All versions of Hello Haylou Watch App

hu.tiborsosdevs.haylou.hello · 4 versions

Hello Haylou Watch App has 4 versions listed, going back to v3.6.5. Since v3.6.5 the APK grew from 25.2 MB to 62.8 MB.

Minimum Android version over time

From v3.7.17: requires Android 6.0+

Older versions are the way to go if your device runs an earlier Android release.

All 4 versions checked are signed with the same certificate (4F:1C:0E:2D…, issued to “self-employed”), so they can update one another.

Versions, newest first

v3.7.19 (30719) LATEST

Uploaded May 17, 2026 62.8 MB Android 6.0+ TRUSTED

83289689aa85a1e7edc161c7c80545f5

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What's new (as uploaded)

19/12/2026 - version: 3.7.18 - Full-screen view in the watch face editor - minor UI improvements 17/11/2025 - version: 3.7.16 - sleep sync. bug fix 17/10/2025 - version: 3.7.14 - bug fixes and performance improvements 28/09/2025 - version: 3.7.13 - Haylou Solar 5/Ultra watch face uploading bug fix - minor UI changes, bug fixes and performance improvements 31/08/2025 - version: 3.7.9 - Haylou Solar Ultra (LS23) support 18/08/2025 - version: 3.7.7 - bug fixes and performance improvements

v3.7.18 (30718)

Uploaded Jun 24, 2026 68.6 MB Android 6.0+ TRUSTED

a61492b149396cfe066d46bb822240da

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What's new (as uploaded)

29/12/2025 - version: 3.7.17 - minor UI improvements 17/11/2025 - version: 3.7.16 - sleep sync. bug fix 17/10/2025 - version: 3.7.14 - bug fixes and performance improvements 28/09/2025 - version: 3.7.13 - Haylou Solar 5/Ultra watch face uploading bug fix - minor UI changes, bug fixes and performance improvements 31/08/2025 - version: 3.7.9 - Haylou Solar Ultra (LS23) support 18/08/2025 - version: 3.7.7 - bug fixes and performance improvements

v3.7.17 (30717)

Uploaded Apr 18, 2026 68.5 MB Android 6.0+ TRUSTED

fb8360f615006be67220ad150a4b1566

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Same release notes as v3.7.18.

v3.6.5 (30605)

Uploaded Jan 6, 2026 25.2 MB Android 5.1+ TRUSTED

d25e74bc514c7e185e085b2a511c4d89

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What's new (as uploaded)

01/12/2024 - version: 3.6.4 - Haylou Solar Lite (R001) support - Android 14 bug fix 18/11/2024 - version: 3.6.3 - Haylou Solar Neo (LS21) support - Haylou RS4 Max (LS17) support 03/10/2024 - version: 3.6.2 - Haylou Iron N1 (LS24) support 30/07/2024 - version: 3.5.9 - main screen setting: workout item - watch face setting: language setting for .tbwf files - workout sync. bug fix 30/06/2024 - version: 3.5.8 - main screen setting option - UI improvements