Testers needed for a wear OS Bezel-based 2FA TOTP offline authenticator

Hello, Wear OS app with companion phone app to manage accounts. Display your TOTP codes directly on your watch.

thanks

  1. https://groups.google.com/g/rotarysafe_closedtesting (Google Group — required for access)
  2. https://play.google.com/apps/testing/com.luly.rotarysafe (tester registration)
  3. https://play.google.com/store/apps/details?id=com.luly.rotarysafe (install)

Quick note on the price tag.

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

reddit.com
u/Wide-Income2575 — 3 days ago
▲ 0 r/WearOS

A few more ... Testers needed for a new Bezel-based 2FA app (RotarySafe)

Hello,

A few more testers are needed for the closed testing requirement. give it a try! transform your watch into an authenticator

Steps to join closed testing:

  1. https://groups.google.com/g/rotarysafe_closedtesting (Google Group — required for access)
  2. https://play.google.com/apps/testing/com.luly.rotarysafe (tester registration)
  3. https://play.google.com/store/apps/details?id=com.luly.rotarysafe (install)

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

Requires a Wear OS watch.

u/Wide-Income2575 — 7 days ago

Testers needed for a new Bezel-based 2FA app (RotarySafe)

I built a TOTP authenticator that physically gates code access behind a watch bezel combination — closed beta, looking for security-minded testers

If you're in this sub you already know that "something you know" (password) plus "something you have" (TOTP code) is the baseline. RotarySafe adds a third factor that lives on your wrist.

The model: your TOTP secrets sit in an AES-256-GCM encrypted vault on your phone. To generate a code, you have to enter a rotary combination on your Wear OS watch — four steps, each a directional click count on the bezel, like a physical combination lock. Three wrong attempts and the vault hard-locks; clearing it requires biometric auth on the phone. The combination itself is hashed with PBKDF2 at 100k iterations and never stored in recoverable form. The app has no internet permission — it is physically incapable of phoning home.

The app is in closed testing and I want testers who will actually run it as their daily authenticator — edge cases only appear with real use.

Joining closed testing (three steps):

  1. Google Group (required): https://groups.google.com/g/rotarysafe_closedtesting
  2. Register as tester: https://play.google.com/apps/testing/com.luly.rotarysafe
  3. Install: https://play.google.com/store/apps/details?id=com.luly.rotarysafe

Wear OS watch required. Works with any standard TOTP account; Google Authenticator import built in; Argon2id-encrypted backup for account migration. Happy to go deeper on the security design in comments — nothing is hand-wavy here.

reddit.com
u/Wide-Income2575 — 9 days ago

Testers needed for a new Bezel-based 2FA app (RotarySafe)

Your authenticator app displays 2FA codes to anyone who glances at your phone — I built one that requires a physical combination on your watch first

Most TOTP apps have a quiet problem: open the app, codes are right there. Anyone nearby who sees your screen — or grabs your unlocked phone for a second — has your 2FA codes.

RotarySafe works differently. Your codes are in an encrypted vault on your phone. To open that vault, you have to enter a physical rotary combination on your Wear OS watch — like dialing a safe. Four steps, each a number of clicks left or right on the watch bezel. Get it wrong three times and it locks until you clear it from your phone with your fingerprint.

The codes never appear on screen until the combination is correct. And since it holds no internet permission, nothing ever leaves your devices.

It's in closed testing right now and I'm looking for people who care about 2FA security to use it daily and give honest feedback.

To get access:

  1. Join the testing group → https://groups.google.com/g/rotarysafe_closedtesting
  2. Register as a tester → https://play.google.com/apps/testing/com.luly.rotarysafe
  3. Install the app → https://play.google.com/store/apps/details?id=com.luly.rotarysafe

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

You'll need a Wear OS smartwatch — the physical combination is the whole security model, so it can't work without one. Imports from Google Authenticator if you want to move accounts over easily.

u/Wide-Income2575 — 9 days ago
▲ 7 r/galaxywatchultra+2 crossposts

Testers needed for a new Bezel-based 2FA app (RotarySafe)

Built a Wear OS TOTP authenticator where the bezel combination is the vault key — closed testing, looking for daily users

I've been building RotarySafe for a while and it's finally in a shape where I need real users rather than just me testing on my own watch.

The concept: your 2FA codes live in an encrypted vault that only opens when you dial a four-step rotary combination on your watch bezel. It mirrors a physical combination lock — each step is a number of clicks left or right, zero is not valid, three wrong attempts triggers a hard lock. The app holds no internet permission; everything is local.

Technical details for those who care:

  • Communication between phone and watch is AES-256-GCM encrypted at the app layer (on top of Bluetooth link encryption)
  • PBKDF2-HMAC-SHA256 at 100k iterations for the combination hash, Argon2id for backup encryption
  • The combination hash is computed on the watch before transmission — raw values never leave the device
  • Full TOTP per RFC 6238, Google Authenticator import supported

I'm specifically looking for people who will actually use it as their main authenticator, not just install it and forget it. Bugs that only appear in daily use are the interesting ones.

