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No-Code · head to head

Appian vs Momen

Appian logo

Appian

No-Code

Low-code process automation platform priced per user, per app, per month, with tier limits on data and AI volume

From
On request
Rated
-
Full reviewWebsite
Momen logo

Momen

No-Code

Full-stack web app builder with its own Postgres database and a GraphQL API over your tables

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Momen has a free tier, so it costs nothing to try first.
  • Each has a real cost: Appian cost multiplies on three axes at once, users, apps and month, so deploying several apps to overlapping user populations produces a bill that is not obvious from any single per-user headline figure.; Momen there is no source code export and no self-hosting, so if the vendor changes direction or pricing, migration means rebuilding the application from scratch against exported data.
  • They diverge on capability: Appian covers Low-code process designer, Momen covers Built-in Postgres database.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Appian and Momen actually diverge.

Attributes where Appian and Momen differ
AttributeAppianMomen
Starting priceOn requestFree
Pricing modelPer user, per app, per month, escalating across Standard, Advanced and Premium tiersquote
Free tierNoYes
PlatformsWeb, iOS, AndroidWeb

Identical on both: user rating (Not yet rated), category (No-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 Appian

  • Low-code process designer
  • Robotic process automation
  • AI process automation
  • Data fabric
  • Portals
  • Process mining

Only in Momen

  • Built-in Postgres database
  • GraphQL API over your data
  • Row-level access rules
  • Authentication
  • Payments and subscriptions
  • Server-side actions
  • Responsive web output
  • Hosting and custom domains

What people use each for

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

Appian

  • A regulated enterprise (financial services, government, insurance) automating case management processes that need a full audit trailnot Momen
  • A company deploying RPA bots alongside low-code apps and wanting both in one licensed platformnot Momen
  • An organisation whose process data volume is large enough that the Standard tier's 4 million row cap is a real constraint worth planning fornot Momen
  • A business wanting embedded AI actions inside workflow steps rather than bolted on separatelynot Momen

Momen

  • Building a two-sided marketplace where the data model and permissions matter more than the visual designnot Appian
  • Shipping a subscription product with billing included rather than wiring payments into a separate buildernot Appian
  • Teams that want database, authentication, API and hosting on one bill instead of four vendorsnot Appian
  • Founders who can think in tables and relations but cannot write application codenot Appian

Where each one falls short

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

Appian

  • Cost multiplies on three axes at once, users, apps and month, so deploying several apps to overlapping user populations produces a bill that is not obvious from any single per-user headline figure.
  • Each tier has hard caps on data rows, RPA bots and monthly AI actions, so a workload can force a tier upgrade purely from data or automation volume growth, independent of user count.
  • No dollar figures are published anywhere on Appian's own site; every real price point comes from a sales negotiation, making early-stage budget comparison against OutSystems or Mendix difficult.
  • The platform's strength in process orchestration and case management is less useful for teams that mainly want simple departmental data apps, where the pricing and capability are overkill.
  • Exceeding the 200,000 (Standard) or 1,000,000 (Premium) monthly AI action allowance requires a renegotiation, so AI-heavy workflows carry real usage risk beyond the base subscription.

Momen

  • There is no source code export and no self-hosting, so if the vendor changes direction or pricing, migration means rebuilding the application from scratch against exported data.
  • It is a young platform with a small team, so the template library, the pool of community answers and the third-party integration marketplace are all thin next to Bubble or WeWeb.
  • The learning curve is real, because you are exposed to schemas, relations, queries and access rules, which stops it serving the audience that spreadsheet-backed builders serve.
  • Mobile applications are web output rather than native builds, so anything needing real device capability or an app store listing is a wrapper rather than a native app.
  • Support and documentation come from the vendor rather than a large user base, so an unusual problem escalates to the same small team everyone else is waiting on.

Pricing, plan by plan

Appian

On request
  • Standard$undefined/month
    • Per user, per app, per month
    • 4 million data row capacity
    • 5 RPA bots included
  • Advanced$undefined/month
    • Per user, per app, per month
    • Higher data row capacity than Standard
    • More RPA bots than Standard
  • Premium$undefined/month
    • Per user, per app, per month
    • 50 million data row capacity
    • Unlimited RPA bots

Momen

Free
  • Momen$undefined/month
    • Free tier for building and testing
    • Paid tiers add custom domains, higher resource limits and removal of platform branding
    • Priced by plan tier and resource usage rather than per end user

Which should you pick?

Choose Appian if

  • You need low-code process designer.
  • You work on Web, iOS, Android.
  • You also want robotic process automation.
Appian review

Choose Momen if

  • You need built-in postgres database.
  • You want to start without paying.
  • You also want graphql api over your data.
Momen review

Questions people ask

Is Appian or Momen better?
Neither clearly leads. Appian starts at On request and Momen at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Appian or Momen?
Momen has a free tier; the other does not. Paid plans start at On request for Appian and Free for Momen.
Does Appian or Momen run on more platforms?
Appian runs on Web, iOS, Android. Momen runs on Web.
Can I use Momen for free?
Yes. Momen has a free tier, so you can try it without paying. Appian starts at On request.
What is Appian best used for?
Appian is most often used for a regulated enterprise (financial services, government, insurance) automating case management processes that need a full audit trail, a company deploying rpa bots alongside low-code apps and wanting both in one licensed platform, an organisation whose process data volume is large enough that the standard tier's 4 million row cap is a real constraint worth planning for, a business wanting embedded ai actions inside workflow steps rather than bolted on separately. Of those, a regulated enterprise (financial services, government, insurance) automating case management processes that need a full audit trail and a company deploying rpa bots alongside low-code apps and wanting both in one licensed platform are not what Momen is typically brought in for.
What can Appian do that Momen cannot?
Appian covers Low-code process designer, Robotic process automation, AI process automation, Data fabric. Momen covers Built-in Postgres database, GraphQL API over your data, Row-level access rules, Authentication.

Answered from the vendors’ own pages

Appian: Does Appian publish its prices?

No dollar figures are public. It discloses the pricing mechanism, per user per app per month across three tiers, but actual rates are negotiated.

Momen: Do I need a separate backend?

No. The database, authentication, API and payments are part of the platform, which is the main difference from builders that expect you to bring Supabase or Airtable.

Appian: What happens if we exceed the data row cap?

Exceeding a tier's data row, RPA bot or AI action cap requires upgrading to the next tier or negotiating an add-on, regardless of user count.

Momen: Can I get my data out?

Yes. The Postgres data exports and is reachable over a GraphQL API. The application itself is not exportable.

Appian: Is Appian a general app builder like OutSystems?

It can build general apps but is oriented more toward process automation and case management, with RPA and AI embedded as core features.

Momen: Can I self-host it?

No. It runs on vendor infrastructure only, so a data residency requirement rules it out.

Momen: Is it suitable for a non-technical founder?

Only one willing to learn data modelling. If you want to point at a spreadsheet and get an application, this is the wrong end of the category.

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