None declared
Mostly a question of trust: OneMail collects data linked to you but declares no tracking. The sensitive items are location. In total the label lists 5 data types; 28% of secure email apps we checked declare tracking.
OneMail 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.
OneMail collects 5 data types tied to your identity but declares no tracking.
Did OneMail ask for something?
Pick the permission prompt you saw. We compare it with what OneMail's developer declared.
OneMail lists Location on its label, linked to you. Choose While Using and turn off Precise Location if the feature works without it.
User Content is not on OneMail'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 OneMail'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.
OneMail declares no tracking, so a tracking prompt would contradict its label. Decline it, and consider reporting the mismatch to Apple.
Health & Fitness is not on OneMail'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 OneMail collects, explained
| Data type | What it covers | Where to limit it |
|---|---|---|
| LocationSensitiveLinked to you | Where your phone is, either precisely (street level) or approximately (city or area). | Settings › Privacy & Security › Location Services: choose Never or While Using, and turn off Precise Location if the app does not need it. |
| Contact InfoLinked to you | Your name, email address, phone number or postal address. | Use Sign in with Apple with Hide My Email where offered, and check the app's account and marketing preferences. |
| IdentifiersLinked 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 DataLinked 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. |
| DiagnosticsLinked to youNot 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. |
What OneMail's label means for you
OneMail's label has 5 types under “Data Linked to 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.
OneMail declares no tracking, which means the developer says it does not combine your data with other companies' data for advertising or sell it to data brokers. The data linked to you — location, contact info, identifiers, usage data and diagnostics — is still tied to your identity, typically through an account, and is covered by the developer's privacy policy and retention rules.
The items that deserve the most attention are location. Location history reveals home, work and routines. Precise location deserves the most scrutiny.
Email apps see every message and contact. Third-party mail clients may route mail through their own servers to offer features like push or AI summaries. Check whether the client connects to your provider directly or stores your mail on its servers.
Among the 141 secure email apps in our snapshot with a label, 28% declare tracking, 60% collect data linked to you and 23% say they collect nothing. OneMail lists 5 data types, more than the average of 2.9 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.
Settings to check for OneMail
- 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
Location
Settings › Privacy & Security › Location Services › OneMail. Choose While Using or Never, and switch off Precise Location if a city-level answer is enough.
- 3
Sign-in
When creating an account, Sign in with Apple can give the app a relay address from Hide My Email instead of your real one.
- 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 › OneMail › Show Previews: When Unlocked keeps message and account details off the Lock Screen.
Does OneMail track you?
There is no “Data Used to Track You” section on OneMail's label.
Lock OneMail behind Face ID
- Find OneMail 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. OneMail now asks for authentication every time it opens.
The lock is an iPhone feature, so it works whether or not OneMail has a passcode of its own. It does not change what the app sends to its developer.
About OneMail
| Developer | Nouvelware SARL |
| App Store category | Productivity (also Utilities) |
| Latest version | 1.7.4, released July 2024 |
| First released | July 2019 |
| Requires | iOS 13.0 or later |
| Size | 26 MB |
| Age rating | 4+ |
| Languages | 1 (EN) |
| Bundle ID | com.nouvelware.mailapp |
The current version shipped in July 2024, 2 years before our snapshot. Apps that are not updated may not support newer iOS privacy controls, and an abandoned app will not get security fixes.
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 OneMail 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 OneMail's developer: Does my email pass through the app maker's servers?
OneMail vs similar secure email apps
- Newton Mail
- OneMail (this app)
- InstAddr
- NoPhone NoEmail
- Spike
- TypeApp Email
- Swisscows Email
- Swismail
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 OneMail
All secure email apps → Who tracks you? A–Z → Apps that collect location → Privacy label decoder →
Your OneMail privacy checklist
Done. You have applied every control the label points to.
True or false?
- Right.Not quite.
False: there is no Data Used to Track You section on OneMail's label.
- 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: Location 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.