Steps to join closed testing:

  1. https://groups.google.com/g/rotarysafe_closedtesting (Google Group — required for access)
  2. https://play.google.com/apps/testing/com.luly.rotarysafe (tester registration)
  3. https://play.google.com/store/apps/details?id=com.luly.rotarysafe (install)

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

Requires a Wear OS watch.

u/Wide-Income2575 — 9 days ago

Testers needed for a new Bezel-based 2FA app (RotarySafe)

RotarySafe: a 2FA app that uses your rotating bezel as a physical combination lock — closed beta testers wanted

Galaxy Watch users — this one was basically made for you.

RotarySafe is a TOTP authenticator that works like a safe. Before your 2FA codes appear, you have to twist the bezel in a four-step combination — a specific number of clicks clockwise or counter-clockwise per step. Get it wrong three times and the vault locks until you unlock it from your phone with biometrics.

The physical bezel isn't just a UI element here — it's the authentication mechanism. There's something genuinely tactile and satisfying about it, especially on watches where the bezel has real resistance.

It's in closed testing and I'm looking for Galaxy Watch users willing to run it as their daily authenticator and report back honestly.

What it does:

  • Standard TOTP (Google, GitHub, anything with a QR code)
  • Fully offline — no internet permission at all
  • Google Authenticator import
  • Encrypted backup
  • Hard-lock after 3 wrong attempts

How to join:

  1. Join the group → https://groups.google.com/g/rotarysafe_closedtesting
  2. Register as tester → https://play.google.com/apps/testing/com.luly.rotarysafe
  3. Install → https://play.google.com/store/apps/details?id=com.luly.rotarysafe

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

You'll need both the phone and watch apps.

u/Wide-Income2575 — 9 days ago

Testers needed for a new Bezel-based 2FA app (RotarySafe)

I turned my watch bezel into a physical combination lock for 2FA codes — looking for closed beta testers

So I had this idea: what if your smartwatch bezel worked like a safe dial? Twist it a specific sequence, and your TOTP codes unlock. Twist it wrong three times and the vault hard-locks until you clear it from your phone with biometrics.

That's RotarySafe. It's a Wear OS authenticator where the bezel is the key — four steps, each a number of clockwise or counter-clockwise clicks. No combination, no codes. The watch face shows nothing until you nail the sequence.

It's in closed testing now and I need people willing to actually use it day-to-day and tell me what breaks. A few things that might interest this crowd:

  • Works with any TOTP account (Google, GitHub, whatever)
  • Completely offline — no internet permission, zero network calls
  • Imports from Google Authenticator
  • Encrypted local backup with Argon2id
  • The bezel animation is genuinely satisfying

To join:

  1. Join the testing group → https://groups.google.com/g/rotarysafe_closedtesting
  2. Accept the tester invite → https://play.google.com/apps/testing/com.luly.rotarysafe
  3. Install → https://play.google.com/store/apps/details?id=com.luly.rotarysafe

On the "Become a Tester" page, click the link that says "Download it on Google Play."When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."This meaning 0 cost for you now and after the testing, by the group membership.

Happy to answer questions about how it works. Fair warning: it requires a Wear OS watch — the bezel IS the security layer, so there's no phone-only mode.

reddit.com
u/Wide-Income2575 — 9 days ago

[Free Weekend] Big Time Weather — Data-rich, high-contrast Wear OS Watch Face

**Key Features:**

* **Visual Weather Logic:** Clean iconography that updates dynamically based on your local conditions.

* **Smart Visual Alerts:** The weather frame changes color based on precipitation probability (Yellow at 50%, Red at 80%). It also includes visual cues for extreme temperatures (sub-zero freezing or >30°C hot days).

* **Custom Complications:** Slots for messaging app shortcuts, next calendar event, and phone battery status.

* **Optimized AOD:** Includes a dedicated, low-energy Always-On Display mode.

It is **100% free from now through the weekend** to celebrate the launch. I'd love for you to grab a copy, try it out, and let me know your thoughts!

play.google.com
u/Wide-Income2575 — 29 days ago

[Free Weekend] Big Time Weather — Data-rich, high-contrast Wear OS Watch Face

Hi there!

I wanted to share my latest design: **Big Time Weather**. Built entirely on the modern Wear OS Watch Face Format, it’s designed to give you crisp, high-visibility data while remaining incredibly friendly on your battery.

**Key Features:**

* **Visual Weather Logic:** Clean iconography that updates dynamically based on your local conditions.

* **Smart Visual Alerts:** The weather frame changes color based on precipitation probability (Yellow at 50%, Red at 80%). It also includes visual cues for extreme temperatures (sub-zero freezing or >30°C hot days).

* **Custom Complications:** Slots for messaging app shortcuts, next calendar event, and phone battery status.

* **Optimized AOD:** Includes a dedicated, low-energy Always-On Display mode.

