diff --git a/.github/workflows/bump-version-flutter-app.yml b/.github/workflows/bump-version-flutter-app.yml
new file mode 100644
index 0000000..f8bb09d
--- /dev/null
+++ b/.github/workflows/bump-version-flutter-app.yml
@@ -0,0 +1,120 @@
+name: bump version / flutter app
+
+on:
+  workflow_call:
+    inputs:
+      date_override:
+        description: >
+          Optional date to use instead of "now" (recommended format: YYYY-MM-DD).
+        required: false
+        type: string
+        default: ""
+      format:
+        description: >
+          Optional CalVer format string passed directly to bump-calver (blank = default).
+        required: false
+        type: string
+        default: ""
+    secrets:
+      APP_ID:
+        description: GitHub App installation ID
+        required: true
+      APP_PRIVATE_KEY:
+        description: GitHub App private key
+        required: true
+
+jobs:
+  prepare_next_release:
+    name: prepare next release
+    runs-on: ubuntu-latest
+    steps:
+      - id: generate_token
+        name: Generate a GitHub App token
+        uses: tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+
+      - name: Checkout source code
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8
+        with:
+          token: ${{ steps.generate_token.outputs.token }}
+          ref: main
+          fetch-depth: 0
+
+      - name: Add Toolbox Envy to PATH
+        uses: EarthmanMuons/toolbox-envy/.github/actions/add-to-path@main
+        with:
+          include_bins: |
+            common
+            flutter
+
+      - name: Configure Git identity
+        run: |
+          git config user.name "senile-errata[bot]"
+          git config user.email "senile-errata@users.noreply.github.com"
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e
+        with:
+          channel: stable
+          flutter-version-file: pubspec.yaml
+          cache: true
+
+      - name: Install dependencies
+        run: flutter pub get --enforce-lockfile
+
+      - name: Update dependencies
+        run: flutter pub upgrade --unlock-transitive
+
+      - name: Bump CalVer version for project
+        run: |
+          bump-calver --format "${{ inputs.format }}" "${{ inputs.date_override }}" | set-project-version
+
+      - name: Bump CHANGELOG version to match
+        run: get-project-version | bump-changelog-version
+
+      - id: version
+        name: Get the new release version
+        run: |
+          echo "release_version=$(get-project-version)" >>"$GITHUB_OUTPUT"
+
+      - name: Verify changes exist
+        run: |
+          git update-index -q --really-refresh
+          if git diff-index --quiet HEAD --; then
+            echo "No changes detected; refusing to open PR."
+            exit 1
+          fi
+
+      - id: cpr
+        name: Create pull request
+        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725
+        with:
+          token: ${{ steps.generate_token.outputs.token }}
+          branch: release/bump-version
+          branch-suffix: timestamp
+          commit-message: Release v${{ steps.version.outputs.release_version }}
+          title: Prepare v${{ steps.version.outputs.release_version }} release.
+          body: |-
+            This PR was automatically created by the [bump-version](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}) workflow, which ran the following commands:
+
+
+            ```
+            $ flutter pub upgrade --unlock-transitive
+            $ bump-calver --format "${{ inputs.format }}" "${{ inputs.date_override }}" | set-project-version
+            $ get-project-version | bump-changelog-version
+            ```
+
+            **Please review the submitted changes.**
+
+            Once this PR is merged into the _main_ branch, an automated process will tag the commit and create a draft GitHub Release with signed assets attached for final review before publishing.
+
+      - name: Annotate workflow run with PR URL
+        run: |
+          set -euo pipefail
+          {
+          echo "### Opened pull request for release v${{ steps.version.outputs.release_version }}"
+          echo
+          echo "- ${{ steps.cpr.outputs.pull-request-url }}"
+          } >>"$GITHUB_STEP_SUMMARY"
diff --git a/.github/workflows/bump-version-flutter.yml b/.github/workflows/bump-version-flutter-lib.yml
similarity index 93%
rename from .github/workflows/bump-version-flutter.yml
rename to .github/workflows/bump-version-flutter-lib.yml
index 4daa6d8..a8deabb 100644
--- a/.github/workflows/bump-version-flutter.yml
+++ b/.github/workflows/bump-version-flutter-lib.yml
@@ -1,4 +1,4 @@
-name: bump version / flutter
+name: bump version / flutter lib
 
 on:
   workflow_call:
@@ -91,10 +91,10 @@ jobs:
         uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725
         with:
           token: ${{ steps.generate_token.outputs.token }}
-          branch: chore/bump-version-${{ inputs.level }}
+          branch: release/bump-version
           branch-suffix: timestamp
-          commit-message: Prepare v${{ steps.version.outputs.release_version }} ${{ inputs.level }} release.
-          title: Release v${{ steps.version.outputs.release_version }}
+          commit-message: Release v${{ steps.version.outputs.release_version }}
+          title: Prepare v${{ steps.version.outputs.release_version }} ${{ inputs.level }} release.
           body: |-
             This PR was automatically created by the [bump-version](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}) workflow, which ran the following commands:
 
diff --git a/README.md b/README.md
index 5ba2ac1..24e8289 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ You call a reusable workflow by using `uses` at the job level:
 
 - `{owner}/{repo}/.github/workflows/<workflow>.yml@{ref}`
 
-For example, to call the "spelling.yml" reusable workflow:
+For example, to call the "check-spelling.yml" reusable workflow:
 
 ```yml
 jobs:
@@ -64,7 +64,8 @@ Workflows specific to Flutter projects:
 
 - `check-flutter.yml` – Format, analyze, and test using pinned Flutter
 - `preload-caches-flutter.yml` – Cache pinned Flutter dependencies
-- `bump-version-flutter.yml` – Bump version and changelog, open PR
+- `bump-version-flutter-app.yml` – Bump CalVer version and changelog, open PR
+- `bump-version-flutter-lib.yml` – Bump SemVer version and changelog, open PR
 - `draft-release-flutter.yml` – Draft release, build, sign, and upload assets
 
 Details: [docs/flutter.md](docs/flutter.md)
diff --git a/docs/flutter.md b/docs/flutter.md
index 8d140d0..355bb9f 100644
--- a/docs/flutter.md
+++ b/docs/flutter.md
@@ -49,9 +49,37 @@ cache to speed up CI runs.
 
 ---
 
-## bump-version-flutter.yml
+## bump-version-flutter-app.yml
 
-Bumps the project semantic version and CHANGELOG and opens a release PR.
+Intended for Flutter applications released as final artifacts (APK/IPA/etc).
+
+Bumps the project version and CHANGELOG (using CalVer), then opens a release
+preparation pull request.
+
+**Inputs**
+
+| Name          | Required |
+| ------------- | -------- |
+| date_override | false    |
+| format        | false    |
+
+**Secrets**
+
+- `APP_ID`
+- `APP_PRIVATE_KEY`
+
+**Authentication**
+
+This workflow requires a GitHub App token (see namespace note above).
+
+---
+
+## bump-version-flutter-lib.yml
+
+Intended for Flutter packages/plugins consumed as dependencies.
+
+Bumps the project version and CHANGELOG (using SemVer), then opens a release
+preparation pull request.
 
 **Inputs**