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Net Trouble Checker: WiFi Test
Ping, DNS & LAN Diagnostics
Free · In‑App Purchases
Use symptom-based diagnostics and focused tools to check internet access, DNS, response times, and LAN devices, then see what to try next.
When internet is slow, a site will not open, or a local device is missing, use symptom-based diagnostics and focused tools to organize likely causes and next steps.
Key features:
- Simple symptom-based diagnosis
- Download speed (up to about 8 MB or five seconds), internet access, DNS, response time, loss, and jitter checks
- Estimated-router and LAN-device checks while connected to Wi-Fi
- Focused tools for speed, DNS, LAN devices, Ping, and internet access
- Clear results with likely causes and what to try next
- On-device history and text sharing that redacts IP addresses and other network identifiers
- Shared reports include the app version at report creation
Privacy and storage:
- No account required
- History saving is optional; turning it off does not automatically delete existing records
- Shared reports redact IP addresses, MAC addresses, the estimated router, hostnames/DNS names, and LAN device names
- Diagnosis results and history are not sent to the developer's server
- Diagnosis results and history are not included in ad requests
Limitations:
Because of iOS restrictions, LAN-device discovery may be incomplete. The Slow Internet diagnosis and Speed tool download up to about 8 MB or for up to five seconds from nwchk.elevenback.co.jp, ElevenBack's speed-test server, and calculate download Mbps on device. The speed needed depends on the activity, and results vary by time of day and network conditions.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved diagnosis guidance for Wi-Fi and cellular connections, with clearer handling of incomplete measurements. Ping charts now keep updating while the results screen is active, and results, Settings, and Help are easier to read.
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
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- ELEVENBACK, LIMITED LIABILITY COMPANY
- Size
- 19.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $1.99
- Copyright
- © 2026 ElevenBack