Software · head to head
CloudWatch vs InfluxDB

InfluxDB
Software
Purpose-built time series database for metrics and events
- From
- Free
- Rated
- -
The short version
- Each has a real cost: CloudWatch the free tier covers 5 GB of log ingestion and 10 custom metrics a month, after which log ingestion is $0.50 per GB from 5 to 30 GB; InfluxDB high-cardinality data causes memory pressure and performance degradation
- They diverge on capability: CloudWatch covers Metrics collection, InfluxDB covers Time-series Storage.
Where they differ
Only the attributes on which CloudWatch and InfluxDB actually diverge.
| Attribute | CloudWatch | InfluxDB |
|---|---|---|
| Pricing model | usage-based | Unknown |
| Platforms | Web, Api | Cloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, Azure |
| Founded | 2006 | 2012 |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
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 CloudWatch
- Metrics collection
- Log aggregation
- Dashboards
- Alarms and notifications
- API
- Webhooks
- REST
- Api support
Only in InfluxDB
- Time-series Storage
- Flux Query Language
- High Write Throughput
- Data Compression
- Retention Policies
- Continuous Queries
- Built-in Dashboards
- Telegraf
Both cover
- Web support
What people use each for
The jobs each tool is most often brought in to do.
CloudWatch
- Metrics and log collection for AWS workloadsnot InfluxDB
- Alarming on thresholds across AWS servicesnot InfluxDB
- Querying logs with Logs Insightsnot InfluxDB
- Live tailing logs during an incidentnot InfluxDB
- Distributed tracing alongside X-Raynot InfluxDB
InfluxDB
- Monitoringnot CloudWatch
- IoT datanot CloudWatch
- Financial datanot CloudWatch
- Log analyticsnot CloudWatch
- Observabilitynot CloudWatch
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
CloudWatch
- The free tier covers 5 GB of log ingestion and 10 custom metrics a month, after which log ingestion is $0.50 per GB from 5 to 30 GB
- Custom metrics are $0.30 each for the first 10,000, so instrumenting broadly gets expensive before volume discounts apply
- Each custom dashboard beyond the free three is $3 a month
- Alarms are billed at $0.10 per alarm metric a month, with high-resolution alarms costing more
- Log storage beyond the free 5 GB is $0.03 per GB per month on top of the ingestion charge
InfluxDB
- High-cardinality data causes memory pressure and performance degradation
- No support for joins or transactions like relational databases
- Queries limited to 72-hour window in InfluxDB 3 OSS Core
- Clustering and authentication features absent from community version
Pricing, plan by plan
CloudWatch
Free- FreeFree
- Metrics collection
- Log aggregation
- Dashboards
InfluxDB
Free- Cloud Serverless FreeFree
- 5 MB writes per 5 minutes
- 300 MB queries per 5 minutes
- 30 day retention
- Cloud Serverless Usage-Based$null/mo
- 0.0025 USD per MB ingested
- 0.012 USD per 100 queries
- 0.002 USD per GB-hour storage
Which should you pick?
Choose CloudWatch if
- You need metrics collection.
- You want to start without paying.
- You work on Web, Api.
- You also want log aggregation.
Choose InfluxDB if
- You need time-series storage.
- You want to start without paying.
- You work on Cloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, Azure.
- You also want flux query language.
Questions people ask
- Is CloudWatch or InfluxDB better?
- Neither clearly leads. CloudWatch starts at Free and InfluxDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, CloudWatch or InfluxDB?
- CloudWatch starts at Free and InfluxDB at Free.
- Does CloudWatch or InfluxDB run on more platforms?
- CloudWatch runs on Web, Api. InfluxDB runs on Cloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, Azure.
- Can I use CloudWatch for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is CloudWatch best used for?
- CloudWatch is most often used for metrics and log collection for aws workloads, alarming on thresholds across aws services, querying logs with logs insights, live tailing logs during an incident. Of those, metrics and log collection for aws workloads and alarming on thresholds across aws services are not what InfluxDB is typically brought in for.
- What can CloudWatch do that InfluxDB cannot?
- CloudWatch covers Metrics collection, Log aggregation, Dashboards, Alarms and notifications. InfluxDB covers Time-series Storage, Flux Query Language, High Write Throughput, Data Compression. Both handle Web support.
Answered from the vendors’ own pages
InfluxDB: Is there a free tier and what are the limits?
InfluxDB 3 Core OSS is free forever for local development and prototyping. Cloud Serverless free tier includes 5 MB writes per 5 minutes, 300 MB queries per 5 minutes, 30 day retention, and 2 databases.
SourceInfluxDB: Can I self-host InfluxDB?
Yes, InfluxDB 3 Core is fully open source and can be self-hosted with no license required. InfluxDB 3 Enterprise is self-managed and includes a 30-day free trial.
SourceInfluxDB: What are the series cardinality limitations?
InfluxDB is sensitive to high-cardinality data. High cardinality increases RAM usage and can trigger out-of-memory errors, making it unsuitable for some workloads with many unique tag combinations.
SourceInfluxDB: Does InfluxDB support SQL queries?
InfluxDB has limited SQL support. Full SQL is available in InfluxDB 3, but earlier versions support only specific SQL commands and use InfluxQL as the primary query language.
SourceInfluxDB: Can I export my data from InfluxDB?
Yes, data can be exported from InfluxDB using query results. However, the process and supported formats depend on the version and deployment type you are using.
SourceRelated pages
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