11.6k installs squeezed into the US Top Grossing chart: Clean Now shows how low the bottom of the chart is

Clean Now: AI Storage Cleaner is an Android phone cleaner listed only in the US. Two months after launch, with 11.6k cumulative installs, it reached #161–#189 on the US Google Play utilities Top Grossing chart. It looks like a small product that broke out, but it isn't: it copies the industry-proven template of "cleaning + 3-day trial + weekly subscription", bought a wave of users in the US on a small budget, and new installs dropped to nearly zero from Nov 4. The takeaway isn't the product. It's a number the case exposes: the bottom of the US utilities Top Grossing chart has a surprisingly low bar.

A user who thought it was free

Sep 22, less than a month after launch, a US user gave it one star on Google Play: "Your ads say it's free. Then you have to pay 15.00, that's not free. Better off with the old cleaner tools from 8 years ago. I'd advise against it." 15 people marked it helpful, and as of Nov 6 it's still one of the most-liked reviews.

Two days later another one-star review got 18 likes: "When I was clearing dust from the speaker, the menu covered the start button. Your support email is invalid." Oct 5 another: "It says you can clean your phone for free. I downloaded it and found a big weekly charge. I followed the contact info to cancel and was told there's no such website. I was scammed." Oct 19: "I didn't sign up for this free 3-day thing, I just want to cancel. Please stop charging me, I can't afford it." (Google Play reviews, pulled 11-06)

The developer replied to none of them.

What it is

The first line of the store page is "Running out of storage again?" The features are a full photo-cleanup suite: finding duplicate and similar photos, keeping the best one, compressing large videos, merging duplicate contacts, and clearing files on Google Drive, with a "speaker dust cleaning" feature also mentioned in reviews. No ads; in-app purchase priced at $14.99–$49.99. From the reviews, the flow appears to be a paywall first, then a 3-day free trial, then a weekly subscription of about $15; $49.99 is probably a longer-period tier (inferred, tiers not verified).

The developer is Everengine Tech Hong Kong Limited, a Hong Kong company (Hong Kong company registration number BR 80623115), with this as its only app on Google Play. The website everengine.hk is a single vague company-intro page, the privacy policy is hosted on a random domain sending79256435.xyz, the registration email is [email protected], and nothing has been updated since Sep 22. Taken together, it looks like a team opened a new developer shell to test ad returns in one category, most likely a mainland Chinese team going global (inferred).

User verdicts are consistent: "Its only function is deleting photos... it doesn't clean junk files, emails or notifications. Useless for me." Of 2.78,52 ratings, 22 are one-star and 16 are five-star, with almost nothing in between. The five-stars are mostly short lines like "great app 👌" and "cool beans" and "most excellent cleaner".

How the volume came in, and how it stopped

Before Oct 20, the numbers are AppstoreSpy estimates; after that, they are Google Play installs. By those estimates, late September saw about 90 installs a day, late October through early Nov 3 saw three to seven hundred-plus a day, and from Nov 4 on it dropped to only 2–4 a day, with the rank sliding from #161 back to #181.

Where the users came from is clear in the reviews: "I keep getting ads for this app, I want them to stop!!!" (10-21) "This thing's pop-up ads never stop, I can't even use my phone" (10-23) "Stop pushing it onto my phone" (10-23). Users were seeing its ads over and over in other apps, which suggests the spend went mainly to in-app ad networks (AppLovin, Unity, Mintegral and similar; which one is unverified). The creative pitch was "phone full, free cleanup", and after install came the paywall and trial-to-weekly subscription.

It never once charted in the Top Free list, only in the US utilities Top Grossing list. That means downloads came from paid acquisition, not store exposure. It doesn't appear in the public ad libraries of Meta, Google or TikTok, nobody talks about it on X, and the only things you can find online are auto-generated APK-site pages.

Why it stopped in Nov 4 isn't visible from outside: maybe returns fell below the line and spend was cut, maybe the test round was finished, or maybe the platform throttled it. With no new moves, it will drop off the charts within a few weeks.

