---
title: "Best Cloud Storage Services: How to Choose the Right One"
description: "Comparing free storage and end-to-end encryption: find the best cloud service for your documents, photos, and sensitive data."
url: "https://www.alemasone.com/en/best-cloud-storage-services-comparison/"
language: "en"
published: 2025-07-12
updated: 2026-09-20
categories: ["Software and Tools"]
translations:
  it: "https://www.alemasone.com/it/migliori-cloud-storage/"
  es: "https://www.alemasone.com/es/mejores-servicios-cloud-storage-elegir/"
  fr: "https://www.alemasone.com/fr/meilleurs-services-cloud-storage/"
  pt: "https://www.alemasone.com/pt/melhores-servicos-cloud-storage-como-escolher/"
  de: "https://www.alemasone.com/de/die-besten-cloud-speicher-vergleich/"
---

# Best Cloud Storage Services: How to Choose the Right One

When choosing a cloud service, more than just storage space matters—it's **who can read your files**. With end-to-end encryption, which [Proton Drive](https://proton.me/drive), MEGA, and Sync.com offer by default, files are encrypted on your device so the provider cannot open them. On [Google Drive](https://www.google.com/drive/), OneDrive, and Dropbox, however, the provider can technically access them.

This doesn't mean you should avoid them; you just need to know what it entails. For documents that need to be shared and edited in a group, integration with workflow tools matters most; for personal documents and sensitive data, privacy is the priority.

## Free storage comparison

| Service | Free storage | End-to-end encryption |
|----------|----------------:|----------------------|
| [MEGA](https://mega.io/) | 20 GB | Yes, by default |
| Google Drive | 15 GB | No |
| [pCloud](https://www.pcloud.com/) | Up to 10 GB | Paid option available |
| [Box](https://www.box.com/it-it/home) | 10 GB | No |
| [IDrive](https://www.idrive.com/) | 10 GB | Yes, if you choose a private key |
| [iCloud](https://www.icloud.com/) | 5 GB | Partial, depends on settings |
| [OneDrive](https://www.microsoft.com/it-it/microsoft-365/onedrive/online-cloud-storage) | 5 GB | No |
| Proton Drive | Up to 5 GB | Yes, by default |
| [Sync.com](https://www.sync.com/) | 5 GB | Yes, by default |
| [Dropbox](https://www.dropbox.com/it/) | 2 GB | No |

All free plans have limits beyond storage: monthly traffic (MEGA), number of devices (the free version of Dropbox syncs three), and maximum single file size (250 MB on the free Box plan). Read these before uploading anything important.

## Which one to choose based on usage

### Shared work documents

**Google Drive** and **OneDrive** remain the best for collaborative writing: you can edit the same document together, comments work seamlessly, and version history is comprehensive. If your group already uses one of these two, switching will likely cause more problems than it solves.

OneDrive is integrated into Windows and Office, and with [Microsoft 365](/en/best-microsoft-office-alternatives-free-paid/) Personal or Family, you get up to 1 TB per person. Google Drive offers 15 GB for free—the most generous among the giants—but it's shared with Gmail and Google Photos.

![The Microsoft OneDrive interface showing shared folders and file synchronization statuses](interfaccia-microsoft-onedrive-cartelle.png "OneDrive: the most integrated option for work documents")

![Google Drive open on an Android tablet showing project folders](interfaccia-box-cloud-storage-computer.png "Google Drive: 15 GB free, shared with Gmail and Photos")

**Box** is designed for businesses: it connects to Salesforce, Slack, Microsoft 365, and Google Workspace, and offers very precise controls over who sees what. The 10 GB free plan is fine for testing, but less so for daily use given the 250 MB file limit.

![The Box web interface and desktop app showing files from a corporate project](interfaccia-web-box-con-file-aziendali.png "Box: built for integration with business software")

**Dropbox** is the pioneer and still has the fastest synchronization for large files because it only uploads the modified parts. However, the 2 GB free plan is now too small; it makes sense as a paid service for those who [work with video](/en/best-video-editing-software-every-level/) and heavy files.

![The Dropbox home screen showing recent files and image previews](pagina-iniziale-dropbox-file.png "Dropbox: fast synchronization, but little free space")

### Personal photos and videos

Here, storage capacity and library management are what matter. **Google Photos**, which uses your Drive storage, and **iCloud** for Apple users recognize faces and objects, search through photos, and organize them automatically in ways others cannot. With many photos, free space runs out quickly, at which point price becomes the deciding factor.

On iPhone and Mac, iCloud is the most convenient choice: phone backups, photos, and documents sync without a second thought, and iCloud+ adds **Hide My Email** and Private Relay. The downside is that outside the Apple ecosystem, you only have the web interface—no apps for Android or Linux. If you enable **Advanced Data Protection**, even iCloud encrypts almost everything end-to-end.

