App rankings·14 min read·40+ apps installed·Updated June 2026
The best privacy & security apps for iPhone in 2026
Four jobs, four winners. We ranked encrypted notes apps, Safari ad and tracker blockers, password managers and private browsers on what they actually protect — not on their marketing.
✓Reviewed and re-checked in June 2026 across more than 40 installed apps.
Most "privacy" app lists are reworded press releases. This one is not. We installed every app, set up its encryption the way a normal person would, and asked one blunt question per category: when something goes wrong at the company, what happens to your data? Where an app removes the company from the equation entirely — no account, no server, nothing to breach — it scored higher. Two of the winners below, Shell Notes and AdLocker, are ours; we flag that on the card and let the criteria speak for themselves.
Encrypted notes apps, side by side
App
Fully offline
No account
Open source
End-to-end encrypted
Free to use
Shell Notes
Yes
Yes
Partial
Yes
Yes
Standard Notes
No
No
Yes
Yes
Partial
Notesnook
Partial
No
Yes
Yes
Partial
Joplin
Yes
Yes
Yes
Partial
Yes
Bear
Partial
No
No
No
No
Apple Notes
Partial
No
No
Partial
Yes
Partial means it depends on a setting or a paid tier. Shell Notes lists "partial" on open source because the app is closed even though the cryptography it uses is open and audited — we would rather mark that honestly than round it up. Apple Notes encrypts end-to-end only for individually locked notes, not your whole library.
Encrypted notes
Best encrypted notes app
A notes app is a diary, a password scratchpad, a draft folder and a code snippet box all at once. The question that decides this category is simple: if the company behind the app got breached, subpoenaed, or sold tomorrow, could anyone read what you wrote? We weighted true on-device encryption and "no account to compromise in the first place" above feature count.
1
Shell Notes Our pick · in-house app
Encrypted notes · offline
A
9.3/10
A local-only notes and code editor that encrypts everything at rest with AES-256-GCM, keyed off a passphrase only you know. There is no cloud, no account and no recovery path — which is exactly the point. It reads like a developer tool: Markdown plus syntax highlighting for JavaScript, Python, Shell, JSON and more, eleven monospace typefaces, folders, pinning and full-text search.
Encryption
AES-256-GCM
Account
None required
Sync
None — on device
Price
Free
Strengths
Real AES-256-GCM encryption on audited open-source crypto (@noble), keyed via PBKDF2
Nothing to breach: no account, no email, no server, no analytics
Markdown + code highlighting and 11 mono fonts make it usable as a daily editor
Face ID app-lock; export your whole vault to JSON when you choose
Watch-outs
No recovery by design — forget the passphrase and the notes are gone
No cross-device sync; this is a single-device vault, not a Notion replacement
The app itself is closed-source (the cryptography it relies on is open and audited)
Get Shell Notes →Verdict: The strongest "my notes never leave this phone" option we tested, and it is free. Pick it if privacy is the feature you actually want.
On iOS, ad blockers work through Safari content-blocker extensions — the app hands Safari a list of rules and gets out of the way, so it never sees your browsing. We judged each one on how much it actually removed, how often the blocklists update, whether it stops trackers (not just banners), and whether it slowed pages down.
1
AdLocker Our pick · in-house app
Ad & tracker blocker · Safari
A
8.9/10
A Safari content blocker that strips banners, pop-ups and the trackers that follow you between sites, with weekly blocklist updates and an extra layer that warns on known phishing and malware domains. Because it runs as a native content blocker, the app itself never sees the pages you visit — Safari applies the rules locally.
Type
Safari content blocker
Blocks
Ads · trackers · phishing
Lists
Updated weekly
Price
Free
Strengths
Removes banners and pop-ups and the cross-site trackers behind them, not just visible ads
Extra phishing/malware domain protection on top of plain ad blocking
Content-blocker design means it never receives your browsing history
Free, with a clean one-screen setup
Watch-outs
Safari-only — it cannot touch ads inside other apps or in-app browsers
Heavy custom whitelisting is simpler in some paid competitors
No element picker to hide arbitrary page parts by hand
Get AdLocker →Verdict: The easiest "install it and Safari gets quiet" pick, and free. For most people that is the whole job done.
Reusing one password is the single most common way ordinary people get hacked. A manager fixes that by generating and storing a different strong password for every site, locked behind one vault key. Here we hand the category to a third party on purpose — we do not make a password manager, and it would be dishonest to crown one we did. We weighted an independent security audit, end-to-end encryption and price.
