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Is Duplicate Contacts Manager Safe?

Duplicate Contacts Manager privacy label · by Vimal Jain · checked November 2026

  • Nothing linked to you
  • Recently updated
App Privacy label Developer-reported · checked November 1, 2026
Used to track you
0types

None declared

Linked to you
0types

None declared

Not linked to you
3types
Short answer

On the label it is low-risk: Duplicate Contacts Manager collects some data but says none of it is linked to you or used for tracking. None of it falls in Apple's most sensitive categories (health, financial, location, contacts or your own content). In total the label lists 3 data types; 33% of contacts backup apps we checked declare tracking.

At a glance

Duplicate Contacts Manager privacy in one look

Data exposure on the label
Not linked to you
  1. 1
  2. 2
  3. 3
  4. 4

Built only from the developer's App Store label. It describes disclosure, not tested behaviour.

Verdict from the label
Not linked to you

Duplicate Contacts Manager collects some data but says none of it is linked to your identity, and none is used for tracking.

Try it

Did Duplicate Contacts Manager ask for something?

Pick the permission prompt you saw. We compare it with what Duplicate Contacts Manager's developer declared.

It asked me for access to…
Tap a prompt to compare it with the label.
Not on the label

Location is not on Duplicate Contacts Manager's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

Not on the label

User Content is not on Duplicate Contacts Manager's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

Not on the label

Contacts is not on Duplicate Contacts Manager's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

Not declared on the label

Duplicate Contacts Manager declares no tracking, so a tracking prompt would contradict its label. Decline it, and consider reporting the mismatch to Apple.

Not on the label

Health & Fitness is not on Duplicate Contacts Manager's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

A permission is what the app can reach on your iPhone; the label is what the developer says leaves it. They answer different questions.

Line by line

What Duplicate Contacts Manager collects, explained

Data typeWhat it coversWhere to limit it
IdentifiersNot linked to you An account ID, screen name, customer number or a device-level ID such as the advertising identifier. Settings › Privacy & Security › Tracking: turn off Allow Apps to Request to Track, or tap Ask App Not to Track when prompted.
Usage DataNot linked to you What you tap, open and view inside the app, plus which ads you have seen. There is no single iOS switch. Look for an analytics or personalised-ads toggle in the app's own settings.
DiagnosticsNot linked to you Crash logs, launch times, hang rates and energy use. Settings › Privacy & Security › Analytics & Improvements › Share With App Developers controls what Apple passes on; the app's own crash reporting is separate.
Reading the label

What Duplicate Contacts Manager's label means for you

Duplicate Contacts Manager's label has 3 types under “Data Not Linked to You”. A data type can appear in more than one section when it is used for different purposes — for example, identifiers used for both analytics and advertising.

Every type on Duplicate Contacts Manager's label is in the “not linked” section, so the developer says the data is stripped of anything that identifies you before it is used. That is typical of anonymous analytics and crash reporting. Not linked is still collected: the data leaves your phone.

None of the data types fall into the categories most people consider sensitive: health, financial information, precise location, contacts, browsing history or the content you create.

Contacts backup apps upload your whole address book — other people's names, numbers and addresses, not just yours. Check where the backup is stored, whether it is encrypted, and how to delete it from the server.

Among the 126 contacts backup apps in our snapshot with a label, 33% declare tracking, 48% collect data linked to you and 33% say they collect nothing. Duplicate Contacts Manager lists 3 data types, about the same as the average of 2.2 for this group.

Productivity apps tend to collect the work you do in them — documents, notes and files — so User Content is common. The question is whether it syncs to the developer's servers and how it is protected there.

On your iPhone

Settings to check for Duplicate Contacts Manager

  1. 1

    Tracking

    Settings › Privacy & Security › Tracking. If “Allow Apps to Request to Track” is off, apps cannot ask, and they are told to treat you as having declined. You can also turn it off for this app alone.

  2. 2

    Lock the app

    On iOS 18 and later, touch and hold the icon and choose Require Face ID. Anyone who picks up your unlocked phone then needs your face, fingerprint or passcode to open it.

  3. 3

    Notifications

    Settings › Notifications › Duplicate Contacts Manager › Show Previews: When Unlocked keeps message and account details off the Lock Screen.

Cross-app tracking

Does Duplicate Contacts Manager track you?

No tracking declared

There is no “Data Used to Track You” section on Duplicate Contacts Manager's label.

Does Duplicate Contacts Manager track you? Full answer and how to stop it →

iOS 18 and later

Lock Duplicate Contacts Manager behind Face ID

  1. Find Duplicate Contacts Manager on your Home Screen or in App Library.
  2. Touch and hold the icon until the quick-actions menu opens.
  3. Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
  4. Tap Require Face ID again to confirm. Duplicate Contacts Manager now asks for authentication every time it opens.

