diff --git a/src/ageAssurance/components/DeviceSignalsNotice.tsx b/src/ageAssurance/components/DeviceSignalsNotice.tsx
new file mode 100644
index 0000000000..bd2d7d2381
--- /dev/null
+++ b/src/ageAssurance/components/DeviceSignalsNotice.tsx
@@ -0,0 +1,63 @@
+import {Trans, useLingui} from '@lingui/react/macro'
+
+import {atoms as a, useTheme} from '#/alf'
+import {createStaticClick, SimpleInlineLinkText} from '#/components/Link'
+import {Text} from '#/components/Typography'
+import {IS_IOS} from '#/env'
+
+/**
+ * Explains what sharing on-device age signals reveals, shown alongside the
+ * "Share age range" button on the age assurance surfaces (the no-access screen
+ * and the account settings card).
+ *
+ * Platform-split so the copy can name the OS account the age range comes from
+ * (Apple Account vs Google Account) and reassure users that only a range is
+ * shared. Device signals are only supported on iOS and Android, so these are
+ * the only two cases.
+ */
+export function DeviceSignalsNotice({onPressKws}: {onPressKws: () => void}) {
+  const t = useTheme()
+  const {t: l} = useLingui()
+
+  return (
+    <Text style={[a.text_sm, a.italic, t.atoms.text_contrast_medium]}>
+      {IS_IOS ? (
+        <Trans comment="Shown next to the 'Share age range' button when on-device age verification is available. KWS is the name of a third-party verification partner.">
+          Sharing your age range reveals only the range associated with your
+          Apple Account – for example, that you’re at least 18.{' '}
+          <Text style={[a.text_sm, a.font_bold]}>
+            Your exact age and birthday are never shared,
+          </Text>{' '}
+          and this data never leaves this device. Therefore, it only enables
+          access on this device. Alternatively,{' '}
+          <SimpleInlineLinkText
+            label={l`Verify now using KWS`}
+            {...createStaticClick(() => {
+              onPressKws()
+            })}>
+            you can use our trusted partner, KWS
+          </SimpleInlineLinkText>
+          , to complete your verification and enable access on all platforms.
+        </Trans>
+      ) : (
+        <Trans comment="Shown next to the 'Share age range' button when on-device age verification is available. KWS is the name of a third-party verification partner.">
+          Sharing your age range reveals only the range associated with your
+          Google Account – for example, that you’re at least 18.{' '}
+          <Text style={[a.text_sm, a.font_bold]}>
+            Your exact age and birthday are never shared,
+          </Text>{' '}
+          and this data never leaves this device. Therefore, it only enables
+          access on this device. Alternatively,{' '}
+          <SimpleInlineLinkText
+            label={l`Verify now using KWS`}
+            {...createStaticClick(() => {
+              onPressKws()
+            })}>
+            you can use our trusted partner, KWS
+          </SimpleInlineLinkText>
+          , to complete your verification and enable access on all platforms.
+        </Trans>
+      )}
+    </Text>
+  )
+}
diff --git a/src/ageAssurance/components/NoAccessScreen.tsx b/src/ageAssurance/components/NoAccessScreen.tsx
index 29d9abc5b2..895e57d077 100644
--- a/src/ageAssurance/components/NoAccessScreen.tsx
+++ b/src/ageAssurance/components/NoAccessScreen.tsx
@@ -27,6 +27,7 @@ import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {BottomSheetOutlet} from '#/../modules/bottom-sheet'
 import {useAgeAssurance} from '#/ageAssurance'
+import {DeviceSignalsNotice} from '#/ageAssurance/components/DeviceSignalsNotice'
 import {useAgeAssuranceServerDataContext} from '#/ageAssurance/data'
 import {useComputeAgeAssuranceRegionAccess} from '#/ageAssurance/useComputeAgeAssuranceRegionAccess'
 import {useAgeAssuranceVerificationFlow} from '#/ageAssurance/useVerificationFlow'
@@ -428,23 +429,7 @@ function AccessSection() {
               </Button>
 
               {useDeviceSignals ? (
-                <Text
-                  style={[a.text_sm, a.italic, t.atoms.text_contrast_medium]}>
-                  <Trans>
-                    Sharing your age data uses information stored on your
-                    device, and will therefore only work on this device.
-                    Alternatively,{' '}
-                    <SimpleInlineLinkText
-                      label={l`Verify now using KWS`}
-                      {...createStaticClick(() => {
-                        openInitDialog()
-                      })}>
-                      you can use our trusted partner, KWS
-                    </SimpleInlineLinkText>
-                    , to complete your verification and enable access on all
-                    platforms.
-                  </Trans>
-                </Text>
+                <DeviceSignalsNotice onPressKws={openInitDialog} />
               ) : lastInitiatedAt && timeAgo && diff ? (
                 <Text
                   style={[a.text_sm, a.italic, t.atoms.text_contrast_medium]}
diff --git a/src/ageAssurance/useVerificationFlow.ts b/src/ageAssurance/useVerificationFlow.ts
index 247da65b0c..d14aefd230 100644
--- a/src/ageAssurance/useVerificationFlow.ts
+++ b/src/ageAssurance/useVerificationFlow.ts
@@ -59,7 +59,7 @@ export function useAgeAssuranceVerificationFlow({
 
   const verifyCta =
     allowsDeviceVerification && !deviceSignalsFailed
-      ? l`Share age data`
+      ? l`Share age range`
       : hasInitiated
         ? l`Verify again`
         : l`Verify now`
diff --git a/src/components/ageAssurance/AgeAssuranceAccountCard.tsx b/src/components/ageAssurance/AgeAssuranceAccountCard.tsx
index 8833e75a00..0a3dceee5e 100644
--- a/src/components/ageAssurance/AgeAssuranceAccountCard.tsx
+++ b/src/components/ageAssurance/AgeAssuranceAccountCard.tsx
@@ -22,6 +22,7 @@ import {Loader} from '#/components/Loader'
 import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {useAgeAssurance} from '#/ageAssurance'
+import {DeviceSignalsNotice} from '#/ageAssurance/components/DeviceSignalsNotice'
 import {useComputeAgeAssuranceRegionAccess} from '#/ageAssurance/useComputeAgeAssuranceRegionAccess'
 import {useAgeAssuranceVerificationFlow} from '#/ageAssurance/useVerificationFlow'
 import {createGeolocationString} from '#/ageAssurance/util'
@@ -164,23 +165,7 @@ function Inner({style}: ViewStyleProp & {}) {
                 </Button>
 
                 {useDeviceSignals ? (
-                  <Text
-                    style={[a.text_sm, a.italic, t.atoms.text_contrast_medium]}>
-                    <Trans>
-                      Sharing your age data uses information stored on your
-                      device, and will therefore only work on this device.
-                      Alternatively,{' '}
-                      <InlineLinkText
-                        label={l`Verify now using KWS`}
-                        {...createStaticClick(() => {
-                          openInitDialog()
-                        })}>
-                        you can use our trusted partner, KWS
-                      </InlineLinkText>
-                      , to complete your verification and enable access on all
-                      platforms.
-                    </Trans>
-                  </Text>
+                  <DeviceSignalsNotice onPressKws={openInitDialog} />
                 ) : lastInitiatedAt && timeAgo && diff ? (
                   <Text
                     style={[a.text_sm, a.italic, t.atoms.text_contrast_medium]}