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No-Code · head to head

OutSystems vs Retool

OutSystems logo

OutSystems

No-Code

Enterprise low-code platform priced by application complexity units, not just users

From
On request
Free plan
No
Full reviewWebsite
Retool logo

Retool

Surveys

The rapid internal tool platform

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Retool has a free tier, so it costs nothing to try first.
  • Each has a real cost: OutSystems application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.; Retool builders and internal users are billed as separate seat types, so the true cost depends on the mix rather than the headcount
  • They diverge on capability: OutSystems covers Visual application modelling, Retool covers Drag-and-drop builder.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which OutSystems and Retool actually diverge.

Attributes where OutSystems and Retool differ
AttributeOutSystemsRetool
Starting priceOn requestFree
Pricing modelApplication Object consumption plus internal and external user packssubscription
Free tierNoYes
PlatformsWeb, iOS, AndroidWeb, Self-hosted
CategoryNo-CodeSurveys
FoundedUnknown2017

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 OutSystems

  • Visual application modelling
  • Generated deployable code
  • One-click deployment
  • AI-assisted development
  • Application Object governance
  • Prebuilt integrations

Only in Retool

  • Drag-and-drop builder
  • Database integration
  • REST API
  • Real-time data binding
  • Workflow automation
  • Custom code
  • Version control
  • 200+ integrations

What people use each for

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

OutSystems

  • An enterprise replacing custom .NET or Java application development with a governed low-code platform at scalenot Retool
  • A company building customer-facing portals where the external-user pricing tier (packs of 10,000) is materially cheaper than licensing customers as internal usersnot Retool
  • An IT department that wants generated, inspectable code rather than a proprietary black-box runtimenot Retool
  • An organisation with a large existing application portfolio needing centralised governance across many apps built by different teamsnot Retool

Retool

  • Building internal admin tools and dashboards over existing databases and APIsnot OutSystems
  • Giving operations teams a UI for data they would otherwise query by handnot OutSystems

Where each one falls short

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

OutSystems

  • Application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.
  • Internal users are sold in packs of 100 and external users in packs of 10,000, so a company just over a pack boundary in either category pays for a full additional pack rather than a handful of extra seats.
  • Entry-level ODC pricing starts around 36,300 US dollars a year before any AO overage or extra user packs, which puts it out of reach for smaller teams evaluating low-code options.
  • Cloud infrastructure and hosting costs are frequently separate from the platform licence, so the all-in bill is higher than the headline subscription figure suggests.
  • Migrating a large application portfolio off OutSystems once built is difficult, since the generated code and platform-specific patterns are not designed for a clean export to standard frameworks.

Retool

  • Builders and internal users are billed as separate seat types, so the true cost depends on the mix rather than the headcount
  • The free plan is capped at 5 users, 500 workflow runs a month and 5 GB of database capacity
  • Audit logging, permission controls, portals and custom branding all require the Business plan at $50 per builder per month billed annually
  • External user access is Business only, and is charged in bands above 50 users
  • Self hosted deployments mirror the cloud tiers but need Enterprise for unlimited users and SSO

Pricing, plan by plan

OutSystems

On request
  • ODC Entry$undefined/year
    • Entry-level Application Object allowance included
    • Internal users sold in packs of 100
    • External users sold in packs of 10,000
  • ODC Enterprise$undefined/year
    • Custom AO, user pack and environment volumes
    • Negotiated multi-year enterprise agreements
    • Premium support and dedicated infrastructure options

Retool

Free
  • FreeFree
    • Unlimited web and mobile apps
    • 500 workflow runs monthly
    • 5GB database capacity
  • Team$10/month
    • Builders: $10/month (annual) or $12/month (monthly)
    • Internal users: $5/month (annual) or $7/month (monthly)
    • 5,000 workflow runs monthly
  • Business$50/month
    • Builders: $50/month (annual) or $65/month (monthly)
    • Internal users: $15/month (annual) or $18/month (monthly)
    • Audit logging
  • Enterprise$null/contact sales
    • Custom pricing
    • SSO integration
    • Unlimited users

Which should you pick?

Choose OutSystems if

  • You need visual application modelling.
  • You work on Web, iOS, Android.
  • You also want generated deployable code.
OutSystems review

Choose Retool if

  • You need drag-and-drop builder.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want database integration.
Retool review

Questions people ask

Is OutSystems or Retool better?
Neither clearly leads. OutSystems starts at On request and Retool at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OutSystems or Retool?
Retool has a free tier; the other does not. Paid plans start at On request for OutSystems and Free for Retool.
Does OutSystems or Retool run on more platforms?
OutSystems runs on Web, iOS, Android. Retool runs on Web, Self-hosted.
Can I use Retool for free?
Yes. Retool has a free tier, so you can try it without paying. OutSystems starts at On request.
What is OutSystems best used for?
OutSystems is most often used for an enterprise replacing custom .net or java application development with a governed low-code platform at scale, a company building customer-facing portals where the external-user pricing tier (packs of 10,000) is materially cheaper than licensing customers as internal users, an it department that wants generated, inspectable code rather than a proprietary black-box runtime, an organisation with a large existing application portfolio needing centralised governance across many apps built by different teams. Of those, an enterprise replacing custom .net or java application development with a governed low-code platform at scale and a company building customer-facing portals where the external-user pricing tier (packs of 10,000) is materially cheaper than licensing customers as internal users are not what Retool is typically brought in for.
What can OutSystems do that Retool cannot?
OutSystems covers Visual application modelling, Generated deployable code, One-click deployment, AI-assisted development. Retool covers Drag-and-drop builder, Database integration, REST API, Real-time data binding.

Answered from the vendors’ own pages

OutSystems: What is an Application Object?

A unit OutSystems uses to measure application complexity, counting elements such as screens, database tables and exposed APIs; more AOs mean a bigger licence requirement.

Retool: How much does Retool cost?

Retool offers a free tier. Paid cloud plans start at $10/month (Team - builders) or $5/month (Team - internal users), $50/month (Business - builders) or $15/month (Business - internal users). Enterprise pricing is custom. Annual billing provides 20% savings.

Source
OutSystems: Is there a free tier?

OutSystems has offered free or trial tiers historically for evaluation, but production use at any scale runs on paid ODC plans.

Retool: What is the difference between builders and internal users?

Builders are users who create applications in Retool, while internal users are those who only access and use the applications. Internal users cost significantly less than builders on all paid tiers.

Source
OutSystems: How does external user pricing work?

External users, typically customers or partners, are sold in packs of 10,000 at roughly a hundredth of the per-seat cost of internal (employee) user packs.

Retool: Can I self-host Retool?

Yes, Free, Team, and Business tiers support self-hosting with comparable features to cloud versions. Enterprise is required for unlimited users, SSO, and advanced self-host features.

Source
Retool: What are AI credits and how do they work?

AI credits are used for app building and AI actions. Free tier includes 250 monthly credits, Team includes 1,000, and Business includes 3,000. Credits renew monthly without carryover and are pooled at the organization level.

Source
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