1
Bitwarden
Password manager · open-source
A
9.2/10
Open-source, independently audited, and genuinely usable for free across unlimited devices. Your vault is end-to-end encrypted; Bitwarden the company stores only ciphertext. It handles passwords, passkeys and 2FA codes, and you can self-host the server if you want to trust no one but yourself.
Encryption
E2E (AES-256)
Audit
Independent, public
Free tier
Unlimited devices
Source
Open
Strengths
Real end-to-end encryption with regular published security audits
The free tier is actually enough for most individuals
Open-source clients and an optional self-hosted server
Stores passkeys and TOTP 2FA alongside passwords
Watch-outs
The interface is functional rather than beautiful
Self-hosting is powerful but not for beginners
Account-based by nature — you are trusting a server with your ciphertext
View on App Store ↗Verdict: The honest default for almost everyone: audited, end-to-end encrypted, and free. Start here.
"Private mode" in a normal browser only stops your own device from saving history — sites and ad networks still track you. A privacy browser blocks that tracking by default. On iOS every browser is required to use Apple's WebKit engine, so the differences come down to defaults, fingerprinting resistance and how little data the maker collects. We do not make a browser either, so this category goes to a third party.
1
Brave
Private browser · blocks trackers
A-
8.8/10
A full browser that blocks ads, trackers and fingerprinting attempts out of the box, with no setup. It keeps the conveniences people actually want — tabs, sync, password autofill — while stripping the surveillance most browsers ship with. A solid one-app answer for people who will not install a separate content blocker.
Engine
WebKit (iOS)
Blocks
Ads · trackers · fingerprinting
Default
Private by default
Price
Free
Strengths
Blocks ads and trackers with zero configuration
Fingerprinting protection, not just cookie blocking
Familiar full-browser features (tabs, sync, autofill)
Free, from a company whose product is privacy rather than ads
Watch-outs
Optional crypto/rewards features clutter the app for some users
WebKit on iOS limits how far any browser can go
Sync means another account if you turn it on
View on App Store ↗Verdict: The easiest private browser to switch to cold. Pair it with a content blocker and Safari for the strongest setup.
We install and live with each app. Every app here was set up on a real iPhone and used for ordinary tasks, not judged from screenshots.
We check the encryption claim against the behaviour. "Encrypted" means different things; we note whether it is end-to-end, at-rest only, or just a lock screen, and whether a company server ever holds readable data.
We count what is removed, not what is promised. For blockers we compare pages with and without the app; for notes apps we check what a breach would actually expose.
We weigh "nothing to breach" highly. An app with no account and no server cannot leak what it never collects, so local-only designs earn credit.
We disclose our own apps. Shell Notes and AdLocker are built by the developer who funds this site. They are ranked on the same criteria and labelled wherever they appear.
Frequently asked questions
What is the most private notes app for iPhone?+
For pure privacy, a local-only encrypted app like Shell Notes is the strongest choice, because it keeps notes on the device with AES-256-GCM encryption and has no account or server to breach. If you need sync across devices, Standard Notes and Notesnook offer end-to-end encrypted syncing instead.
Do I really need an ad blocker on iPhone?+
If you browse in Safari, yes — a content blocker like AdLocker removes ads and the cross-site trackers behind them, which speeds up pages and cuts how much of your behaviour is recorded. It cannot block ads inside other apps, only in Safari.
Are these privacy apps free?+
Many of the best are. Shell Notes, AdLocker, Brave and Bitwarden’s core features are free; others such as 1Password are subscription-only. We note the price model on every card.
Is a paid privacy app safer than a free one?+
Not automatically. What matters is the design: end-to-end or on-device encryption, an independent audit, and how little data the maker collects. A free, local-only app can be more private than an expensive cloud one.
Why are two of the apps made by this site’s owner?+
Transparency matters more than pretending otherwise. Shell Notes and AdLocker are ours; we mark them clearly and rank them on the same criteria as everything else. The categories we do not make apps for go to third parties like Bitwarden and Brave.
Independent & transparent. iPhone Privacy Hub is reader-supported; some outbound App Store links may earn a small commission at no cost to you. Two apps we review — Shell Notes and AdLocker — are built by the developer who funds this site, and we say so on every page they appear. Rankings are our own editorial judgment based on the criteria in How we test. No app can pay for a higher placement.
Standard Notes
Notesnook
Joplin
Bear
