None declared
It depends on how you feel about tracking: Private Message Box declares data used to track you. None of it falls in Apple's most sensitive categories (health, financial, location, contacts or your own content). In total the label lists 1 data type; 14% of secure messengers we checked declare tracking.
Private Message Box privacy in one look
- 1Collects nothing
- 2Not linked
- 3Linked
- 4Tracks you
Built only from the developer's App Store label. It describes disclosure, not tested behaviour.
Private Message Box's developer reports using usage data to track you across other companies' apps and websites.
Did Private Message Box ask for something?
Pick the permission prompt you saw. We compare it with what Private Message Box's developer declared.
Location is not on Private Message Box'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.
User Content is not on Private Message Box'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.
Contacts is not on Private Message Box'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.
Private Message Box declares data used to track you, so expect the “Allow to track?” prompt. Tap Ask App Not to Track; the app must keep working without it.
Health & Fitness is not on Private Message Box'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.
What Private Message Box collects, explained
| Data type | What it covers | Where to limit it |
|---|---|---|
| Usage DataUsed to track youNot 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. |
What Private Message Box's label means for you
Private Message Box's label has 1 type under “Data Used to Track You”, 1 type 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.
Tracking is the declaration that most separates apps. It means usage data from Private Message Box can be combined with data from other companies to target or measure ads, or shared with data brokers. On iOS 14.5 and later, the app must ask your permission before tracking you through the advertising identifier; answering “Ask App Not to Track” blocks that identifier and tells the developer you have declined.
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.
Messengers see who you talk to as well as what you say. Even with end-to-end encrypted content, contact lists and metadata can be collected and linked to you. Check whether contact upload is optional, whether backups are encrypted too, and whether disappearing messages exist.
Among the 172 secure messengers in our snapshot with a label, 14% declare tracking, 54% collect data linked to you and 29% say they collect nothing. Private Message Box lists 1 data type, fewer than the average of 2.8 for this group.
Social apps are built around identity and contacts, so data linked to you is nearly universal. Tracking and contact upload are the settings worth checking.
Settings to check for Private Message Box
- 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
Contacts
Settings › Privacy & Security › Contacts. Limited Access shares only the people you select instead of your whole address book.
- 3
Microphone & camera
Settings › Privacy & Security › Microphone and Camera. The orange and green dots in the status bar show when either is in use.
- 4
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.
- 5
Notifications
Settings › Notifications › Private Message Box › Show Previews: When Unlocked keeps message and account details off the Lock Screen.
Does Private Message Box track you?
Usage data. Apple defines tracking as linking data from this app with data from other companies' apps, websites or offline sources for targeted advertising or ad measurement, or sharing it with a data broker.
Does Private Message Box track you? Full answer and how to stop it →
Lock Private Message Box behind Face ID
- Find Private Message Box on your Home Screen or in App Library.
- Touch and hold the icon until the quick-actions menu opens.
- Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
- Tap Require Face ID again to confirm. Private Message Box now asks for authentication every time it opens.
The lock is an iPhone feature, so it works whether or not Private Message Box has a passcode of its own. It does not change what the app sends to its developer.
About Private Message Box
| Developer | Vartit Technology Private Limited |
| App Store category | Social Networking |
| Latest version | 1.6.64, released August 2026 |
| First released | September 2014 |
| Requires | iOS 13.0 or later |
| Size | 50 MB |
| Age rating | 17+ |
| Languages | 6 (NL, EN, FR, IT, KO, PT) |
| Bundle ID | com.techinnovativesystem.PrivateSmsBox |
The current version shipped in August 2026. That is recent enough that the label should reflect current practices, but check the App Store page again before relying on it.
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 Private Message Box 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 Private Message Box's developer: Is the message content end-to-end encrypted by default, including backups?
Private Message Box vs similar secure messengers
- Secretly
- Wire
- Wizpr
- GetSafeNow
- Private Message Box (this app)
- Session
- Air
- xPal Ultra Secure Messenger
Fewer types is not automatically safer: a cloud backup app has to collect your files to work. Compare like with like.
Look up any of our apps in seconds, or put two labels side by side.
Apps similar to Private Message Box
All secure messengers → Who tracks you? A–Z → Apps that collect usage data → Privacy label decoder →
Your Private Message Box privacy checklist
Done. You have applied every control the label points to.
True or false?
- Right.Not quite.
True: it lists usage data under Data Used to Track You.
- 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.
- Right.Not quite.
True: Usage Data appears on its label.
- Right.Not quite.
It is collected and sent; the developer says it is de-identified rather than tied to your account or device.
- Right.Not quite.
Apple's rules require apps to work the same whether or not you allow tracking.