Softwr

Technology · head to head

Auth0 vs RAD Studio

Auth0 logo

Auth0

Technology

Secure access for everyone

From
Free
Free plan
Yes
Full reviewWebsite
RAD Studio logo

RAD Studio

Developer Tools

Cross-platform native app development with Delphi and C++Builder

From
$2000/perpetual
Free plan
No
Full reviewWebsite

The short version

  • Only Auth0 has a free tier, so it costs nothing to try first.
  • Each has a real cost: Auth0 free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that; RAD Studio professional edition costs $2,000 for the perpetual license plus $599 for year one maintenance, totaling $2,599 before tax
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Auth0 and RAD Studio actually diverge.

Attributes where Auth0 and RAD Studio differ
AttributeAuth0RAD Studio
Starting priceFree$2000/perpetual
Pricing modelUnknownone-time
Free tierYesNo
PlatformsWeb, iOS, AndroidWeb
CategoryTechnologyDeveloper Tools
Founded2013Unknown

Identical on both: user rating (Not yet rated).

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 Auth0

  • Universal login
  • Social login
  • Multi-factor authentication
  • Passwordless
  • User management
  • Anomaly detection
  • Extensibility
  • Machine to machine

Only in RAD Studio

Nothing recorded that Auth0 does not also cover.

What people use each for

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

Auth0

  • B2C authenticationnot RAD Studio
  • B2B authenticationnot RAD Studio
  • B2E authenticationnot RAD Studio
  • API securitynot RAD Studio
  • Mobile app securitynot RAD Studio

RAD Studio

  • Building Windows desktop applications with VCL componentsnot Auth0
  • Creating iOS and Android apps from shared Delphi codebasenot Auth0
  • Connecting to Oracle databases through FireDAC connectivitynot Auth0
  • Building REST web services that run on Linux serversnot Auth0

Where each one falls short

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

Auth0

  • Free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
  • Advanced features like MFA and RBAC only available on paid Essentials tier and above
  • Ownership by Okta introduces risk that independent product roadmap may change

RAD Studio

  • Professional edition costs $2,000 for the perpetual license plus $599 for year one maintenance, totaling $2,599 before tax
  • Enterprise edition steps up to $3,400 license plus $1,199 maintenance, and Architect edition to $4,416 license plus $2,183 maintenance
  • The perpetual license only entitles the buyer to updates for one year; continued access to new updates and upgrades requires an annually renewable Update Subscription

Pricing, plan by plan

Auth0

Free
  • FreeFree
    • Up to 25,000 monthly active users
    • Basic authentication
    • Email/password login
  • Essentials (B2C)$35/month
    • Unlimited MAUs beyond free tier
    • Multi-Factor Authentication
    • Role-Based Access Control
  • Professional (B2C)$240/month
    • All Essentials features
    • Advanced security
    • Custom branding

RAD Studio

$2000/perpetual
  • Professional Edition$2000/perpetual
    • Perpetual License
    • First year maintenance $599
    • Total $2,599 + Tax
  • Enterprise Edition$3400/perpetual
    • Perpetual License
    • First year maintenance $1,199
    • Total $4,599 + Tax
  • Architect Edition$4416/perpetual
    • Perpetual License
    • First year maintenance $2,183
    • Total $6,599 + Tax

Which should you pick?

Choose Auth0 if

  • You need universal login.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want social login.
Auth0 review

Choose RAD Studio if

Nothing in the data separates RAD Studio from Auth0 on the points above - pick on price and on how each one feels to use.

RAD Studio review

Questions people ask

Is Auth0 or RAD Studio better?
Neither clearly leads. Auth0 starts at Free and RAD Studio at $2000/perpetual, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Auth0 or RAD Studio?
Auth0 has a free tier; the other does not. Paid plans start at Free for Auth0 and $2000/perpetual for RAD Studio.
Does Auth0 or RAD Studio run on more platforms?
Auth0 runs on Web, iOS, Android. RAD Studio runs on Web.
Can I use Auth0 for free?
Yes. Auth0 has a free tier, so you can try it without paying. RAD Studio starts at $2000/perpetual.
What is Auth0 best used for?
Auth0 is most often used for b2c authentication, b2b authentication, b2e authentication, api security. Of those, b2c authentication and b2b authentication are not what RAD Studio is typically brought in for.
What can Auth0 do that RAD Studio cannot?
Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless.

Answered from the vendors’ own pages

Auth0: How much does Auth0 cost?

Auth0 has a Free tier for up to 25,000 monthly active users (MAUs). Paid plans start at $35/month (Essentials B2C) and scale to $240/month (Professional B2C) and higher for Enterprise. Pricing scales with MAU usage.

Source
RAD Studio: How much does RAD Studio cost?

RAD Studio uses perpetual licensing: Professional Edition $2,000 perpetual license + $599 first year maintenance ($2,599 total + tax). Enterprise Edition $3,400 license + $1,199 maintenance ($4,599 total + tax). Architect Edition $4,416 license + $2,183 maintenance ($6,599 total + tax).

Source
Auth0: Does Auth0 include Multi-Factor Authentication?

No. MFA, RBAC (Role-Based Access Control), and premium support are not included in the free tier and require upgrading to paid Essentials plans or higher.

Source
RAD Studio: What is the difference between RAD Studio editions?

Professional Edition ($2,599 total + tax) targets individual developers. Enterprise Edition ($4,599 total + tax) adds multi-tier app capabilities. Architect Edition ($6,599 total + tax) includes advanced database and cloud features. All three include perpetual licenses.

Source
Auth0: Is Auth0 independent or part of a larger company?

Auth0 was acquired by Okta in May 2021 for $6.5 billion. It now operates as a subsidiary business unit within Okta, but maintains its own brand and operations.

Source
RAD Studio: Does RAD Studio offer Kai AI integration and discounts?

Yes, adding Kai AI to any edition provides discounts: 25% off Professional ($2,136 + tax), 30% off Enterprise ($3,394 + tax), and 40% off Architect ($4,109 + tax). This promotion is active through August 31, 2026.

Source
Auth0: Who should use Auth0 vs Okta?

Auth0 is developer-focused and serves customer identity use cases (B2C). Okta serves workforce identity (B2B) and has broader enterprise features. Auth0 now serves both markets post-acquisition but maintains its developer-friendly positioning.

Source
Share

Related pages

More on Auth0

More on RAD Studio

Keep looking

Other head to heads