Log Management · head to head
Fluent Bit vs AppDynamics
A
AppDynamics
Log Management
Enterprise Application Performance Management
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Fluent Bit fluent Bit ships over 100 built in plugins against more than 1,000 external plugins available for Fluentd, so fewer integrations exist out of the box; AppDynamics appdynamics.com/pricing returns a 301 redirect to Splunk's observability pricing page; the product is now sold as Splunk AppDynamics
- They diverge on capability: Fluent Bit covers Log collection, AppDynamics covers Application performance monitoring.
Where they differ
Only the attributes on which Fluent Bit and AppDynamics actually diverge.
| Attribute | Fluent Bit | AppDynamics |
|---|---|---|
| Pricing model | open-source | usage-based |
| Founded | 2015 | 2008 |
Identical on both: starting price (Free), free tier (Yes), platforms (Web, Api), user rating (Not yet rated), category (Log Management).
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 Fluent Bit
- Log collection
- Lightweight processing
- Data parsing
- Event filtering
Only in AppDynamics
- Application performance monitoring
- Distributed tracing
- Real-time analytics
- Alert management
Both cover
- API
- Webhooks
- REST
- Web support
- Api support
What people use each for
The jobs each tool is most often brought in to do.
Fluent Bit
- Lightweight log and metric forwarding from containers and edge devicesnot AppDynamics
- Kubernetes node level log collection with a small memory footprintnot AppDynamics
- Filtering and enriching telemetry before shipping it to a backendnot AppDynamics
AppDynamics
- Application performance monitoring for Java, .NET and other enterprise application stacksnot Fluent Bit
- Business transaction tracing across distributed application tiersnot Fluent Bit
- Infrastructure monitoring priced per vCPUnot Fluent Bit
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Fluent Bit
- Fluent Bit ships over 100 built in plugins against more than 1,000 external plugins available for Fluentd, so fewer integrations exist out of the box
- It is written in C, so extending it beyond the built in plugins means writing C rather than Ruby
- Dependencies are zero only until a plugin requires one
AppDynamics
- appdynamics.com/pricing returns a 301 redirect to Splunk's observability pricing page; the product is now sold as Splunk AppDynamics
- Infrastructure Edition starts at $6 per vCPU per month billed annually, so cost scales with core count rather than host count
- Premium Edition starts at $33 per host per month and Enterprise Edition at $50 per host per month, both billed annually
- The published figures are starting prices only, with volume pricing requiring a sales quote
Pricing, plan by plan
Fluent Bit
Free- FreeFree
- Log collection
- Lightweight processing
- Data parsing
AppDynamics
Free- FreeFree
- Application performance monitoring
- Distributed tracing
- Real-time analytics
Which should you pick?
Choose Fluent Bit if
- You need log collection.
- You want to start without paying.
- You work on Web, Api.
- You also want lightweight processing.
Choose AppDynamics if
- You need application performance monitoring.
- You want to start without paying.
- You work on Web, Api.
- You also want distributed tracing.
Questions people ask
- Is Fluent Bit or AppDynamics better?
- Neither clearly leads. Fluent Bit starts at Free and AppDynamics at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Fluent Bit or AppDynamics?
- Fluent Bit starts at Free and AppDynamics at Free.
- Does Fluent Bit or AppDynamics run on more platforms?
- Both run on Web, Api, so platform support will not decide this one for you.
- Can I use Fluent Bit for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Fluent Bit best used for?
- Fluent Bit is most often used for lightweight log and metric forwarding from containers and edge devices, kubernetes node level log collection with a small memory footprint, filtering and enriching telemetry before shipping it to a backend. Of those, lightweight log and metric forwarding from containers and edge devices and kubernetes node level log collection with a small memory footprint are not what AppDynamics is typically brought in for.
- What can Fluent Bit do that AppDynamics cannot?
- Fluent Bit covers Log collection, Lightweight processing, Data parsing, Event filtering. AppDynamics covers Application performance monitoring, Distributed tracing, Real-time analytics, Alert management. Both handle API, Webhooks, REST, Web support.