Is Margins safe to use?

Margins integrates 2 third-party SDKs spanning analytics and crash-reporting. It collects data linked to your identity including Contact Info, Contacts, User Content, and Identifiers and 2 more categories. It does not include any advertising or attribution SDKs. Whether this is acceptable depends on your personal privacy preferences.

What permissions does Margins need?

Margins requests 3 iOS permissions: Camera, Save to Photo Library, and Local Network.

How many SDKs does Margins have?

Margins integrates 2 third-party SDKs. 1 for analytics and 1 for crash reporting. None are for advertising or attribution.

Does Margins access your camera?

Margins requests access to your camera. The developer says this is for "Margins needs camera access to recognize books". These permissions are only active when you grant them in iOS Settings.

Does Margins run in the background?

Yes. Margins registers 1 background mode, which means it can perform certain tasks when you're not actively using it.

What are some alternatives to Margins?

Other book apps include Noel Novel , Freewave , AnyStories , ReadAnywhere , FanFiction Reader Pro , and Audible . Each app takes a different approach to book and varies in its data collection and SDK usage.

Book · Privacy report

Margins: Book Tracker

Free · ★4.9 · Paratext Inc.

Is Margins safe?

It collects a lot of your data itself.

Our take. Its own App Store privacy label declares Margins links 6 categories of your data to your identity, including contact info, contacts, user content and identifiers. That collection, more than any outside tracker, is the story here.

Privacy footprint · vs 82 bookModerate

Trackers from other companies0 · none

typical book: 5

Data the app links to you6 types · some

typical book: 3 · from its own privacy label

What it collects about you

Margins links 6 categories of your data to you.

From the developer's own App Store privacy label. These are the kinds of data Margins ties to your identity.

Contact InfoContactsUser ContentIdentifiersUsage DataDiagnostics

Who else is inside

Few or no outside trackers.

We found no advertising, analytics, or attribution SDKs from other companies in Margins.

How it compares

Where it sits among book.

Every one of these apps we have scanned, on the two measures above: third-party trackers it carries (across) and data it links to you on its own label (up). Toward the top right is more invasive.

Each dot is one book app. Margins sits high on the left: it collects a lot itself but uses few outside trackers.

The evidence

What it's built from.

All 2 SDKs in the app, grouped by what they are for. None are third-party trackers.

1crash reporting

1push & messaging

0 of the 2 are third-party trackers. One is a push-notification SDK that delivers notifications, rather than tracking you across apps. The rest are the app's own code and standard open-source building blocks.

Show the full SDK list

Push & messaging1 · notifications

OneSignal

Standard libraries0 · on-device

The app's own code plus open-source interface, storage and networking libraries.

How we know this

Counterspy downloads the app from the App Store and statically analyzes its compiled binary. Embedded SDKs are matched against a signature database and resolved to the company that operates each. We also read the developer's App Store privacy label, which lists the data the app says it collects and links to you. We do not run the app or intercept its traffic, so we report capabilities present in the code and the developer's own disclosures, not proven transmission. We assess privacy and data collection, not malware, security flaws, or developer intent. Reports are automated and never edited for payment. Scan v2026.03.27, 2026-04-04.

Third-party trackers are advertising, analytics and attribution SDKs detected by static signature matching. Presence shows a capability is compiled in, not that it ran or transmitted data.
"Data the app links to you" is the count of data categories the developer declares as Data Linked To You in its App Store privacy label. Labels are self-reported and not verified by Apple.
Comparison across the 82 book in our corpus. Trackers: median 5. Data linked to you: median 3.