Cleanfox App Review: Free Inbox Cleaner, But What's the Catch?

Cleanfox is a free app that scans your inbox, lists the newsletters and promotional senders you’re subscribed to, and lets you unsubscribe or bulk-delete them with a swipe. It works well and costs nothing, but the trade-off is real: Cleanfox is funded by turning the receipts and order confirmations in your mailbox into anonymised market data, so whether it’s right for you depends on how you feel about that.

One quick clarification, since it’s being searched alongside games right now: Cleanfox is not a mobile game. It’s an email cleaner made by Foxintelligence, a Paris-based company that NielsenIQ acquired in 2021.

What Cleanfox does

Cleanfox connects to your mailbox and groups your mail by sender. Each newsletter or promotional sender shows up as a card, and MobileSyrup’s walkthrough notes the card shows the sender, how much they email you, and your open rate. You then:

• Swipe left to unsubscribe (and optionally delete that sender’s existing emails).
• Swipe right to keep the subscription.

The app also keeps a running stats screen showing how many newsletters you’ve unsubscribed from, how many emails you’ve deleted, and an estimate of the CO2 emissions saved. Treat the CO2 number as a motivational estimate rather than a precise measurement.

According to its App Store listing, Cleanfox works with Gmail, Outlook, Hotmail, Yahoo, iCloud and AOL, and reviewers note it also handles other IMAP accounts.

How to get started

1. Install Cleanfox from the official Apple App Store or Google Play listing, or use the web version on the official Cleanfox site. Avoid third-party APK sites.
2. Create an account and choose your email provider.
3. Connect your mailbox. For several providers, including Gmail, Cleanfox now uses a more secure connection that requires two-step verification and an app-specific password. In Gmail, that means turning on 2-Step Verification in your Google Account, generating an app password, and pasting it into Cleanfox (IMAP must also be enabled in Gmail settings).
4. Wait for the scan to finish, then work through the sender cards.
5. Before you swipe left on a sender, think about whether you need their old emails. Some users have complained that unsubscribing removed receipts they wanted to keep, so check the delete option on each action.

A practical tip: the app-specific password approach is actually useful for privacy, because you can revoke that one password later and Cleanfox loses access without you changing your main password.

What’s free and what costs money

As of October 2026, Cleanfox is free to use. Store listings describe it as a 100% free service with no ads and no usage limits, and we found no paid tier or in-app subscription in our sources.

That is the main thing to understand about Cleanfox: you are not paying with money. The company’s terms of use say the service is funded by creating anonymised data from transactional emails recovered from your account (order confirmations, e-receipts) and selling it for statistical purposes to businesses. Pricing and business models can change, so check the current listing before installing.

Privacy and data use

This is where Cleanfox gets complicated, and it deserves a careful look rather than a yes/no verdict.

What the company says

Foxintelligence’s position, stated in an official response published by SecNews, is that it has never sold and will never sell personal data to third parties. It says it collects order-confirmation emails to build anonymous, aggregated statistics, that this is not user profiling, and that it only uses transactional and promotional email, never personal messages. NielsenIQ’s Foxintelligence product page describes the resulting product as built by gathering and anonymising millions of consumer e-receipts.

What reporters found

In February 2020, Motherboard reported that several free email apps, Cleanfox among them, were scanning inboxes for purchase data. According to MobileSyrup’s coverage, a Foxintelligence presentation listed clients such as consulting firms Bain & Company and McKinsey & Company. Foxintelligence called the framing false and defamatory, and we found no regulatory finding against the company either way. That reporting is several years old, and practices may have changed since.

What the app store labels say

The developer-supplied privacy label on the App Store lists data that may be linked to your identity, including contact info, user content, browsing history, identifiers, usage data and diagnostics, and lists identifiers as possibly used for tracking. Apple notes these practices can vary by feature and age. One Spanish review also pointed out that the connection grants broad mailbox permissions (read, send and delete).

The Business Dive’s review mentions an option to opt out of anonymised statistical analysis. We couldn’t confirm where that setting lives in the current app, so look in the account settings and the privacy policy linked from the store listing.

Our read: Cleanfox is upfront in its terms about how it makes money, and the data is supposed to be anonymised and aggregated. But you are still giving a market-research company ongoing access to your purchase history. For a personal inbox you don’t mind sharing in that way, it’s a reasonable trade. For a work account or anything covered by your employer’s data policies, we wouldn’t connect it.

Pros and cons

Good Cleanfox alternatives

Gmail’s built-in Manage subscriptions

If you’re on Gmail, try this first. Google rolled out a Manage subscriptions view that lists your active subscriptions by most frequent sender, with how many emails each has sent recently, and lets you unsubscribe in a click. Gmail sends the unsubscribe request for you, and no third party touches your inbox. Per Gmail Help, you’ll find it under the left-hand menu (More > Manage subscriptions on desktop). It is rolling out gradually, so you may not see it yet.

Clean Email

Clean Email is a paid inbox cleaner whose vendor states it does not sell user data, even in aggregated form. It has a free tier limited to cleaning up to 1,000 emails; features like its Unsubscriber and Auto Clean require a paid plan. Its App Store listing showed plans starting at $9.99 per month or $29.99 per year for one account, with a 14-day trial. Some reviewers mention strict refund and auto-renewal terms, so set a reminder if you trial it. Prices may change.

Unroll.me

Unroll.me does a similar job to Cleanfox, but it has the same kind of business model: it is owned by Rakuten, and reporting has described its parent company as selling purchase data for market research. It doesn’t solve the privacy question; it just moves it.

Bottom line

Cleanfox does what it promises: it makes unsubscribing from a decade of newsletters fast and almost fun. The cost is your purchase data, anonymised and sold as statistics. If you use Gmail, start with the built-in Manage subscriptions tool. If you want more power and prefer to pay with money rather than data, look at a paid cleaner. If you decide Cleanfox is worth it, connect it with an app-specific password, check the opt-out setting, and revoke access once your inbox is clean.