# Synology C2 review (2026): is it worth $7.99 a month? > Synology's cloud storage and backup for NAS and S3 workloads Checked Nov 12, 2026 ยท graded Nov 13, 2026 by ToolGPA. Synology C2 is a family of cloud services from Synology: C2 Storage for backing up and syncing Synology NAS data, C2 Object Storage with an S3-compatible API, and backup for PCs and Microsoft 365. Data can be held in Frankfurt or Seattle data centers. - **Category:** File Storage & Sync - **Made by:** Synology Inc. - **Website:** https://c2.synology.com/en-global - **Runs on:** Web, macOS, Windows, Linux - **Who should skip it:** Not for you if you want a consumer file sync app, because C2 is built around Synology NAS and S3 workloads. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Synology C2 is a paid product with a free trial, starting at $7.99 per TB / month (C2 Object Storage). - **Pricing model:** Free trial - **Free plan:** None. - **Free trial:** 30-day free trial, no credit card required. | Plan | Price | What you get | | --- | --- | --- | | C2 Object Storage | $7.99 per TB / month | S3-compatible storage with free retrieval, no API or deletion fees and no minimum storage duration. | | C2 OneStorage | Custom | One capacity plan covering Hyper Backup, Hybrid Share, Object Storage and Surveillance365; price shown by a calculator. | Read from https://c2.synology.com/en-global/object-storage/overview on Nov 12, 2026. Prices change, so confirm with Synology C2 before buying. ## Key features - **C2 Storage for Hyper Backup:** Backs up Synology NAS data with versioning, deduplication on the Advanced plan and client-side AES-256 encryption. - **Hybrid Share:** Connects branch-office NAS devices to central cloud storage, streaming requested files and caching frequent ones locally. - **C2 Object Storage:** S3-compatible API with versioning and Object Lock, in EU and US data centers, with 11 nines of durability. - **Web portal restore:** Browse and download backed-up files from a browser, or restore with Hyper Backup Explorer on Windows, Mac and Linux. - **C2 Express Box:** A physical device for moving the first large batch of data into C2; options are available by contacting Synology. ## Good for - Synology NAS owners who want an off-site backup - Multi-site businesses syncing branch offices - Teams needing S3-compatible storage with fixed per-terabyte pricing ## Worth knowing - C2 Storage is designed for Synology NAS; it is not a general-purpose consumer file sync app. - The OneStorage price is shown only by a capacity calculator, so no figure was readable; $7.99 per TB is the Object Storage rate on its page. - Prices exclude VAT, which is added at checkout by billing address. - Deduplication and custom rotation need the Advanced plan of C2 Storage for Hyper Backup. ## ToolGPA grades **GPA: 2.0 out of 4**, graded Nov 13, 2026. Synology C2 is cloud storage and backup that works with Synology's own NAS boxes, with S3-compatible object storage at $7.99 a terabyte a month. It isn't a general file sync app, the OneStorage price is only shown by a calculator, and some backup options need the Advanced plan. - **Value for money: C.** $7.99 a TB a month for Object Storage, before VAT, which is between the middle ($7) and the dearer quarter ($9.99) of file storage. OneStorage has no readable price. - **Free plan and trial: C.** A 30-day free trial with no credit card needed. There's no free plan. - **Features: C.** Hyper Backup storage, Hybrid Share, S3 object storage, web restore and Express Box. But it's built for Synology NAS, and deduplication and custom rotation need the Advanced plan. - **Ease of use: C.** No rating on record. You connect it from a Synology NAS or an S3 tool and set up your own backup jobs. - **Platforms and integrations: C.** Web portal plus Mac, Windows and Linux programs, with Veeam, Cyberduck and Synology DSM. No phone app is named. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Synology's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among file storage and sync services - Synology C2's GPA of 2.0 is higher than 4 of the 45 other file storage and sync services we grade, and level with 8. - Its paid plans start at $7.99 a month, against a middle price of $6.32 for the category: 24 of the 37 others that charge start lower. - On features, ease of use and platforms it scores 2.0 out of 4. 21 tools score higher and cost less. The category's chart of price against score: https://toolgpa.com/charts/file-storage ## Keep it, or make your own? **Keep it.** To replace Synology C2 you would be making files kept in step across devices without losing one. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 33 of the 45 other file storage and sync services grade higher. It costs $95.88 a year. - You could not: Files kept in step across devices without losing one. - You could not: A file manager working directly on your disk. - You could not: Apps for macOS, Windows and Linux that stay in step with each other. - You could not: It plugs into other products, Veeam, Cyberduck and Synology DSM among them, and has an API. - You could not: End-to-end encryption done properly. - You could not: A physical object that comes with it. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Veeam, Cyberduck, Synology DSM **Tags:** File sync, Public API, End-to-end encrypted, File management ## Alternatives - [Synology Drive](https://toolgpa.com/tools/synology-drive): Private-cloud file sync and sharing that runs on a Synology NAS. [Compare](https://toolgpa.com/compare/synology-c2-vs-synology-drive) - [Backblaze B2](https://toolgpa.com/tools/backblaze-b2): S3-compatible object storage billed per terabyte. [Compare](https://toolgpa.com/compare/backblaze-b2-vs-synology-c2) - [Wasabi](https://toolgpa.com/tools/wasabi): S3-compatible cloud object storage at a flat per-TB rate. [Compare](https://toolgpa.com/compare/synology-c2-vs-wasabi) - [IDrive](https://toolgpa.com/tools/idrive): Cloud backup for many devices in one account, with a sync folder. [Compare](https://toolgpa.com/compare/idrive-vs-synology-c2) - [Storj](https://toolgpa.com/tools/storj): Distributed S3-compatible object storage priced per terabyte. [Compare](https://toolgpa.com/compare/storj-vs-synology-c2) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://c2.synology.com/en-global/object-storage/overview - https://c2.synology.com/en-global/storage/overview - https://c2.synology.com/en-global/pricing/onestorage - https://c2.synology.com/en-global Page: https://toolgpa.com/tools/synology-c2 Listed by ToolGPA (toolgpa.com).