Best Unlimited Cloud Storage: Top 7 Providers Compared in 2025

The best unlimited cloud storage can mean different things for individuals and businesses. For individuals, privacy and ease-of-user are key. However, if you’re a small to medium-sized business owner, you likely need to prioritize privacy, security, scalability and cost efficiency. 

Enter the focus of this article.

Here, we’ll review seven unlimited cloud storage providers based on factors like features, benefits, strengths, and potential drawbacks. From this analysis, you’ll get a complete picture of the best unlimited cloud storage provider for your needs, or the needs of your business. 

What Is Unlimited Cloud Storage?

Unlimited cloud storage is a service that allows you to store a massive amount of data without hitting storage capacity limits or paying additional fees based on the amount of data you store. 

Unlimited cloud storage means you never have to worry about running out of space or deleting files to make room for new ones. 

Benefits of Unlimited Cloud Storage

It's a huge benefit to unify all of your data in one spot. But the benefits don't end there. A few more benefits include: 

Scalability & Flexibility - Individuals with large storage needs and growing businesses can expand their data storage without purchasing additional hardware or migrating to new plans.

Enhanced Collaboration & Accessibility - Remote teams and individuals on the go can access their files instantly from anywhere in the world without version conflicts or email attachments.

Improved Backup & Recovery - Unlimited storage eliminates the need to choose which files to backup, ensuring complete data protection. 

Sustainability - Individuals and companies can eliminate the need for constantly purchasing, upgrading, and disposing of physical storage hardware. 

Key Considerations When Choosing the Best Unlimited Cloud Storage Provider

Choosing an unlimited cloud storage provider is similar to choosing other SaaS solutions. You want to evaluate both the product itself and the vendor offering it. Pay extra attention to things like data privacy, secure integrations, and compliance.

Here are some key considerations to keep in mind during your search:

Security & Privacy (End-to-End Encryption, Compliance)

Your data's privacy and security should be non-negotiable, especially when storing unlimited amounts of sensitive information.

Look for providers that offer end-to-end encryption, meaning your files are encrypted on your device before being uploaded and can only be decrypted by you (not even the storage provider can access your data). An end-to-end encrypted approach guarantees your information remains completely private.

Ease of Use & Accessibility

Unlimited storage is only valuable if you or your business team can actually use it effectively. That means the user interface should be intuitive enough that you can start uploading and privately sharing immediately without extensive training. 

Both businesses and individual users should consider how the service works across different devices and operating systems - most people use a mix of Windows, Mac, mobile devices, and web browsers.

Accessibility also means reliable performance. Can you quickly upload large files? How fast are downloads? Is the service responsive during peak usage hours?

A storage solution that's difficult to use, or frequently slow, will ultimately be more frustrating than valuable, regardless of how much storage space it offers.

File Sharing & Collaboration Features

Collaborative features become especially important with unlimited storage, as larger teams and more projects mean more opportunities for miscommunication and file conflicts. Does "final_version_FINAL_v2" sound familiar? 

If version control has been an issue in the past, collaboration features can solve that problem. It gives team members the ability to comment on files and use the productivity tools they already use.

Customer Support & Reliability

As an individual, it’s frustrating to run into any downtime.  But, when your business depends on cloud storage, downtime isn't just inconvenient - it's costly.

Equally important is the quality of customer support. If problems arise, you need responsive, knowledgeable help. 

Research the provider's uptime history and service level agreements. Dedicated account managers and priority technical assistance are a perk for business and individual users alike.

Cost/Value Balance

While unlimited storage might seem like a great deal, it’s important to examine the total cost of ownership. Some providers offer attractive introductory pricing that increases significantly with key feature add-ons. 

Be sure to check if there are hidden fees for bandwidth, API calls, or important add-on features. Also, if you're a business, think about how the pricing would scale as your team grows.

Compliance Considerations (HIPAA, GDPR, SOC 2)

Individuals in Europe and companies serving European customers must navigate GDPR requirements, which include strict data residency and privacy controls, so keep an eye out for GDPR compliant providers.

Also look for HIPAA compliance and SOC 2 certifications. These demonstrate when a provider has been audited for security, availability, and confidentiality controls. These are great to have, whether you're an individual or a business.