Why 11.6k installs was enough to chart

Because that stretch of the chart was already very shallow. On the same US utilities Top Grossing chart in Nov 6, #72 Movixel had only 4,660 installs, #92 Broll AI 3,840, and #197 VidAmber 2,667. With a weekly subscription around $15, a few percent of several thousand US installs converting to paid, and a few hundred dollars of revenue a day, is enough to rank #160–#190 (estimate).

For anyone building a subscription tool, this is a useful benchmark: in the US, reaching the bottom of the utilities Top Grossing chart doesn't take hundreds of thousands of installs, just a few thousand of the right users. But chart placement and making money are different things. What each purchased install costs, what share of trials convert to paid, and how many people refund are numbers it never disclosed, and they can't be calculated from the outside.

Who it's competing with

Photo cleaner plus weekly subscription: one of the most crowded Google Play utility niches of 2025–2026. Nov 6 US Tools Top Grossing:

Codeway's Cleanup is the template for this niche, and Clean Now's features and paywall are basically a smaller version of it. The name is an even bigger problem: Vietnamese utility giant iKame launched an app also called "Clean Now" 6 weeks earlier, now at 1.53M installs. Play has at least two more called CleanNow / Clean Now, and on iOS the name has been taken for 2021 years. Then there's the built-in stuff: Files by Google, Google Photos, and Samsung's "Free up space" are all free.

Its "Drive file cleanup" and "speaker dust cleaning" are the only differences, but not a single user in the reviews praised it for either. It has no differentiation, and doesn't need any. It charted on US-only targeting, weekly subscriptions, and a low bar at the bottom of the chart.

If it were you

Verdict: the product itself isn't worth chasing. It's a copycat, and Nov 4 spend has already stopped. What's worth learning is its test method: a few thousand US installs and a small budget to check whether a subscription niche can reach a top chart and whether the returns cover the cost.

Who it suits: small teams that already run in-app ad networks and can calculate their own acquisition cost and trial conversion; people with a subscription tool who want a quick read on US market response.

Who it doesn't suit: anyone planning "yet another photo cleaner". There's Codeway's 36.5M, iKame's tens of millions, and free built-in features on top. Anyone who hasn't run paid acquisition and is counting on organic store traffic: this niche has none. Anyone with a single developer account who cares about account safety: "ads say free, weekly charge after install" is exactly what Google Play's subscription transparency policy watches.

How to do it: don't copy the cleaning theme, copy the method. Pick a subscription tool where you can really differentiate, target only the US, and follow industry-standard pricing and trial (3-day trial, weekly subscription). Use a few thousand installs to check three things: whether it reaches the category top grossing chart, what share of trials convert to paid, and how many refunds and one-star reviews come in. If returns don't clear the bar, stop. Don't cling to one niche. Make the paywall clearly state price and billing cycle, and make sure the support email actually gets replies. Half of this app's one-stars come from those two things.

How to acquire users: paid acquisition through in-app ad networks, with creatives that state the user's pain directly (storage full, photos a mess). Don't write "free"; write "free 3-day trial, then $X/week". You'll take less flak and invite less policy trouble.

When to get in: there's no window to rush for. The cleaning niche is already packed, and the method works whenever you use it.

Signs you've misread it: ① before December, it resumes hundreds of new installs a day and climbs back into the top #160, meaning the Nov 4 spend was only paused and this small-budget approach still pays off in cleaning; ② Everengine uses the same shell to launch other niches (subscription tools beyond AI cleaning), meaning it's batch-testing niches, and that testing method is itself making money; ③ conversely, if the new cleaning apps that reached the chart on a few thousand installs get pulled or drop off in a wave over the next month or two, the bottom-of-chart route is tightening too.

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Data and sources: install counts, ratings, and US Tools top grossing ranks come from Google Play (10-29 to 11-06); cumulative installs through 9 (October) are AppstoreSpy estimates; review quotes are from the Google Play US store, pulled 11-06; installs and ranks for same-chart competitors come from Google Play (11-06); developer info comes from the Play store page, everengine.hk, the privacy policy page, and Hong Kong company registration; subscription tiers, ad channels, and spend are unverified; places marked "inferred" or "estimated" are inference and estimation.