Privacy Policy

🔒 Our Core Promise

Utilio is a local-first utility app. Your personal data—notes, history, and preferences—stays on your device. We use third-party advertising SDKs to display ads, and we request your permission before any tracking occurs. No account system is required.

All data created by the app—calculator history, encrypted notes, palettes, cached exchange rates, favorites, and custom ordering—is stored only in your device's app sandbox and never leaves your device. Advertising and tracking data is handled by our ad partners under their own privacy policies, as described in the sections below.

🛠 App Features

Utilio provides the following tools, and all processing happens locally on your device:

Scientific Calculator

Unit Converter

Currency Converter

Percentage Tools

Spirit Level

Protractor

Compass

Decibel Meter

Flashlight

Magnifier

Color Picker

QR Code Tool

Image Compressor

Encoding Tools

Password Generator

Timer

World Clock

Date Calculator

Random Picker

Quick Calculator

🔐 Permission Use

Utilio requests system permissions only when you actively use the related features, and data never leaves your device.

📷

Camera

Used for QR scanning, the protractor camera mode, magnification, and color picking. Camera frames are only used for real-time display and interaction.

🎤

Microphone

Used only for real-time noise level measurement in the decibel meter. Audio is processed in memory and discarded immediately.

📍

Location Services

Used only to display compass orientation and coordinates. Location information is shown on screen in real time and is never stored or shared.

🖼

Photo Library

Used when you choose a photo for color sampling or save compressed images or generated QR codes to your album.

👤

Device Passcode / Note Password

Used to unlock encrypted secure notes. Password verification is performed locally, and hashes are stored in the device Keychain with ThisDeviceOnly access.

📡

App Tracking Transparency

Used to request your permission for ad tracking. If granted, advertising SDKs may use your device advertising identifier (IDFA) to deliver more relevant ads. If denied, you will still see ads, but they will not be personalized based on tracking.

💾 Storage and Encryption

Local Storage

The following information is stored locally in your device’s app sandbox using UserDefaults or Core Data:

Calculator history
Cached exchange rates for offline use
Saved color palettes
Home screen tool order and favorites
Appearance preferences
Note password hashes stored in Keychain

Encrypted Notes

Secure notes are protected using AES-256-GCM encryption. The encryption key is generated on first use and stored in the device Keychain with the following protections:

Protected with kSecAttrAccessibleWhenUnlockedThisDeviceOnly
Restricted to this device only
Never synchronized to iCloud
Stored as SHA-256 hashes for note passwords

Deleting Data

Deleting the Utilio app permanently removes all local data, including encrypted notes, keys, history, and preferences. This action cannot be undone.

🌐 Network Access

Utilio uses network access for the following purposes:

Currency conversion — Downloads the latest exchange rates when online and caches them locally for offline use. Data contains only currency codes and values; no personal data is sent.
Advertising — The Appodeal ad SDK communicates with its servers to fetch and display ads. See the Advertising and Tracking sections below for details.

📊 Advertising

Utilio displays ads through the Appodeal advertising SDK, which mediates ads from multiple third-party ad networks including but not limited to AppLovin, BidMachine, and Bidon. When ads are loaded, the following may occur:

Ad networks may collect device information such as device model, operating system version, IP address, and an advertising identifier (IDFA, if you grant tracking permission).
This information is used by ad networks to serve and measure ad impressions, and may be used for ad frequency capping, fraud prevention, and aggregated analytics.
Ad networks may use this data to show you more relevant ads if you have granted tracking permission.
Each ad network processes data under its own privacy policy. We do not control how third-party ad networks use the data they collect.

Third-Party Ad Partners

The following ad SDKs are integrated in Utilio. Each link goes to the partner's privacy policy:

Appodeal — Privacy Policy
AppLovin — Privacy Policy
BidMachine — Privacy Policy

Note: If you have not granted tracking permission (App Tracking Transparency), the IDFA is set to all zeros and ad networks cannot use it for cross-app tracking. Ads will still be displayed, but with reduced personalization.

📡 Tracking

Utilio complies with Apple's App Tracking Transparency (ATT) framework. Upon first launch, the app will request your permission to track. Tracking means linking information collected about you from this app with information collected by other companies' apps and websites for targeted advertising or advertising measurement purposes.

What Happens If You Allow Tracking

Your device's advertising identifier (IDFA) is shared with advertising partners.
Ad networks may use this identifier to deliver more relevant ads and measure ad performance across apps.

What Happens If You Deny Tracking

Your IDFA is not shared with advertising partners (set to zeros).
You will still see ads, but they will be less personalized.
No cross-app tracking will occur.

Managing Your Choice

You can change your tracking preference at any time by going to Settings > Privacy & Security > Tracking on your iPhone and toggling Utilio on or off.

🚫 What We Do Not Do

We do not collect your name, email, phone number, or other personal identifiers directly.
We do not upload your photos, notes, calculator history, or other personal content to any server.
We do not track your precise location.
We do not read your contacts, messages, or other app data.
We do not include social sharing features.
We do not require account registration or sign-in.
We do not track you across other apps and websites unless you explicitly grant tracking permission via App Tracking Transparency.

📱 Child Privacy

Utilio is not directed at children under 13, and we do not intentionally collect personal information from children. Because the app does not collect personal data, it is safe for children to use. If you are a parent and have concerns, please contact us using the information below.

🔄 Policy Updates

We may occasionally update this Privacy Policy. The latest version will be posted on this page and reflected in the app under Settings > Privacy & Data.

If there are material changes, we will clearly notify you in app release notes.

✉️ Contact Us

If you have questions, suggestions, or feedback about this policy or how Utilio handles data, please contact us:

Email: GordinierGriffy0515@outlook.com
Support page: Visit Support

We will respond within 48 hours.