STRAWMANT  Under no circumstances should anybody buy this. I've owned this software for some years now and recently tried to run a scan of my Time Machine backup disc. WhatSize either hung, crashed and at the last attempt caused a kernel panic.

I emailed the Whatsize support people and this is the reply I got:

"as of version 4.7 or so WS will not scan TM volumes for various technical reasons.

for example TM volumes tend to be extremely large and so WS will most likely run out of RAM

that could cause the panic

another thing is that in crawling the disk WS could stumble on a bad block and cause panic."

Disgraceful. I've downloaded 2 free utilities both of which successfully scanned my hard drive and reported the detail I expected.

As others here have pointed out there are free utilities that work. This is the worst response I've ever had from any developer.

What is MacUpDates policy on advertising software that doesn't work on the admission of the software developer?  
(Version 4.9.6)

WHITESHARK  FYI,

The developer has changed the licensing terms since this software first came out. When I purchased this in 2008, the licensing terms stated:

"id-design grants to you the non-exclusive, limited right to install and use the id-design software program downloaded or contained on the CD-ROM or disk (the "Software"). The license permits installation on any number of computers for any number of users, provided it is distributed in its original, unmodified form."

I am a single user with 5 Macs (some fairly old, but still running). I use this program MAYBE once a month on one computer. However, one of the recent updates changed the licensing terms so that it is limited to ONE USER and TWO COMPUTERS. I know get a warning every time I use this because I originally activated on all five of my computers. This also suggests this software is calling back to the developer every time it is launched.

Look elsewhere like others have suggested.  
(Version 4.9.5)

ISTRA  @ APPLEHC

haha, it is funny in the world of applications, users and developers. There are as many kinds as there are people.

Maybe some feel an inner urge, to find or invent the ultimate hack protection. That would make one very succesful, I suppose :-)

grts  
(Version 4.9.3)

CORPSECORPS  I'm testing the trial version, but even if i pick a folder within the 20 GB limit, the PieChart shows as an empty white pane except for the size of the folder in black type.

If i hover the mouse over the center, i see a grey circle and a box showing the path and size, period. No pie chart. No drilling in or out.  
(Version 4.9.1)

ISTRA  this is a fine application and I find the price also not such a horror!

What I find annoying is that when I use e.g. Xslimmer to save some space, WhatSize gives a message that "it has tampered with" and doesn't even start!

This for me is self contradicting, both appz serve the purpose of making our machines lighter off excessive weight, but WhatSize claims more rights on my system!? It doesn't allow me to take away of it (in my case) some useless code?!

Come on!

On the other hand it has a nice interface and graphic part, the colour scheme is functional and onobtrussive and works fine.  
(Version 4.8.3)

ICONZ113  this is the best app for this function right? even though im reading some you you guys have issues but is there an app better then this by itself? I ask because I cant decide which to get  
(Version 4.8.1)

NICOLASD  With Grand Perspective and Omni Disk Sweeper both free and excellent products, there's absolutely no point in paying for this program that once was free itself.

I'd say pass WhatSize up and check out the great free alternatives first.  
(Version 4.8.1)

APPLEHC  Do not expect the developer to fix it without asking for an upgrade fee again :) I siwtched to Baseline and OmniDiskSweeper. Both good products!  
(Version 4.8.1)

ERIC WOEHLER  confirming flaky/unpredictable behaviour under 10.6. suggest you dont use it until developer releases update for SL.  
(Version 4.8)

JP2110  Erratic behavior under Snow Leopard :(  
(Version 4.8)