The Best Unlimited Cloud Storage Providers In 2025

Before, we get started, let's answer an important question:

Why listen to us? Because we’ve been serving the cloud storage industry for well over a decade. So, we’ve seen companies come and go. 

We’ve seen tech giants offer Unlimited cloud storage, then turn their backs on the individuals and SMBs that depended on that plan. As a result, we know the ins-and-outs of the best unlimited cloud storage. And even if you don’t choose to go with us, we want to make sure you know what to look out for!

1. Sync.com — Best for Privacy & Security

Sync.com was founded in Toronto in 2011, and has been focused on private, secure cloud storage for individuals and businesses since day one. Strict end-to-end encryption and compliance with USA, European, and Canadian data privacy laws, along with a growing user base of millions worldwide, make it the best unlimited cloud storage provider for individuals and businesses.

Speed & Security

Sync.com uses end-to-end encryption, where only end users can decrypt files. While that may mean slightly slower upload/download speeds compared to providers that leave data unprotected, performance remains strong for individual and business workflows.

Pricing & Value

Sync pricing for Teams starts at $6/user/month for 1TB, while the most popular plan for individuals is the Pro Solo 2TB, offering substantial storage at a price that beats competitors.

Although the Unlimited plan is called Teams+ Unlimited and comes with 3 user seats, both individual and business users can subscribe to it for the near-limitless storage space.

All paid accounts have the bonus peace of mind that comes with a 30-day money-back guarantee.

Compliance & Data Residency

Users can store data 100% in the U.S. or Canada, helping meet data residency requirements for compliance and privacy laws.

2. Box Business — Good Enterprise Collaboration

Box, Inc. is a California-based public company founded in 2005, best known for pioneering enterprise collaboration. Box provides secure cloud content management, workflow automation, and integrations to compliance-heavy industries.

Features & Core Benefits

Box specializes in file storage, collaboration, e-signature workflows, and document lifecycle management. Its integrations (Box Notes, Box Drive, Box Sign, Box Relay, Box Shield) and compliance controls cater to industries like government.

Strengths & Weaknesses

This vendor’s strengths include: good security, compliance, AI-powered workflow automation, and granular file access controls.

It comes at the tradeoff of storage weaknesses, and some questions around privacy. Storage capacity on lower-tier plans is limited (100GB), and high costs for unlimited storage won’t work for everyone.

And while AI-powered workflow automations can be convenient, there are real privacy concerns when you allow AI to access and read your files. For these reasons, Box.com can be good for some, but not a fit for everyone.  

Pricing & Value

Business plans start at about $20/user/month for 100GB, with unlimited storage and advanced features starting from roughly $30/user/month and up. Pricing is competitive for compliance-heavy organizations, but may be overkill for SMBs that just need private sharing.

3. Backblaze — Good for Simple Backups

U.S.-based Backblaze, founded in 2007 and headquartered in San Mateo, California, aims to deliver straightforward computer and server backup. It’s best for simple SMBs wanting simple backups – not advanced sharing, document editing, or collaboration capabilities.

Features & Core Benefits

Backblaze is good for set-and-forget-it scenarios. Online backups come with basic space, setup, and version history (default: 30 days, extendable to 1 year for free).

Strengths & Weaknesses

This vendor’s biggest strengths are cost-effectiveness and simplicity (Backblaze aims to “just work” for peace of mind). As for the platform's weaknesses, the limited feature set can be seen as a drawback. It's for backups only – not team collaboration or document workflow.

Some users have complained about reliability and customer support issues in public reviews, and there are few controls over file sharing – a feature only available with a Backblaze B2 Cloud Storage account.

Pricing & Value

Backblaze costs about $7 per computer/month for 1TB. There’s no practical storage cap, and restores are available via web or USB shipment. But while good for hands-off backup, Backblaze only offers single-computer licenses, which isn’t ideal for team collaboration and editing, or document workflows.

4. Jottacloud — Good Hybrid Cloud + Backup Solution

Jottacloud is a Norwegian cloud provider, founded in 2008 and based in Oslo, offering hybrid backup and cloud storage with a focus on European privacy and sovereignty. All data is stored exclusively in Norway, making it attractive for customers with strict EU/EEA compliance needs.

