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APIs · head to head

Appwrite vs NATS

Appwrite logo

Appwrite

APIs

Open-source Backend as a Service with REST API and SDKs

From
Free
Rated
-
Full reviewWebsite
NATS logo

NATS

Databases

High-performance messaging system for cloud-native applications

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Appwrite smaller ecosystem compared to Firebase; fewer third-party integrations and extensions; NATS core NATS has no persistence at all, so messages are lost if no subscriber is listening
  • They diverge on capability: Appwrite covers REST API, NATS covers Very low latency.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Appwrite and NATS actually diverge.

Attributes where Appwrite and NATS differ
AttributeAppwriteNATS
Pricing modelUnknownOpen source, no licence fee
PlatformsCloud (Managed), Self-Hosted, DockerLinux, macOS, Windows, Docker, Kubernetes
CategoryAPIsDatabases
Founded2019Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Appwrite

  • REST API
  • Authentication
  • Database
  • Multiple SDKs
  • Cloud functions
  • File storage
  • Docker support
  • Self-hosted support

Only in NATS

  • Very low latency
  • JetStream
  • Single binary
  • Request-reply

What people use each for

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

Appwrite

  • API Developmentnot NATS
  • API Gatewaynot NATS
  • API Testingnot NATS
  • API Documentationnot NATS
  • Microservicesnot NATS

NATS

  • Service-to-service messaging where latency is the binding constraintnot Appwrite
  • Edge and IoT messaging where a lightweight broker mattersnot Appwrite
  • Replacing a heavier broker when the workload does not need its guaranteesnot Appwrite

Where each one falls short

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

Appwrite

  • Smaller ecosystem compared to Firebase; fewer third-party integrations and extensions
  • Analytics, crash reporting, and A/B testing not included (Firebase includes these)
  • Requires infrastructure management for self-hosted deployments; not fully managed like Firebase Cloud
  • Mobile app support not as mature as Firebase's native iOS/Android SDKs

NATS

  • Core NATS has no persistence at all, so messages are lost if no subscriber is listening
  • JetStream adds the durability but also the operational complexity NATS is chosen to avoid
  • A much smaller ecosystem than Kafka or RabbitMQ, with fewer connectors and integrations
  • Fewer people know it, so hiring and existing organisational knowledge favour the alternatives

Pricing, plan by plan

Appwrite

Free
  • Cloud FreeFree
    • 75K MAU
    • 10GB storage
    • Unlimited projects
  • Cloud Pro$15/month
    • More storage
    • Priority support

NATS

Free
  • NATSFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Appwrite if

  • You need rest api.
  • You want to start without paying.
  • You work on Cloud (Managed), Self-Hosted, Docker.
  • You also want authentication.
Appwrite review

Choose NATS if

  • You need very low latency.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want jetstream.
NATS review

Questions people ask

Is Appwrite or NATS better?
Neither clearly leads. Appwrite starts at Free and NATS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Appwrite or NATS?
Appwrite starts at Free and NATS at Free.
Does Appwrite or NATS run on more platforms?
Appwrite runs on Cloud (Managed), Self-Hosted, Docker. NATS runs on Linux, macOS, Windows, Docker, Kubernetes.
Can I use Appwrite for free?
Both have a free tier, so you can try either at no cost before committing.
What is Appwrite best used for?
Appwrite is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what NATS is typically brought in for.
What can Appwrite do that NATS cannot?
Appwrite covers REST API, Authentication, Database, Multiple SDKs. NATS covers Very low latency, JetStream, Single binary, Request-reply.

Answered from the vendors’ own pages

Appwrite: Can Appwrite be self-hosted?

Yes. Appwrite is fully open-source and self-hosted with a single Docker command. Self-hosting is completely free with no feature restrictions, unlike the managed Appwrite Cloud.

Source
NATS: Is NATS free?

Yes, open source and CNCF-graduated. Synadia sells a managed service.

Appwrite: What is Appwrite Cloud's pricing?

Appwrite Cloud offers a free tier with unlimited projects, 75K monthly active users, and 10GB storage with no time limit. Pro plan starts at $15/month per organization member. Scale plan at $599/month includes dedicated resources and SOC 2 compliance.

Source
NATS: Does NATS persist messages?

Core NATS does not — it is fire-and-forget. JetStream adds persistence, streaming and replay when you need them.

Appwrite: What programming languages does Appwrite support?

Appwrite provides SDKs for 15+ languages including JavaScript, Flutter, Swift, Kotlin, Python, Ruby, PHP, .NET, and more, offering more language flexibility than Firebase.

Source
NATS: NATS or Kafka?

NATS is far lighter and lower latency, and much simpler to run. Kafka is the answer when you need a durable replayable log and a large connector ecosystem.

Appwrite: What backend services does Appwrite provide?

Appwrite includes Auth (with multi-factor auth), Databases, Storage (with compression and encryption), Serverless Functions, Messaging, Realtime subscriptions, and Sites (for hosting static and full-stack apps).

Source
Appwrite: Does Appwrite include real-time capabilities?

Yes. Appwrite's Realtime service covers all platform services by default through WebSocket subscriptions, enabling real-time updates across databases, functions, and messages.

Source
Appwrite: How does Appwrite compare to Firebase on costs?

Appwrite offers better cost predictability. Firebase's pay-per-read/write model can lead to unexpected bills with runaway queries, while Appwrite's self-hosted model only requires paying for your own infrastructure with completely predictable costs.

Source
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