DriveDx vs TreeSize Free
Side-by-side comparison of features, pricing, ratings, and alternatives.
DriveDx is a macOS utility that continuously analyzes S.M.A.R.T. attributes and other health indicators for internal and external hard drives and SSDs, flagging each drive as OK, Failing, or Failed. The goal is to surface early warning signs of drive failure while there's still time to back up data, rather than discovering a dead drive after the fact. It runs background monitoring with desktop alerts, offers short and extended self-tests, and calculates separate health and performance ratings using algorithms tuned differently for SSDs versus traditional HDDs. It also supports scheduled email reports for remote or headless Mac monitoring.
TreeSize Free, by JAM Software, is a free disk space analyzer for Windows that shows which folders and files are consuming storage. It presents a treemap visualization of disk usage and can generate PDF reports, making it easy to spot what is taking up space on a drive.
- Catches early failure warnings before total drive loss
- One-time purchase, not a subscription
- Covers up to 3 personal Macs on one license
- Separate SSD and HDD-aware health algorithms
- Completely free for personal use
- Fast scanning even on large drives
- Visual treemap makes large folders easy to spot at a glance
- No cloud connection required, data stays local
- Mac only, no Windows version
- Cannot repair a drive, only detects and warns of problems
- S.M.A.R.T. data isn't always reliable on every external enclosure or controller
- Free edition is licensed for non-commercial use only
- Not compatible with Windows Servers, unlike the paid Professional edition
- Lacks advanced features like duplicate detection found in the paid version
More alternatives & similar tools
Alternatives to DriveDx
View all →
Alternatives to TreeSize Free
View all →
Scan an entire Windows drive in seconds and see exactly what is eating your disk space.
Free, open-source treemap visualizer that shows exactly what is filling up your Mac's disk space.
The Verdict
AI-generated from listing dataChoose TreeSize Free if you need a free Windows tool to visualize disk usage; choose DriveDx if you need a paid Mac utility that monitors drive health via S.M.A.R.T.
Key differences
- •Operating system: TreeSize Free runs on Windows, DriveDx runs on macOS only.
- •Primary purpose: TreeSize Free visualizes storage usage; DriveDx monitors drive health and predicts failures.
- •Pricing model: TreeSize Free is free for personal use; DriveDx requires a one‑time purchase.
- •Feature depth: TreeSize Free lacks advanced health diagnostics; DriveDx provides real‑time S.M.A.R.T. alerts and self‑tests.
Pricing & value
TreeSize Free is completely free for personal Windows use, while DriveDx requires a one‑time paid license.
Ease of use / learning curve
Both are desktop apps with simple interfaces; no evidence one is significantly easier than the other.
Features & depth
DriveDx offers continuous S.M.A.R.T. monitoring, self‑tests, and health ratings; TreeSize Free only shows storage usage.
Integrations & ecosystem
TreeSize Free runs locally with no cloud connection, keeping data on‑premises; DriveDx has no listed integrations.
Support
DriveDx provides email support and a knowledge base; TreeSize Free offers no specified support options.
Security & privacy
TreeSize Free explicitly runs entirely on‑premises with no cloud connection, ensuring data stays local.
Scalability
DriveDx covers up to three Macs per license and monitors multiple internal/external drives; TreeSize Free is limited to Windows desktops.
Choose DriveDx if…
Mac users who want proactive drive‑health monitoring and are willing to pay once.
Choose TreeSize Free if…
Windows users needing a free tool to locate large files and folders.
Common questions
Can I use TreeSize Free on a Mac?
No, TreeSize Free is only available for Windows desktops.
Does DriveDx fix drive problems?
No, it only detects and warns about health issues; it cannot repair drives.
Is there any cost to use TreeSize Free for commercial purposes?
No, the free edition is licensed for non‑commercial personal use only; commercial use requires the paid Professional edition.