Best cost effective mac optimiser and uninstaller? No ratings available.

Read Optimize storage space on your Mac - Apple Support.

Never once in the history of macOS and its predecessors have I found it necessary or beneficial to "clean" a cache. Those things as well as memory "cleaners" can only result in degraded performance and accelerated hardware failure. If a Mac starts to do something odd, simply restarting it will often fix it. Or, boot Safe Mode which deletes certain cache files maintained by the system (among other tasks). That is the only "cache cleaning" that will ever be required.

Products claiming magical ability to "optimize" "clean" "protect" or otherwise enhance a Mac's performance are extremely popular and highly lucrative scams. Don't be a victim.

• Secure erase/shredder

A software product that can provide absolute assurance of irreversible data destruction does not exist for a variety of technologically sound reasons. Those reasons vary for magnetic media vs flash memory as they do for various file storage systems (HFS+ / APFS / others), but they're valid nonetheless. The only way to ensure data remains secure and hopelessly irretrievable without the correct encryption key is to use full disk encryption. For Macs that means FileVault.

There are a variety of highly rated popular products that claim to securely erase or "shred" Mac files. They're all 100% worthless and a total waste of money. Some of them are quite expensive. $50 is a lot to pay for a meaningless animation. Once again... don't be a victim.

Noe. You don't need such apps. They're a brand of junk ware designed to separate the inexperienced from their hard-earned.

Apple engineers work for thousands of hours to optimise the OS. You really think some shareware outfit in the Ukraine or SE Asia is going to do better?

OSX/macOS has the ability to maintain its own optimization. It uses a UNIX filesystem which significantly different from what you'd use for Windows like NFTS. Once you start introducing 3rd party programs to do this they will almost certainly conflict with what the Mac is doing already without the overhead.

Optimise hard-drive space

Lovely phrase. We're all in favour of optimising everything. What does it mean here tho?

Uninstall an app properly with all its files in different locations

This isn't windows. There's no registry. Drag the app to the trash. Use its uninstaller if it has one. That gets all the important bits. All that's left a plist files, typically a couple of kb is size.

Cleaning all cach 

Love this one. Cache cleaning is an excellent way to slow down your computer. There is a single occasion where this is useful - if you have a corrupted cache. If you're having that frequently then you have other problems. As a rule, don't clean caches, they don't get dirty. If you must, restart in safe mode. That'll do it for ya.

Remove applications and photos Junk

What junk are these? What is 'photos' junk?

Clean the memory/Ram

Utterly unnecessary these days and will actually interfere with how Macs use Ram.

Remove updates not needed on all mac apps 

Say what? If you don't want an update don't download it.

remove broken downloads

What is this? 1998?

Browser Cleaner including chrome

What does this mean that's not covered by the browser's own reset features and the aforementioned cache cleaning.

Duplicate file finder

There are several quite good ones. I've used this one: https://dupeguru.voltaicideas.net

Large Files finder

This is good: https://sourceforge.net/projects/grandperspectiv/

Malware removal

Be very careful what you choose to install here. There's a lot of FUD about and even more crapware. The Macs own X-Protect system is very good, and that plus some common sense is all you need.

Optimise privacy

Another lovely phrase. What does it mean?

Free VPN

First step to optimising privacy? Avoid free VPNs. But anyway, there are loads. Try a google search.

Set passwords on external Folders and drives

Check out Disk Utility in your Applications/Utilities folder.

FULL READ AND WRITE  TO NTFS DRIVES

Install Paragon.

Secure erase/shredder

Your Mac have an SSD? Then these mean very little. But there's one built-in to Pathfinder.

Is it not good for a Disk to have a defrag to optimise the information on the drive and extend the hard drives' life?

I doubt anyone has defragged a Mac Disk since 2005. It's built-in to the OS.

My next question would be how to do it easier then having one app that does it all by selecting the options and then have a single click of a button to do this optimisation.

Most of your list is basically voodoo, my friend. The problem with these apps is that they promise a lot but in the hands of an inexperienced user they can also do a lot of damage. Your Mac is really good at looking after itself. Better than you are. By all means clarify what you mean by 'optimise' disk space and privacy. It's exactly the kind of term that these apps use. It means nothing.

Are you running a NT file system or a Unix file system? Mac Extended Journaled is a Unix file system, it does not scatter files over the drive like NTFS, and does not gain any benefit from optimization.

If you are trying to write NFTS from a mac what is it doing with the NTFS file permissions? NTFS file permissions are not interchangeable with Unix.

My suggestion is if you want these and you want most of them to do something then Windows 95 is the OS that would be better suited for this nursing. Mac OS does not gain much or any benifit from most everything on your list.

None.

Don't look for trouble.

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