Disclosure up front: we make Shiny, which appears in this list for the memory job. We've tried to write this the way we'd want it written as a buyer.
Why people look for MacBooster alternatives
Two reasons come up repeatedly. First, cost: at $39.95-89.95 a year with no one-time option, MacBooster is priced similarly to CleanMyMac but without CleanMyMac's longer, cleaner reputation. Second, trust: Malwarebytes flags MacBooster as a potentially unwanted program, and Macworld's own review states it is "no surprise people think it's malware," referring to how aggressively its scans present results. Neither of these makes MacBooster dangerous, but both are reasonable grounds for wanting a different tool.
The five jobs and the focused tools that handle each
Memory optimisation: Shiny or Memory Cleaner
$4.99 once / FreeThe job: Freeing RAM that macOS is holding for inactive processes when memory pressure climbs.
Shiny ($4.99 once): A THEODOREHQ product, so factor that in. Lives in your menu bar, one click frees memory, covers up to three Macs, no subscription, no scan results to interpret. For a direct look at MacBooster's memory feature specifically, see CleanMyMac vs MacBooster, which covers the broader suite comparison.
Memory Cleaner by Nektony (free with paid extras): A free tier that monitors memory and cleans on demand. The paid upgrade adds auto-cleaning thresholds.
Pick Shiny for the simplest one-time option. Pick Memory Cleaner free if you want to start at no cost.
Junk file and cache cleanup: manual Storage management or CleanMyMac
Free / ~$40/yrThe job: Finding and clearing caches, logs, and old downloads.
System Settings > Storage (built in, free): Apple's own Storage panel surfaces large files and recommends what to remove, at no cost and with no third-party scan involved.
CleanMyMac (subscription, $39.95-89.95/yr): A more thorough scan with a longer track record than MacBooster and a notably cleaner reputation; see is CleanMyMac safe for the full picture.
Start with the built-in Storage panel. Only consider a paid suite if you genuinely need deeper scanning.
Uninstalling apps completely: AppCleaner
FreeThe job: Removing an app along with its leftover caches, preferences, and support files.
AppCleaner (free): Drag an app onto AppCleaner and it finds every associated file for review before deletion. Completely free, no subscription, trusted by the Mac community for years.
AppCleaner replaces MacBooster's uninstaller for free, with no upsell involved.
Privacy cleaning: browser settings + manual clearing
FreeThe job: Clearing browser history, cookies, and cached login data.
Built-in browser tools (free): Safari, Chrome, and Firefox all include a "Clear History and Website Data" option in their own settings, doing the same job MacBooster's privacy cleaner performs, without a third-party app involved at all.
This job rarely needs a dedicated app. The browser you already use handles it.
Disk space optimisation: DaisyDisk
$11.99 onceThe job: Visualising what is actually taking up space on your drive.
DaisyDisk ($11.99 once): Maps your entire drive into a sunburst chart so you can see immediately which folders are consuming space. One-time purchase, no subscription, a much narrower and more polished tool than a suite's bundled disk feature. See DaisyDisk vs CleanMyMac for a deeper comparison of this specific job.
DaisyDisk does this one job better than most bundled suite features, for a one-time cost.
The mix-and-match recipe
A complete replacement stack, priced honestly:
- Memory: Shiny at $4.99 once (or Memory Cleaner, free)
- Junk cleanup: System Settings Storage panel, free
- Uninstalling: AppCleaner, free
- Privacy cleaning: Your browser's own settings, free
- Disk analysis: DaisyDisk at $11.99 once
Total one-time cost if you want the paid tools: $16.98. MacBooster over five years at $39.95-89.95/year: $200-450.
When MacBooster is still the right choice
Conceding honestly: if you want a single dashboard for all five jobs and the subscription price is acceptable, MacBooster does provide that convenience. Some users genuinely prefer one interface over managing several apps, even knowing the reputation concerns. That's a legitimate tradeoff to make with full information, which is the point of this post.
For the safety question specifically, see is MacBooster safe, and for a direct comparison against its closest premium competitor, CleanMyMac vs MacBooster.
A note on trying before you subscribe
MacBooster, like most suites in this category, typically offers a free scan before requiring payment to actually apply fixes. That scan step is worth using deliberately: run it, look closely at what it reports as "issues," and check whether those findings feel proportionate to a Mac you already know the history of, rather than accepting the summary at face value. This is also where the reputation concerns above are worth keeping in mind; a scan that reports an alarming number of problems on a Mac you maintain reasonably well is exactly the pattern security researchers flag PUP-classified software for. Comparing that free scan's findings against what a tool like Apple's own Storage panel or Activity Monitor independently shows you is a quick, no-cost way to sanity-check any suite's claims before paying for anything.