The lock is an iPhone feature, so it works whether or not Duplicate Contacts Manager has a passcode of its own. It does not change what the app sends to its developer.

From the App Store record

About Duplicate Contacts Manager

DeveloperVimal Jain
App Store categoryProductivity (also Utilities)
Latest version2.0, released July 2026
First releasedDecember 2016
RequiresiOS 16.0 or later
Size8 MB
Age rating12+
Languages18 (AR, CS, DA, NL, EN, FR, DE, EL…)
Bundle IDcom.lps.duplicates

The current version shipped in July 2026. That is recent enough that the label should reflect current practices, but check the App Store page again before relying on it.

Also by Vimal Jain: Contacts Backup Share & Export.

Read with care

What the label cannot tell you

  • A label is self-reported. Apple publishes the developer's answers and can reject apps that misrepresent them, but it does not independently verify what Duplicate Contacts Manager sends.
  • It does not say where data is stored, how long it is kept, whether it is encrypted, or which companies receive it. The privacy policy covers those points.
  • Optional data counts: if a feature lets you add something (a profile photo, a phone number), the type is listed even if you never use the feature.
  • Data handled only on your iPhone is not 'collected', so a no-collection label is compatible with an app that reads your files locally.
  • Third-party sign-in, payment processors and SDKs are supposed to be included, but a label can lag behind a new version.

The question to ask Duplicate Contacts Manager's developer: How do I delete my contacts from their server later?

How it compares

Duplicate Contacts Manager vs similar contacts backup apps

Data types listed on each App Store privacy label
Tracks youLinked to youNot linkedCollects nothing

Fewer types is not automatically safer: a cloud backup app has to collect your files to work. Compare like with like.

Checking another app?

Look up any of our apps in seconds, or put two labels side by side.

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Do it now

Your Duplicate Contacts Manager privacy checklist

Tick what you have done
Tick each step as you do it on your iPhone.

Done. You have applied every control the label points to.

Quick quiz

True or false?

  1. Q1Duplicate Contacts Manager's privacy label says it uses data to track you.
    Right.
    Not quite.

    False: there is no Data Used to Track You section on Duplicate Contacts Manager's label.

  2. Q2Apple tests every app to confirm its privacy label is accurate.
    Right.
    Not quite.

    Labels are self-reported by developers. Apple can reject or remove apps that misrepresent practices, but it does not audit each label.

  3. Q3Duplicate Contacts Manager collects Identifiers.
    Right.
    Not quite.

    True: Identifiers appears on its label, in the Not Linked to You section.

  4. Q4Data “Not Linked to You” is never sent off your iPhone.
    Right.
    Not quite.

    It is collected and sent; the developer says it is de-identified rather than tied to your account or device.

  5. Q5Tapping “Ask App Not to Track” can stop an app from working.
    Right.
    Not quite.

    Apple's rules require apps to work the same whether or not you allow tracking.

Questions people ask

Duplicate Contacts Manager privacy FAQ

Is Duplicate Contacts Manager safe to use?
Based on its App Store privacy label, duplicate Contacts Manager collects some data but says none of it is linked to your identity, and none is used for tracking. Whether that is acceptable depends on what you will store in it. The label is developer-reported, not an independent security test.
Does Duplicate Contacts Manager track you?
No. Duplicate Contacts Manager's label has no Data Used to Track You section.
What data does Duplicate Contacts Manager collect?
Identifiers, usage data and diagnostics. None of it is linked to your identity.
Who makes Duplicate Contacts Manager?
Vimal Jain, according to the App Store. It was first released in December 2016 and the current version is 2.0.
Can I lock Duplicate Contacts Manager with Face ID?
On iOS 18 or later, touch and hold Duplicate Contacts Manager's icon and choose Require Face ID (or Touch ID / Passcode). This is an iPhone feature and works for most downloaded apps, whether or not the app has its own lock. If you don't see the option, update iOS.
How does Duplicate Contacts Manager compare with other contacts backup apps?
Across 126 contacts backup apps with labels in our snapshot, 33% declare tracking and 33% say they collect no data. Duplicate Contacts Manager lists 3 data types against an average of 2.2.
How do I delete my contacts from their server later?
The privacy label cannot answer that. Look for it in Duplicate Contacts Manager's privacy policy or support pages, linked from the App Store listing. Check where the backup is stored, whether it is encrypted, and how to delete it from the server.
How do I delete my data from Duplicate Contacts Manager?
Apps that let you create an account must also let you start account deletion from inside the app (an App Store rule since June 2022). Deleting the app from your iPhone alone does not delete data already sent to the developer.
Facts on this page come from Duplicate Contacts Manager on the App Store, as reported by the developer. Checked 2026-11-01. How we collect data · Report a correction