Privacy, checked
A private quit smoking app with no account, checked against the store labels
"No account" and "no data leaves the device" get treated as one claim. They are two different claims, and both are things you can check yourself before you install anything.
Written by Lee H. Last reviewed 5 August 2026.
Here is the conflict of interest, stated plainly: I am building The Long View, a quit smoking app of my own, and this website exists to support it. A page about which app is the most private is exactly the kind of thing a competing developer has an incentive to slant, so check the sources below yourself. The Long View is not scored against the apps below, because I am the one who built it. It gets its own section near the end, marked clearly as mine.
If you searched for this, what you probably want is simple: you don't want a record of your smoking, how much, how often, how long you've been trying to quit, sitting on somebody's server with your email address attached to it. That's not a paranoid thing to want. Smoking history is health information, quitting is something plenty of people would rather keep to themselves, and "an app on my phone knows this" feels very different from "a company's cloud knows this." The rest of this page is about how to actually get the first one.
What "private" has to break down into
"Private" by itself is just a word a listing puts in its subtitle. It only becomes useful once you turn it into questions you can answer with a yes or no, for any app, including the ones named here:
- Does it require an account to use the core features: an email address, a phone number, or a mandatory sign-in with Apple or Google?
- Does any data leave the device, for any reason, including an optional backup or a mandatory account?
- Is there advertising or a third-party analytics kit bundled in, whether or not you ever see an account prompt?
- What does the app's own store listing disclose, in the App Store's Privacy section or Google Play's Data Safety section, the places a developer is required to state this?
The next few sections go through each of those, using two real listings I checked while writing this as worked examples. Neither is accused of anything here. The point is to show what each check actually looks like, so you can run it yourself on an app this page never mentions.
No account is not the same as no data leaving the device
These get conflated constantly, and they are answers to different questions. "No account" means nobody made you type in an email address or a phone number to start using the app. "No data leaves the device" means the bytes never go anywhere else, by any route, ever. An app can clear the first bar and still fail the second, because backup, crash reporting and analytics can all move data off a phone without ever asking who you are.
Smoke Tracker (Android app, developer Codeas)
- Android
Free, ad-free by its own listing. No account to use it; data is stored locally, with an optional encrypted backup to your own Google Drive.
This is a clean, honest example of the distinction. Its own Play Store description leads with local-first storage and calls out the optional Google Drive backup by name, so nothing here is hidden. No account is required to use it, and data can still leave the device the moment that backup is switched on, because a copy sitting in your Google Drive is data that has left the device, even though nobody ever collected your email address to put it there. Google Play's own Data Safety section for this app, which I read directly, states that it collects app activity, approximate location, device identifiers and diagnostic data, declared for analytics, with no advertising or sale to a third party, and states that it does not offer a way to request deletion of that data. None of that contradicts "no account." It just means "no account" was never a promise that nothing leaves the device, and the two need checking separately.
Reading the App Store's own privacy label
Every iOS app has a Privacy section on its own product page, below the description, listing categories the developer has declared under Apple's required nutrition-label format: Data Not Collected, Data Linked to You, Data Not Linked to You, and Data Used to Track You (the category tied to the App Tracking Transparency prompt, the one that asks permission to track you across other companies' apps and websites). The developer reports it, and a developer who misstates it is violating the App Store's own guidelines, so it carries more weight than a tagline and it takes about ten seconds to check on any app before you install it.
Smoke Tracker (iOS app, developer Ivan Terekhin)
- iOS
Free core features, with an optional paid subscription. No account or sign-up, by the app's own description.
This is a different app from the Android one above, from an unrelated developer, that happens to share the same name; more on that below. Its own App Store description leads with almost exactly the pitch this page is about: your journal and data stay on your device, no account, no sign-up, start instantly, and, in its own words, "anonymous analytics only, nothing sold." That last line is already more candid than most listings bother to be. Checking the App Store's own Privacy section for this same listing shows Purchases, an Identifier described as a User ID, and Usage Data described as Product Interaction, all listed under Data Linked to You for an Analytics purpose. That is consistent with what the description says, an identifier tied to anonymous usage analytics with no login, and it is a more precise statement than "anonymous analytics" on its own, since the label is explicit that an identifier is linked to your data even though no account exists. That precision is exactly why the label is worth reading even when a developer is already being upfront in its own description.