![iCloud Drive with the same folders open on Mac, iPad, and iPhone](icloud-drive-su-piattaforme-apple.png "iCloud: the most convenient choice if you only use Apple devices")

### Private documents

**Proton Drive** is the simplest choice: open-source end-to-end encryption by default, based in Switzerland, with integration for Proton Mail and Proton Pass. Uploading is slightly slower than commercial services. **MEGA** offers end-to-end encryption with the most generous free plan of all. **Sync.com**, a Canadian service, does the same but with a more minimalist interface and version history even on basic plans.

![The Proton Drive screen showing encrypted files and an indication that end-to-end encryption is active](interfaccia-proton-drive-con-cartelle.png "Proton Drive encrypts files on your device before uploading them")

For **pCloud**, there is a paid zero-knowledge encryption option (pCloud Encryption): if you enable it, even the provider cannot read that folder.

### Backup, not synchronization

This is a distinction many ignore, and it comes at a high cost: **a synchronization service is not a backup**. If you accidentally delete a file or ransomware encrypts your documents, the change will propagate everywhere within seconds.

You have two lines of defense: version history, which all services offer for varying periods, and a true, separate backup that preserves copies over time.

For backups, there are services built specifically for this purpose, such as **IDrive**: it saves computers, phones, and external drives for the whole family in one account, keeps old versions, and allows you to choose a private key known only to you. It offers 10 GB free and multi-terabyte plans at low prices, but it isn't designed for collaborating on documents.

![The IDrive restore window showing saved computer folders and backup dates](interfaccia-ripristino-idrive-computer.png "IDrive restores files and folders from a specific date")

![The version history of a cloud document in Photoshop showing saved revisions and the restore option](interfaccia-photoshop-cloud-storage.png "Version history is the only safety net included with synchronization")

> **The 3-2-1 rule still applies.** Three copies of your data, on two different media types, with one copy offsite. The cloud covers the offsite copy well, but it isn't a complete backup strategy on its own: you also need a local copy on an external drive that is not always connected.

## The cost over time

A cloud subscription is an expense that renews for years, so you need to consider the total cost over that period. Here are two practical considerations:

**Bundled packages often cost less.** Storage sold alongside email, Office, or other services (Microsoft 365, Google One, Proton Unlimited, Apple One) costs less than buying the same amount of storage on its own, if you already use those services.

**Lifetime offers do exist.** pCloud and a few others sell storage via a one-time payment instead of a subscription. It usually pays for itself in three or four years, but it depends on how long the company lasts: it's a bet, not a guaranteed deal.

## Before entrusting your data to a service

- **How do you get out?** Check if you can download everything in bulk (Google has Takeout). A service that is difficult to leave is a time trap.
- **Where are the servers located?** This changes which laws apply to your data. For an Italian company, having servers within the European Union makes GDPR compliance much simpler.
- **What version history does it offer?** Thirty days is the standard; some plans go up to one year.
- **How does sharing work?** Expiration links and passwords are features that often require a paid plan.
- **What happens if you stop paying?** Usually, your account becomes read-only for a period, after which the data is deleted. Timelines vary greatly.

## FAQ

### Which cloud service offers the most free space?

MEGA, with 20 GB and end-to-end encryption included. Then there's Google Drive with 15 GB, though this is shared across Drive, Gmail, and Photos and fills up faster than you might think, followed by Box, pCloud, and IDrive with 10 GB.

### Does end-to-end encryption slow things down?

A little, because the encryption happens on your device and requires processing power, especially with large files: you'll notice it when uploading a lot of data at once. There is also a practical limit: the service cannot search through your documents because it cannot read them. And if you lose both your password and your recovery code, no one can recover your files.

### Can I use multiple services together?

Yes, and it makes sense to do so: keep work documents where collaboration is easiest, personal ones on an encrypted service, and photos where automatic organization works best. The price you pay is having to remember where everything is: decide on a clear rule and stick to it.

### Does the cloud replace an external hard drive?

No, they complement each other. The cloud protects against hardware failure and theft because your data is stored elsewhere; an external hard drive protects against accidental deletions, malware, and service shutdowns. Together they cover different scenarios, as neither can cover everything on its own.

### What happens to my files if the service shuts down?

Reputable providers give months of notice and tools to download everything. That is exactly why you should check from day one that bulk export exists and works: doing it calmly is very different from rushing to do it under a deadline.

### Which cloud is the most secure?

Among the mainstream options, Proton Drive, Sync.com, and MEGA are top choices because they include end-to-end encryption by default, meaning the provider cannot read your files. However, security also depends on you: enable two-factor authentication on any service you use, because most data thefts happen through stolen passwords rather than provider vulnerabilities.