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Is Hoi Poi email Safe?

Hoi Poi email privacy label · by Hayato Shimizu · checked November 2026

  • Tracks you
  • Collects location
  • Not updated in 2+ years
App Privacy label Developer-reported · checked November 1, 2026
Used to track you
4types
Linked to you
4types
Not linked to you
0types

None declared

Short answer

It depends on how you feel about tracking: Hoi Poi email declares data used to track you. The sensitive items are location. In total the label lists 4 data types; 28% of secure email apps we checked declare tracking.

At a glance

Hoi Poi email privacy in one look

Data exposure on the label
Used to track 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
Tracks you

Hoi Poi email's developer reports using location, identifiers, usage data, diagnostics to track you across other companies' apps and websites.

Try it

Did Hoi Poi email ask for something?

Pick the permission prompt you saw. We compare it with what Hoi Poi email's developer declared.

It asked me for access to…
Tap a prompt to compare it with the label.
Matches the label

Hoi Poi email lists Location on its label, including for tracking. Choose While Using and turn off Precise Location if the feature works without it.

Not on the label

User Content is not on Hoi Poi email'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 Hoi Poi email'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.

Expected — and you can decline

Hoi Poi email 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.

Not on the label

Health & Fitness is not on Hoi Poi email'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 Hoi Poi email collects, explained

Data typeWhat it coversWhere to limit it
LocationSensitiveUsed to track youLinked 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.
IdentifiersUsed to track youLinked 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 DataUsed to track youLinked 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.
DiagnosticsUsed to track youLinked 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 Hoi Poi email's label means for you

Hoi Poi email's label has 4 types under “Data Used to Track You”, 4 types under “Data 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 location, identifiers, usage data, diagnostics from Hoi Poi email 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.

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. Hoi Poi email lists 4 data types, more than the average of 2.9 for this group.

Utilities range from calculators to VPNs, so their labels vary more than any other category. A simple tool that collects identifiers and usage data for tracking is a sign of advertising SDKs.

On your iPhone

Settings to check for Hoi Poi email

  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

    Location

    Settings › Privacy & Security › Location Services › Hoi Poi email. Choose While Using or Never, and switch off Precise Location if a city-level answer is enough.

  3. 3

    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.

  4. 4

    Notifications

    Settings › Notifications › Hoi Poi email › Show Previews: When Unlocked keeps message and account details off the Lock Screen.

Cross-app tracking

Does Hoi Poi email track you?

Yes — 4 data types

Location, identifiers, usage data and diagnostics. 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 Hoi Poi email track you? Full answer and how to stop it →

iOS 18 and later

Lock Hoi Poi email behind Face ID

  1. Find Hoi Poi email 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. Hoi Poi email now asks for authentication every time it opens.

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

Lock or hide Hoi Poi email: step-by-step guide →

From the App Store record

About Hoi Poi email

DeveloperHayato Shimizu
App Store categoryUtilities (also Productivity)
Latest version1.1.4, released November 2023
First releasedJanuary 2018
RequiresiOS 12.0 or later
Size17 MB
Age rating4+
Languages33 (AR, CA, HR, CS, DA, NL, EN, FI…)
Bundle IDnet.hayaya.DisposableEmail

The current version shipped in November 2023, 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.

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 Hoi Poi email 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 Hoi Poi email's developer: Does my email pass through the app maker's servers?

How it compares

Hoi Poi email vs similar secure email 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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All secure email apps → Who tracks you? A–Z → Apps that collect location → Privacy label decoder →

Do it now

Your Hoi Poi email 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. Q1Hoi Poi email's privacy label says it uses data to track you.
    Right.
    Not quite.

    True: it lists location, identifiers, usage data and diagnostics under Data Used to Track You.

  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. Q3Hoi Poi email collects Location.
    Right.
    Not quite.

    True: Location appears on its label.

  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

Hoi Poi email privacy FAQ

Is Hoi Poi email safe to use?
Based on its App Store privacy label, hoi Poi email's developer reports using location, identifiers, usage data, diagnostics to track you across other companies' apps and websites. Whether that is acceptable depends on what you will store in it. The label is developer-reported, not an independent security test.
Does Hoi Poi email track you?
Yes. Its label lists location, identifiers, usage data and diagnostics under Data Used to Track You. You can decline at the iOS tracking prompt.
What data does Hoi Poi email collect?
Location, identifiers, usage data and diagnostics. Of these, location, identifiers, usage data and diagnostics are linked to your identity.
Who makes Hoi Poi email?
Hayato Shimizu, according to the App Store. It was first released in January 2018 and the current version is 1.1.4.
Can I lock Hoi Poi email with Face ID?
On iOS 18 or later, touch and hold Hoi Poi email'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.
How does Hoi Poi email compare with other secure email apps?
Across 141 secure email apps with labels in our snapshot, 28% declare tracking and 23% say they collect no data. Hoi Poi email lists 4 data types against an average of 2.9.
Does my email pass through the app maker's servers?
The privacy label cannot answer that. Look for it in Hoi Poi email's privacy policy or support pages, linked from the App Store listing. Check whether the client connects to your provider directly or stores your mail on its servers.
How do I delete my data from Hoi Poi email?
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 Hoi Poi email on the App Store, as reported by the developer. Checked 2026-11-01. How we collect data · Report a correction