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AWS RDS vs Aiven

AWS RDS

Optimal Baseline Tier

db.t4g.small plan (Optimal for baseline workload)

$29.11/ month
Included storage0 GB
Included bandwidth100 GB
Included RAM2 GB
Base plan$23.36
Storage overage$5.75
Bandwidth overage$0.00
Compute overage$0.00

Aiven

Optimal Baseline Tier

Startup plan (Optimal for baseline workload)

$75.00/ month
Included storage80 GB
Included bandwidthUnlimited
Included RAM4 GB
Base plan$75.00
Storage overagePlan limit
Bandwidth overagePlan limit
Compute overage$0.00

Choosing between the infrastructure of AWS RDS and Aiven requires analyzing their pricing thresholds. You can launch on AWS RDS for $23.36. Alternatively, Aiven's equivalent plan starts at $75.00. Looking strictly at the entry barrier, AWS RDS provides a more cost-effective starting point, undercutting Aiven's base plan by $51.64 per month.

As your platform scales, resource limits will impact your budget. Expanding your limits on AWS RDS means additional storage is billed at $0.12 per GB, while excess egress traffic is billed at $0.09 per GB. When evaluating the same limits on Aiven, you will find that additional storage is requires a plan upgrade, while excess egress traffic is requires a plan upgrade.

Architectural Cost Simulation

Database Parameters

50 GB
100 GB
2 GB RAM
AWS RDS (db.t4g.micro)Details →
Requires higher plan
Base plan:$11.68
RAM scaling:Plan limit
Storage overage:$5.75
Egress overage:Plan limit
AWS RDS (db.t3.micro)Details →
Requires higher plan
Base plan:$13.14
RAM scaling:Plan limit
Storage overage:$5.75
Egress overage:Plan limit
Lowest cost
AWS RDS (db.t4g.small)Details →
$29.11 / mo
Base plan:$23.36
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
AWS RDS (db.t3.small)Details →
$32.03 / mo
Base plan:$26.28
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
AWS RDS (db.t4g.medium)Details →
$53.20 / mo
Base plan:$47.45
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
AWS RDS (db.t3.medium)Details →
$58.31 / mo
Base plan:$52.56
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
AWS RDS (db.t4g.large)Details →
$99.92 / mo
Base plan:$94.17
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
AWS RDS (db.m6g.large)Details →
$121.82 / mo
Base plan:$116.07
RAM scaling:$0.00
Storage overage:$5.75
Egress overage:$0.00
Aiven (Free)Details →
Requires higher plan
Base plan:$0.00
RAM scaling:Plan limit
Storage overage:Plan limit
Egress overage:Plan limit
Aiven (Developer)Details →
Requires higher plan
Base plan:$5.00
RAM scaling:Plan limit
Storage overage:Plan limit
Egress overage:Plan limit
Aiven (Hobbyist)Details →
Requires higher plan
Base plan:$12.00
RAM scaling:Plan limit
Storage overage:Plan limit
Egress overage:Plan limit
Aiven (Startup)Details →
$75.00 / mo
Base plan:$75.00
RAM scaling:$0.00
Storage overage:$0.00
Egress overage:$0.00
Aiven (Business)Details →
$180.00 / mo
Base plan:$180.00
RAM scaling:$0.00
Storage overage:$0.00
Egress overage:$0.00
Aiven (Premium)Details →
$270.00 / mo
Base plan:$270.00
RAM scaling:$0.00
Storage overage:$0.00
Egress overage:$0.00

Still exploring your options?

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Frequently asked questions

Is AWS RDS more cost-effective than Aiven?

The starting price for AWS RDS is $23.36 per month, whereas Aiven starts at $75.00. The true cost-effectiveness depends heavily on your specific resource requirements beyond these base tiers.

How do resource limits and scaling fees compare between AWS RDS and Aiven?

When scaling, overages dictate the final bill. For AWS RDS, extra storage is billed at $0.12 and network egress is billed at $0.09. In contrast, for Aiven, expanding storage requires a plan upgrade and expanding egress requires a plan upgrade.

Should I choose AWS RDS or Aiven for my infrastructure?

Choose AWS RDS if your workload strictly aligns with their base limits and penalty structure. Choose Aiven if their starting footprint offers a more predictable financial trajectory for your specific application requirements.

Pricing metrics are updated automatically from official provider data. Last synced:
August 31, 2026