“The best free adblocker — This is genuinely the BEST ad blocker I have ever used. I’m not even exaggerating when I say this thing basically saved my life. 😭 Before installing it, I was fighting for my life against pop-ups, and 500 ads…”
Public review signal · 100 reviews scanned · scope limited to review patterns.
4.7 ★899 ratings
—Downloads
4+Age rating
52 MBApp size
FreeIn-app purchases
About this app
uBO Lite (uBOL) is a reliable and efficient content blocker.
The default ruleset corresponds to uBlock Origin's default filterset:
- uBlock Origin's built-in filter lists - EasyList - EasyPrivacy - Peter Lowe’s Ad and tracking server list
You can enable more rulesets by visiting the options page -- click the _Cogs_ icon in the popup panel.
uBOL is entirely declarative, meaning there is no need for a permanent uBOL process for the filtering to occur, and CSS/JS injection-based content filtering is performed reliably by the browser itself rather than by the extension. This means that uBOL itself does not consume CPU/memory resources while content blocking is ongoing -- uBOL's service worker process is required _only_ when you interact with the popup panel or the option pages.
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
No theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
Aggressive ad load8 reviews · user report
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“easy, effective, essential — downloaded it first on my windows laptop and it changed my life. when safari extensions were added, this is the first place i looked. set it up once and all ads are GONE. i dont know how i ever used the…”
“Blocking less and less ads each day — Blocking less and less ads each day. I assume Google has some new way to avoid this adblocker. Turn off JavaScript, that will block all ads.”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 2026.825.1619.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Business modelFree
Prices and terms as disclosed by the store listing.