How does RAID Calculator handle mixed drive sizes?
RAID Calculator excels at planning for real-world NAS setups where drives are not identical. You can assign specific sizes to each bay, even leaving them empty, and the app will accurately calculate usable space and data distribution across these mixed drives.
What NAS systems does RAID Calculator support?
RAID Calculator supports a wide range of popular NAS systems including Synology (SHR, SHR-2, RAID 1, 5, 6), Unraid, ZFS (RAID-Z), SnapRAID, and Btrfs RAID1. It also handles classic RAID levels like 0, 1, 5, 6, 10, 50, 60, and JBOD.
Can I compare different storage configurations with RAID Calculator?
Yes, you can see your drives under every supported system at once, sorted by usable space. Tapping on a system allows you to switch to it and observe how the same bays reconfigure, making it easy to compare potential setups.
Does RAID Calculator offer upgrade planning?
Absolutely. The 'Biggest Upgrade' feature identifies the single purchase that unlocks the most space. You can also save your current setup and compare it with proposed changes, seeing exact gains like '+4 TB usable'.
Is RAID Calculator suitable for beginners?
Yes, RAID Calculator includes an 'info sheet' for every RAID level and NAS system, providing an overview, pros and cons, and typical uses. For ZFS and NAS systems, it even explains how the app calculates the results, aiding learning.
What platforms is RAID Calculator available on?
RAID Calculator is built for iOS and is available on both iPhone and iPad. It utilizes native controls and supports features like Dark Mode, Dynamic Type, and full VoiceOver support.
Does RAID Calculator have ads?
No, RAID Calculator is ad-free. The app is designed with privacy in mind and does not require an account or display advertisements.
How often is RAID Calculator updated?
The latest version, 1.7.1, was last updated on October 15, 2026. While specific update frequency isn't detailed, the app has been actively maintained since its release in 2010.
