Net Trouble Checker

Latency, DNS & LAN Diagnostics

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

No account needed. Check download speed, DNS, response time, and LAN devices, then review results and control saved history in Settings. Understand why your internet is slow, laggy, or stopping, why a website will not open, or why a printer cannot be found. Net Trouble Checker summarizes likely causes and practical next steps in clear results. Designed for home and small-office networks, the app checks the areas related to the symptom you choose: download speed, connection information, the estimated router, external connectivity, DNS, response time, stability, and devices on the local network. Common uses: - Investigate slow internet over Wi-Fi or cellular data - Compare response time, jitter, and loss when calls, video, or games lag - Look for a printer or NAS on the same Wi-Fi network - Check DNS and external connectivity when a website will not open - Share a privacy-redacted result with family, an administrator, or support Key features: - Simple symptom-based diagnosis - Download-speed measurement over Wi-Fi or cellular data, capped at about 8 MB or five seconds - Connection information, estimated router, and IP address display - Response time, loss, and jitter checks - DNS hostname resolution checks - Five individual tools for speed, DNS, LAN devices, Ping, and external connectivity - LAN device list - Clear results, next steps, and text sharing - Optional on-device diagnosis history with individual or bulk deletion - History and privacy controls available in Settings at any time - FAQ, support page, local-network permission guidance, app information, and copied support information - App version captured in generated diagnosis reports Privacy and storage: - No account required - When history saving is on, diagnosis history is stored on the device - Turning history saving off prevents new records; existing records remain until you delete them - Shared reports redact IP addresses, MAC addresses, the estimated router, hostnames/DNS names, and LAN device names - A shared report includes the app version at report creation for support context - A version configured with a verified App Store destination adds a fixed app link after redaction; the link contains no user, device, diagnosis, history, or network identifier - Copied support information includes app and OS details, device type, history-saving status, saved-history count, and ad-removal status - Diagnosis results and history are not sent to the developer's server - Diagnosis results and history are not included in ad requests - On the first ad-supported launch, iOS asks for tracking permission before ads start. Allowing it can enable optional usage sharing when no previous choice exists and lets AdMob use the advertising identifier subject to regional consent. Denying it leaves usage sharing off and requests non-personalized ads. Usage sharing can be stopped in Settings at any time. Analytics events never contain IP addresses, hostnames, diagnosis text, or raw measurements. Limitations: Because of iOS restrictions, MAC addresses, detailed DNS server information, and complete discovery of every LAN device may not be available. The app uses short TCP connections and DNS resolution only as needed for diagnosis. The Ping tool uses five short TCP connections and does not download speed-test data. The slow-internet diagnosis and speed tool download up to about 8 MB or for up to five seconds from a public file, then calculate download Mbps on device from the bytes received and elapsed time. The speed needed depends on the activity, and results vary by location, time, concurrent network activity, network conditions, and device. A device not appearing does not necessarily mean it is broken.

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Refreshed diagnosis progress, results, and tab navigation, and streamlined Tools to five focused checks.

Version 1.0.8

The developer, ELEVENBACK, LIMITED LIABILITY COMPANY, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Larger Text

    • Differentiate Without Color Alone

Information

Seller
  • ELEVENBACK, LIMITED LIABILITY COMPANY
Size
  • 18.5 MB
Category
  • Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English and Japanese
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 ElevenBack
  • Developer Website
  • Privacy Policy