Custom DNS Switcher started as a simple DNS switcher. The current app also covers per-app DNS, Own DNS local filtering, Wi‑Fi analysis, SSH, Speed Test, LAN tools, TV launcher helpers, local configuration transfer and a new Walkie Beta QR module for compatible phones.
Not a VPN for changing country. The app uses Android VpnService locally to handle DNS on the device. Walkie Beta QR is a Premium Google Play module for phones/tablets; the classic Bluetooth Walkie remains separate.
The images below are localized mockups based on the programmed app UI. They are not emulator screenshots, but they show the main TV and phone screens.
No account, no ads and a local-first design. Technical data stays on the device unless the user explicitly runs a network tool, connects to DNS/SSH services, shares an export or uses Google Play billing.
Walkie Beta QR works locally/offline over Nearby Connections, and Own DNS stores full domain logs only after the user turns that option on.
Free covers classic DNS switching and quick checks. Premium Lifetime unlocks encrypted DNS, Own DNS, automation, SSH, room Wi‑Fi scans, advanced statistics and Walkie Beta QR.
What the key modules do: classic DNS, Own DNS, Walkie, Wi‑Fi, SSH, LAN, Speed Test, transfer, privacy and TV setup.
Key actions on the DNS, Own DNS, Walkie and network-tool screens.
| Button | Action |
|---|---|
| Start | Requests Android VPN permission and starts local DNS handling. |
| Stop | Stops the local DNS VPN. |
| Servers | Opens the library of classic/encrypted DNS servers and custom resolvers. |
| Apps | Premium: choose which apps are covered by DNS / split tunneling. |
| Own DNS settings | Opens configuration for the experimental Own DNS mode. |
| Apply preconfigured profile | Loads a ready-made Own DNS profile for quick testing. |
| Test upstream connection | Checks the DoH/DoT upstream and saves the last test result. |
| Connect Own DNS | Enables the Own DNS profile after successful configuration and testing. |
| Update filters now | Downloads / refreshes active filter lists and recompiles the rules. |
| Add HTTPS source | Adds a custom domain-list source over HTTPS. |
| Test domain | Explains whether a domain will be blocked, redirected or sent upstream. |
| Export domain log | Exports the full or anonymized Own DNS domain log on user request. |
| CREATE QR ROOM | Creates a Walkie Beta QR room and shows the code to participants. |
| SCAN LIVE QR | Starts QR scanning and tries to join the Nearby room. |
| Paste invite code | Lets you paste a `cdswalkie://join` link or a raw room code. |
| HOLD TO TALK | Half-duplex PTT: you speak only while the button is held. |
| Call alert | Sends a sound/vibration alert to other participants. |
| Speaker ON/OFF | Switches playback between loudspeaker and earpiece mode. |
| Send photo | Sends a compressed image locally to the room participants. |
| Scan Wi‑Fi now | Runs a quick Wi‑Fi scan on the current device. |
| Wi‑Fi room scanner | Premium: opens room-by-room Wi‑Fi scans with history and comparisons. |
| Connect SSH | Opens an SSH session for the selected profile. |
| Start tunnel | Starts local port forwarding over SSH. |
| Full Speed Test | Premium: full download/upload/latency/jitter test with history. |
| Receive on TV | Starts the local phone → TV configuration receiver over LAN with PIN. |
| DNS queries | Classic DNS queries and allowed Own DNS queries are sent to the resolver selected by the user. |
| Own DNS logs | Full Own DNS domain logs are off by default. If enabled, they stay local for up to 7 days and nothing is uploaded automatically. |
| Own DNS filter sources | The app uses bundled lists or user-supplied HTTPS URLs. Updates run on demand or through auto-update. |
| Walkie Beta QR | Messages, audio and photos travel locally between participants over Nearby Connections/Bluetooth/Wi‑Fi, without the app owner's cloud. |
| SSH profiles | SSH hosts, users, passwords/keys and commands are stored locally if you save a profile. |
| Wi‑Fi Analyzer | SSID/BSSID, channel, band and RSSI can be read from Android Wi‑Fi APIs and stored locally for room scans. |
| Speed Test | Full tests upload and download data to the selected endpoint; Premium history stays local. |
| Transfer and QR | Export, import, QR and phone → TV transfer run locally or only on user request. |
| Purchases | Premium Lifetime and Play modules are handled by Google Play; the app does not see full payment-card details. |
The complete user manual now lives on a dedicated documentation page with full tutorials, feature explanations and Free/Premium differences.
The home page stays a shortcut. The full user documentation now explains Own DNS, Wi‑Fi Analyzer room scans, Walkie Free and Walkie Beta QR, SSH, Android TV, widgets, import/transfer and every important Free/Premium difference in detail.
A structured help page with a table of contents, step-by-step instructions and practical descriptions for every major app feature.
A complete version list prepared from `CHANGES-*.txt` files plus newer local commits up to generation 3.11.93.