It is **100% free from now through the weekend** to celebrate the launch. I'd love for you to grab a copy, try it out, and let me know your thoughts!

https://preview.redd.it/xkm74i6lfl5h1.png?width=526&format=png&auto=webp&s=7025f25b352709dc1f0a271169ce048a48d843e0

**Get it on Google Play:**

https://play.google.com/store/apps/details?id=com.luly.bigtimeweather

reddit.com
u/Wide-Income2575 — 1 month ago

[Free Weekend] Big Time Weather — Data-rich, high-contrast Wear OS Watch Face

Hi there!

I wanted to share my latest design: **Big Time Weather**. Built entirely on the modern Wear OS Watch Face Format, it’s designed to give you crisp, high-visibility data while remaining incredibly friendly on your battery.

**Key Features:**

* **Visual Weather Logic:** Clean iconography that updates dynamically based on your local conditions.

* **Smart Visual Alerts:** The weather frame changes color based on precipitation probability (Yellow at 50%, Red at 80%). It also includes visual cues for extreme temperatures (sub-zero freezing or >30°C hot days).

* **Custom Complications:** Slots for messaging app shortcuts, next calendar event, and phone battery status.

* **Optimized AOD:** Includes a dedicated, low-energy Always-On Display mode.

It is **100% free from now through the weekend** to celebrate the launch. I'd love for you to grab a copy, try it out, and let me know your thoughts!

**Get it on Google Play:**

https://preview.redd.it/2gsy4am8fl5h1.png?width=526&format=png&auto=webp&s=0c4c99c670daba756e4751e3d412be81b0266fff

https://play.google.com/store/apps/details?id=com.luly.bigtimeweather

reddit.com
u/Wide-Income2575 — 1 month ago

[Free Weekend] Big Time Weather — Data-rich, high-contrast Wear OS Watch Face

Hi there!

I wanted to share my latest design: **Big Time Weather**. Built entirely on the modern Wear OS Watch Face Format, it’s designed to give you crisp, high-visibility data while remaining incredibly friendly on your battery.

**Key Features:**

* **Visual Weather Logic:** Clean iconography that updates dynamically based on your local conditions.

* **Smart Visual Alerts:** The weather frame changes color based on precipitation probability (Yellow at 50%, Red at 80%). It also includes visual cues for extreme temperatures (sub-zero freezing or >30°C hot days).

* **Custom Complications:** Slots for messaging app shortcuts, next calendar event, and phone battery status.

* **Optimized AOD:** Includes a dedicated, low-energy Always-On Display mode.

It is **100% free from now through the weekend** to celebrate the launch. I'd love for you to grab a copy, try it out, and let me know your thoughts!

**Get it on Google Play:**

https://preview.redd.it/5to8m2mxel5h1.png?width=526&format=png&auto=webp&s=877252770d2b928a896df5000b026335d28aa908

https://play.google.com/store/apps/details?id=com.luly.bigtimeweather

reddit.com
u/Wide-Income2575 — 1 month ago

[Free Weekend] Big Time Weather — Data-rich, high-contrast Wear OS Watch Face

Hi there!

I wanted to share my latest design: **Big Time Weather**. Built entirely on the modern Wear OS Watch Face Format, it’s designed to give you crisp, high-visibility data while remaining incredibly friendly on your battery.

**Key Features:**

* **Visual Weather Logic:** Clean iconography that updates dynamically based on your local conditions.

* **Smart Visual Alerts:** The weather frame changes color based on precipitation probability (Yellow at 50%, Red at 80%). It also includes visual cues for extreme temperatures (sub-zero freezing or >30°C hot days).

* **Custom Complications:** Slots for messaging app shortcuts, next calendar event, and phone battery status.

* **Optimized AOD:** Includes a dedicated, low-energy Always-On Display mode.

It is **100% free from now through the weekend** to celebrate the launch. I'd love for you to grab a copy, try it out, and let me know your thoughts!

**Get it on Google Play:**

https://play.google.com/store/apps/details?id=com.luly.bigtimeweather

https://preview.redd.it/88u80ah9cl5h1.png?width=526&format=png&auto=webp&s=6753bcd5e45830852067a70e5d47d0bbfac8c8f5

reddit.com
u/Wide-Income2575 — 1 month ago

WatchFace testing ...

Good Day!

Anyone needing watch face closed testing? well, we are in the same boat.

Feel free to post your details and i will do likewise.

Join the Group : https://groups.google.com/g/BigTimeWeather_WatchFace_TestingGroup

Opt in : https://play.google.com/apps/testing/com.luly.bigtimeweather

Download the app : https://play.google.com/store/apps/details?id=com.luly.bigtimeweather

https://preview.redd.it/3yeha4ha7t3h1.png?width=512&format=png&auto=webp&s=fbf7b8122a42ee33a85d0b6e7d6060aa7c62df77

When you click to "buy" it, Google will show a message: "Test card: Always approves" or "You will not be charged."

This meaning 0 cost for you now and after the testing, by the group membership.

Thanks!

reddit.com
u/Wide-Income2575 — 1 month ago