Features & Core Benefits

Jottacloud’s solutions mix cloud storage and backup with block-level sync, file versioning, and rewind capabilities. Additional features include office integration and native mobile apps.

Strengths & Weaknesses

Strengths lie in fast speeds for European customers, flexible sync and backup hybrid model, unlimited backup option, and decent privacy. Data is stored in Norway, which is generally seen as having good privacy laws. But with those benefits come a few key compromises.

Jotta Cloud is not end-to-end encrypted, which is a big drawback for anyone looking to keep their files truly private. It also comes with limited collaboration and sharing features, and no incremental backup.

Pricing & Value

Expect 5GB for free before having to upgrade to a paid plan. The three options available to businesses are about $170/year (up to two users), $260/year (up to 10 users), and $650/year (unlimited users), all offering 1TB. Individual plans are slightly cheaper and differently structured to accommodate personal use cases.

5. AWS / Azure — Enterprise-Level Unlimited Storage

Amazon Web Services (founded 2006, Seattle) and Microsoft Azure (2008, Redmond) lead the pack for IT-centered solutions that often cater to infrastructure.

Much of the world’s online infrastructure – DevOps, SaaS, backup, and massive enterprise workflows – is built on them by default.

Scalability & Integrations

AWS S3 and Azure Blob offer virtually unlimited, highly scalable storage with global data centers, extensive integrations (databases, analytics, AI/ML), and support for custom security, compliance, and performance controls.

Features & Core Benefits

Both platforms offer deep enterprise features: multiple storage tiers (Standard, Cool, Archive), predictive tiering, robust APIs, and native compliance monitoring. Workflow integrations span IoT to machine learning.

Strengths & Weaknesses

Strengths include high scalability for infrastructure use-cases, global reach, and integrations. Weaknesses? Microsoft and Amazon are not privacy-focused companies. They’re more so in the business of maximizing convenience by building in-depth data profiles about individuals and companies.

Furthermore, these solutions have the complexity and hidden costs of a system intended for enterprises. SMBs will need IT expertise to manage policy rules, billing, and compliance.

Pricing & Value

Highly flexible – pay for only what is used, but expect variable costs (from fractions of a cent per GB/month up). This is not a solution for individuals looking for simple day-to-day storage needs. Instead, it’s best suited for enterprises or SMBs with substantial IT resources.

6. Telnyx — Good for AI Data Processing

Telnyx is first and foremost a voice AI, text-to-speech, and speech-to-text service. Cloud storage and special APIs are offered as additional solutions. But, their offering is worth mentioning, especially for AI projects.

The company was founded in 2009 and currently operates out of Austin, Texas. Competitive pay-as-you-go pricing makes this option best for SMBs with IT resources investing in AI projects, big data analytics, or needing advanced data processing capabilities.

Scalability & Integrations

Telnyx is built for large organizations, so its capacity to handle your company’s data load shouldn’t be an issue. It offers S3-compatible object storage with instant vector embeddings and seamless AI/ML integrations.

Features & Core Benefits

Features revolve around AI. Zero egress fees, multi-zone U.S. hosting, and efficient summarization tools. Automated insights are another benefit to note if operating on a large scale.

Strengths & Weaknesses

This solution is not tailored for individuals. Instead, it’s  designed for data-driven, AI-exposed environments. It's a great solution for big data and AI-driven companies. But, for individuals and most SMBs looking to securely store and access files across devices and team members, there is a steep learning curve – and better matches out there.

Pricing & Value

Telnyx Cloud Storage offers unlimited cloud storage, but pricing isn’t completely predictable. Instead, it’s dependent on usage.

Users can try it at no cost before choosing one of two payment plans – pay-as-you-go and volume-based pricing.

7. New Providers - Good for Intro Pricing

No one’s expecting you to have made a decision at this point.

The above-listed options clearly differ in lots of ways. Maybe you’ve already tried some. If that’s the case, there’s a more risky  alternative available – exploring new providers without established track records.

