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Technology · head to head

Attio vs MongoDB

Attio logo

Attio

Technology

The CRM built for the next generation of companies

From
Free
Rated
-
Full reviewWebsite
MongoDB logo

MongoDB

Technology

The developer data platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Attio the free plan stops at 3 seats and 50,000 records; MongoDB 16 MB maximum document size limits large single objects
  • They diverge on capability: Attio covers Custom data model, MongoDB covers Document model.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Attio and MongoDB actually diverge.

Attributes where Attio and MongoDB differ
AttributeAttioMongoDB
Pricing modelfreemiumUnknown
PlatformsWeb, Ios, Android, ApiCloud (Atlas), Self-hosted, Multi-cloud (AWS, Google Cloud, Azure)
Founded20212007

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Technology).

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 Attio

  • Custom data model
  • Flexible views
  • Email integration
  • Calendar sync
  • Automations
  • Mobile app
  • Real-time collaboration
  • Templates

Only in MongoDB

  • Document model
  • Distributed architecture
  • ACID transactions
  • Real-time analytics
  • Full-text search
  • Time series data
  • Geospatial queries
  • Aggregation framework

What people use each for

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

Attio

  • Sales pipelinenot MongoDB
  • Customer managementnot MongoDB
  • Deal trackingnot MongoDB
  • Investor relationsnot MongoDB
  • Partnership managementnot MongoDB

MongoDB

  • Mobile applicationsnot Attio
  • Content managementnot Attio
  • Real-time analyticsnot Attio
  • IoT applicationsnot Attio
  • Gaming backendsnot Attio

Where each one falls short

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

Attio

  • The free plan stops at 3 seats and 50,000 records
  • Outbound email is capped at 200 messages a month on the free plan and 1,000 on Plus
  • Call Intelligence, sequences, advanced reporting and permission controls all require the Pro tier
  • Custom objects are capped at 3 on free, 5 on Plus and 12 on Pro, with unlimited objects reserved for Enterprise
  • File storage is capped at 50 GB on the free and Plus tiers

MongoDB

  • 16 MB maximum document size limits large single objects
  • No native JOIN support for relational data operations
  • Higher memory usage due to storing field names with each document
  • Eventual consistency in distributed deployments can cause data stale reads

Pricing, plan by plan

Attio

Free
  • FreeFree
    • Up to 3 seats
    • 50000 records
    • 3 objects
  • Plus$44/month
    • Up to 10 seats
    • 250000 records
    • 5 objects
  • Pro$99/month
    • Unlimited seats
    • 1000000 records
    • 12 objects
  • EnterpriseFree
    • Custom pricing
    • Unlimited objects
    • Custom record limits

MongoDB

Free
  • M0Free
    • 512 MB storage
    • Learning and exploration
  • M2$9/month
    • 2 GB storage
    • Development and testing
  • M5$25/month
    • 5 GB storage
  • M10+$56.94/month
    • Dedicated clusters for production

Which should you pick?

Choose Attio if

  • You need custom data model.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want flexible views.
Attio review

Choose MongoDB if

  • You need document model.
  • You want to start without paying.
  • You work on Cloud (Atlas), Self-hosted, Multi-cloud (AWS, Google Cloud, Azure).
  • You also want distributed architecture.
MongoDB review

Questions people ask

Is Attio or MongoDB better?
Neither clearly leads. Attio starts at Free and MongoDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Attio or MongoDB?
Attio starts at Free and MongoDB at Free.
Does Attio or MongoDB run on more platforms?
Attio runs on Web, Ios, Android, Api. MongoDB runs on Cloud (Atlas), Self-hosted, Multi-cloud (AWS, Google Cloud, Azure).
Can I use Attio for free?
Both have a free tier, so you can try either at no cost before committing.
What is Attio best used for?
Attio is most often used for sales pipeline, customer management, deal tracking, investor relations. Of those, sales pipeline and customer management are not what MongoDB is typically brought in for.
What can Attio do that MongoDB cannot?
Attio covers Custom data model, Flexible views, Email integration, Calendar sync. MongoDB covers Document model, Distributed architecture, ACID transactions, Real-time analytics.

Answered from the vendors’ own pages

Attio: How much does Attio cost per user?

Attio's Plus plan is $44/user/month (or $35/month annually with 20% discount). Pro is $99/user/month (or $79/month annually). The Free plan includes up to 3 seats at no cost.

Source
MongoDB: Does MongoDB offer a free tier?

Yes. MongoDB Atlas offers an M0 free tier with 512 MB storage for learning and exploration, plus paid options starting at $9/month for M2 with 2 GB storage.

Source
Attio: What are Attio's seat and record limits for each plan?

Free plan includes up to 3 seats with 50,000 records. Plus supports up to 10 seats with 250,000 records. Pro offers unlimited seats with 1 million records. Enterprise has custom record limits.

Source
MongoDB: Can I self-host MongoDB?

Yes. You can run MongoDB Community Edition on your own servers, or use MongoDB Enterprise Advanced for self-managed production deployments with enterprise features.

Source
Attio: Are there additional costs for Attio beyond the per-user subscription?

Yes, workspace credits are available as add-ons ($70-$475/month depending on volume). Annual billing provides a 20% discount on the base per-user cost.

Source
MongoDB: What is the maximum document size in MongoDB?

Documents are limited to 16 MB. For documents exceeding this limit, you can use MongoDB's GridFS API to store files larger than the maximum size.

Source
MongoDB: Does MongoDB support ACID transactions?

Yes. MongoDB supports ACID transactions within a single document by default, and multi-document ACID transactions are available for replica sets and sharded clusters in MongoDB 4.0+.

Source
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