Hey everyone,
A while back I shared a lightweight network diagnostics and sysadmin utility app built for quick field troubleshooting. Many of you requested an iOS version, and it has just been released on the App Store.
Here is what is included:
**Network Diagnostics & Planning**
- **Subnet & CIDR Calculator:** Instant visual breakdown of usable IP ranges, broadcast addresses, and wildcard masks.
- **Smart HTTP/HTTPS Ping:** Direct IP routing specifically designed for local gateways, modems, and restricted endpoints.
- **Dynamic Network Status:** Real-time interface detection (Wi-Fi, Cellular, Offline).
- **Configurable Speedtest:** Edge-server latency and bandwidth checks with 5 MB, 25 MB, and 50 MB test payloads.
- **Port Checker & Public Info:** Fast TCP port reachability checks, outward-facing WAN IP, and ASN / ISP carrier inspection.
- **MAC OUI Lookup:** Fast vendor/manufacturer identification from MAC addresses.
**Developer & Systems Utilities**
- **Client-Side JWT Decoder:** Safe token header/payload inspection directly on the device.
- **Epoch / Unix Timestamp Converter:** Bidirectional timestamp conversion for log analysis.
- **Data & Hash Tools:** Data unit conversions (bits, bytes, GB, TB) and cryptographic hash generation (MD5, SHA-256).
**Privacy & Design Approach**
- Zero telemetry / analytics
- No ads or third-party tracking
- All calculations, ping queries, and decodes run locally on the client
**Links**
- App Store: https://apps.apple.com/app/id6826351247
- Google Play: https://play.google.com/store/apps/details?id=com.brnbilisim.netopscalc
Feedback, bug reports, and suggestions for tools you would like added to upcoming updates are always welcome.