
What is Deep Code best used for?
Deep Code is most often used for ai-assisted coding on a budget, debugging and bug fixing, refactoring existing code, reusing prompt templates across projects. Of those, ai-assisted coding on a budget and debugging and bug fixing are not what Principle is typically brought in for.
What can Deep Code do that Principle cannot?
Deep Code covers DeepSeek-backed agent, Session management, File explorer, Snippets panel. Principle covers Timeline-based animation, Interactive prototypes, Touch gestures, Component reuse.

Answered from the vendors’ own pages

Deep Code: Which models does Deep Code run on?

DeepSeek V4 family models, with the vendor's headline built around DeepSeek V4.1. The free tier's included credits run on DeepSeek-V4-Flash. Paid users bringing their own key can also use DeepSeek-V4-Pro, the GLM Coding Plan and the Mimo Coding Plan.

Source
Principle: Does Principle run on Windows or Linux?

No. Principle is macOS only and runs on Intel and Apple Silicon Macs. There is no Windows or Linux editor available; however, prototypes can be shared and viewed on any platform via web link.

Source
Deep Code: What does Deep Code cost?

There are two tiers. Free is $0 per month and includes session management, the file explorer, snippets, voice input and weekly free credits on DeepSeek-V4-Flash. Pro is $5 per month and adds 100 daily Pro Credits plus bring-your-own-key support for multiple models.

Source
Principle: What is the cost of Principle?

Principle costs $129 for a one-time purchase with 1 year of upgrades included. After 1 year, upgrade licenses cost $99/year. A 14-day free trial is available with all features included.

Source
Deep Code: Do I need my own API key to use it?

No. The free tier includes weekly credits and needs no credit card, so the app works without a key. Bring your own key is available on the $5 per month Pro tier and covers DeepSeek-V4-Pro, DeepSeek-V4-Flash, the GLM Coding Plan and the Mimo Coding Plan.

Source
Principle: Can I import designs from Figma or Sketch into Principle?

Yes. Principle supports importing designs from Figma and Sketch with intelligent merging of re-imported files. Some Sketch properties such as paths, fills, borders, blur effects, masks, and text layers are flattened upon import.

Source
Deep Code: Which operating systems does it run on?

Windows, macOS and Linux. It is a desktop application rather than an editor extension, so it runs alongside whatever editor you already use.

Source
Principle: How do I share Principle prototypes with others?

Prototypes can be shared via web link with one click (File > Export > Share to Web). Recipients can view and interact with prototypes in any browser on any platform: Windows, macOS, Linux, Android, or iOS. No installation required.

Source
Deep Code: Is the 95 percent cheaper claim independently verified?

No. It is the vendor's own figure, based on DeepSeek token pricing against frontier model pricing. Actual savings depend on which model you compare against and how much of your usage falls inside the included credits.

Source
Principle: Can I create vector shapes and morphing animations in Principle?

Principle does not support vector morphing, where vector objects transform into other vector shapes. It also has limited asset creation capabilities and editing is restricted to basic operations like scale and rotate.

Source
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