Reading Google Play's Data Safety section yourself
Android's equivalent lives in a Data Safety section on the app's own Play Store listing, also filled in by the developer and unverified by Google. It states plainly whether any data is shared with other companies, then lists what is collected, broken into categories such as location, personal info, app activity, device or other IDs, and app diagnostics, each tagged with why it is collected (app functionality, analytics, advertising, and so on), and finally a short list of security practices: whether data is encrypted in transit, whether you can ask for it to be deleted, and similar. The Smoke Tracker (Android) example above is what that section looks like in practice: no third-party sharing declared, several categories collected for analytics, and no deletion mechanism offered. Reading it takes less time than reading a full privacy policy, and it is the same format on every app in the store, so it is worth the habit regardless of which app you end up choosing.
Advertising and third-party analytics
A quit smoking app can clear "no account" and still run on ad revenue, which usually means a third-party advertising kit is bundled in alongside whatever the app tracks about your quitting. EasyQuit, discussed on the best quit smoking apps guide as a free, ad-supported, no-account option, is a good example to check: its own App Store Privacy section lists Identifiers and Usage Data under Data Used to Track You, the App Tracking Transparency category, and lists Third-Party Advertising, specifically a device ID and advertising data, under Data Not Linked to You. That is the label version of "supported by ads," and it is worth knowing that a no-account app and an ad-funded app are not opposites. They are two separate questions with two separate answers, again both printed on the same page.
Where Smoke Tracker fits, and a naming coincidence worth knowing about
Of everything I checked for this page, Smoke Tracker markets the no-account, on-device position harder and more specifically than anything else in the category, and its own published description backs that up on both platforms: local storage, no account, no sign-up, described plainly. Worth knowing before you search for it: it is two unrelated apps, one on each store, from two different developers, that happen to share a name and a nearly identical pitch. That is either a coincidence or evidence that "no account, local-first" is a real market position more than one developer has decided is worth building for. Either way, if you are choosing between a phone and a tablet running different platforms, check the developer's name in the listing as well as the app's title, since a store search will happily return an unrelated app that shares a name with the one you meant.
What The Long View is built for
Here is the design intent for The Long View, disclosed as exactly that: an intent, which is a weaker thing than a store label you can check for yourself. It asks for no account, no email address and no payment details inside the app itself. Your entries and your photo stay on your device. Without a subscription they never leave it at all. With one, they can follow you between an iPhone, an Android phone and a PC, and the way that works is the part worth reading: everything is encrypted on your own device first, with a key made on your device that is never sent to the developer, so what is stored is opaque bytes and the developer cannot read your history. The key is shown to you as a recovery code, which is what lets a second device in and is the only thing that can. Android's Auto Backup also restores your data to a new Android device from your own Google account, which is backup and restore for a new device. Full detail is on the privacy page. Hold it to the same standard as every other app on this page: check the store label yourself, this one included.
Check the store label yourself, this one included.
What you can already check today
Whatever the app eventually does, the calculators on this website do their math in your own browser right now, and the numbers you type are never transmitted. You do not have to trust me on that: open your browser's network inspector while using the quit smoking calculator, change the inputs, and you will see the page send no request carrying them.
Being straight about the rest, since this page is about checking claims: the site does load one analytics script, Microsoft Clarity, so you will see requests to clarity.ms in that same inspector. It records clicks and scrolling. It cannot record what you type, because Clarity masks input contents in every mode and that cannot be turned off. The privacy page says so plainly, and a content blocker stops it without changing how anything here works.
Nothing on this page diagnoses, treats or prevents any condition, and none of it is medical advice. Talk to a doctor or a quitline about stopping smoking. In the US, that is 1-800-QUIT-NOW.
Keep reading
Where to go next
The best quit smoking apps, compared honestly
Seven apps by what each is good at, including where they beat this one.
A quit smoking app without a subscription
What is genuinely free, what is a locked demo, and where quitSTART fits.
Quit smoking calculator
The years smoking has likely cost you, and the years quitting returns. Start here.
Back to guides, read the privacy page for exactly what The Long View does and does not do, or see how these same apps compare on things besides privacy on the best quit smoking apps guide.