Just remember, startups often launch with unlimited storage plans at rock-bottom prices hoping to build their user base quickly before adjusting their business model.

The proposed value evaporates long-term, though, because most startups fail within their first few years. And when a cloud storage provider goes out of business, your data goes with them.

The real question isn't whether you're getting a good deal today - it's whether this company will still exist and honor its commitments in two years from now.

Pricing & Value Considerations

New providers often offer short-term storage value through:

• Introductory pricing that can be below market rates
• Longer trial periods to test their service thoroughly
• Flexible contract terms without long-term commitments

However, you should be ready for feature Limitations and buggy service. New providers frequently launch with bare-bones functionality, promising to add features later, while struggling to provide user-friendly service.

You might get unlimited storage, but also end up with:

• Poor user experience
• Sub-par privacy and security features
• No collaboration tools
• Delayed  support with missing guides
• No Integration with important business applications
• Unreliable backup and recovery options

Missing Features: Beyond obvious gaps, new providers often overlook subtle but crucial features like file versioning history, granular sharing permissions, audit logs for compliance, or bandwidth optimization that only become apparent when you actually need them.

Feature Delay: Even if new providers eventually add missing features, they're always playing catch-up to the best unlimited cloud storage companies who have had years to refine their offerings based on real user feedback.

Are There Limits to Unlimited Cloud Storage?

Here's the uncomfortable truth: for many providers, "unlimited" cloud storage isn't actually unlimited.

When you dig into the fine print of most cloud storage providers, you'll discover a web of fair-use policies, throttling mechanisms, and hidden restrictions that can dramatically impact your experience.

Most platforms have fair-use policies that define "excessive use" - often around 300% of an allocated allowance. That effectively defeats the purpose for people looking for genuinely unlimited storage.

Speed is another important consideration. For example, big platforms like AWS implement throttling when users exceed certain bandwidth quotas as a deliberate limitation designed to manage server resources. Great for them, not so great for your download and upload speeds.

That makes you wonder whether certain providers are actually all they're cracked up to be. Does unlimited actually mean unlimited? Does it mean cutting corners on security?

In most cases, there's some kind of catch, which is why reading into the fine print is so important.

Sync.com Does Things Differently

With Sync.com, unlimited cloud storage truly means unlimited. 

Plus, while other providers may slow your data transfer speeds when you hit certain usage thresholds, our solution can be relied on for consistent performance and data access free of storage limits.

Can You Get Free Unlimited Cloud Storage Safely?

Free unlimited cloud storage options are extremely rare. When you see these offers, you're usually looking at one of three caveats:

• Severe usage restrictions hidden in the terms of service
• Data harvesting operations where your information is the real product
• Bait-and-switch tactics designed to get you hooked before introducing fees

You Are the Product with Free Unlimited Cloud Storage

Remember the old internet adage: if you're not paying for the product, you are the product.

Free cloud storage often comes with terms that allow providers to access, analyze, or even share files under certain circumstances. Are you comfortable with that level of access to your files?

The Hidden Dangers of Free Unlimited Cloud Storage

The average cost of a data breach reached $4.88 million in 2024. But for you, the personal cost of lost privacy and compromised information can be immeasurable.

Loss of control is another critical risk. With free cloud services, data typically leaves your company's IT environment, meaning privacy settings are beyond your control, and data that’s not meant to be shared is at risk of being exposed to unauthorized personnel.

Before you hand over your valuable data to any free service, ask:
How do they make money if the service is free? 

What is their business model? Do they have a history of poor security or privacy issues? Who has access to your files, and under what circumstances? What happens to your data if the company goes out of business?

A Truly Private Alternative

Final Thoughts on the Best Unlimited Cloud Storage

The bottom line: unlimited cloud storage is a significant decision. For individuals, this decision likely impacts priceless memories and some of your most sensitive files.

For organizations, this decision affects productivity, security, and your compliance posture.

Take time to thoroughly evaluate providers against the factors that matter most. Don’t make decisions based solely on storage capacity or price.

Everyone has an opinion about who the best unlimited cloud storage provider is. Those who base their selection on facts all share the same position: it’s Sync.com. Considering privacy, features – and actual reviews – we lead the pack.