Backblaze B2 vs Sumsub Comparison
Detailed comparison of features, pricing, and capabilities
Last updated April 4, 2026
Overview
Compare key metrics and features at a glance
Backblaze B2
https://www.backblaze.com/b2
Backblaze B2 is a cloud storage service that provides scalable object storage at 1/4th the cost of Amazon S3. The service offers robust APIs, CLI tools, and integrations with various applications, allowing developers and businesses to store and retrieve any amount of data. It features strong durability, native encryption, and lifecycle rules for data management.
Sumsub
https://sumsub.com
Sumsub is an identity verification platform that provides KYC/AML compliance solutions for businesses worldwide. The platform offers automated identity verification, document validation, face authentication, and fraud prevention through AI-powered technology. Their solution helps companies onboard customers safely while meeting regulatory requirements across different jurisdictions.
Quick Comparison
| Detail | Backblaze B2 | Sumsub |
|---|---|---|
| Category | Cloud Storage | Identity Verification |
| Starting Price | Free | $1000/mo |
| Plans Available | 1 | 1 |
| Features Tracked | 1 | 1 |
| Founded | 2007 | 2015 |
| Headquarters | San Mateo, USA | London, United Kingdom |
Features
Detailed feature-by-feature comparison
Feature Comparison
| Feature | | |
|---|---|---|
| api | ||
| S3-Compatible API | ||
| compliance | ||
| AML Screening | ||
Pricing
Compare pricing plans and value for money
Backblaze B2
From $0/mo
Price Components
- storage: $0.006/GB
- download: $0.01/GB
Best For
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
Sumsub
From $1000/mo
Price Components
- base_subscription: $1000/month (1000 included)
- additional_verification: $1.5/verification
Best For
High-growth crypto exchanges, neobanks, and global fintechs needing robust KYC/AML with top-tier fraud detection against sophisticated AI-driven threats.
Integrations
See which third-party services are supported
Supported Integrations
Coming Soon
Integration comparison data for Backblaze B2, Sumsub is being collected and will be available soon.
Strengths & Limitations
Key strengths and limitations of each service
Backblaze B2
Developers, businesses, and AI teams seeking affordable, S3-compatible object storage with high performance and low egress costs for scalable data needs.
- S3-compatible API enables seamless drop-in replacement for AWS S3 tools and code.
- Costs 1/5th of Amazon S3 with flat rates, free first 10GB, and generous free egress up to 3x storage.
- Supports Object Lock for ransomware protection and 10TB file uploads with no total capacity limit.
- B2 Overdrive delivers 1Tbps throughput for AI/ML/HPC at hyperscaler speeds without egress fees.
- Lacks advanced enterprise features like multi-region replication found in hyperscalers.
- Smaller company size may raise concerns about long-term scalability for massive enterprises.
- Limited feature set compared to full-suite platforms, focusing mainly on core storage.
Sumsub
High-growth crypto exchanges, neobanks, and global fintechs needing robust KYC/AML with top-tier fraud detection against sophisticated AI-driven threats.
- Leading verification provider for crypto, powering 8 out of 10 top global exchanges with superior accuracy over speed.
- AI-powered platform analyzes 4M+ fraud attempts, reporting 180% rise in sophisticated multi-step attacks for proactive defense.
- Real-time AML screening ensures global regulatory compliance across jurisdictions for neobanks and mobility apps.
- Professional plan at $1000/month delivers advanced verification, document validation, and face authentication tailored for high-stakes onboarding.
- Professional plan starts at $1000/month, potentially too costly for startups or low-volume businesses.
- Pricing details limited to one high-tier plan, lacking transparency for basic or scaled needs.
- UK HQ may complicate data residency for businesses needing strict local compliance in certain regions.
Company Info
Company details and background
Backblaze B2
Sumsub
Comparison FAQ
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