diff --git a/interface/app.py b/interface/app.py
index 356bde5..c901652 100644
--- a/interface/app.py
+++ b/interface/app.py
@@ -119,7 +119,7 @@
     psutil = None
 
 
-APP_NAME = "DrunkenBot LLM-IDE"
+APP_NAME = "DrunkenBot-IDE"
 # Bump on every release that should require a version-ceiling check against
 # licenses -- this is what license_client.check_license_at_launch compares
 # against a license's version_ceiling/grace_period_until.
@@ -195,35 +195,31 @@ def _ensure_valid_license(splash: "StartupValidationSplash") -> bool:
                 "[OK] License valid"
                 + (" (offline grace period)" if result.used_offline_grace else "")
             )
+            QApplication.instance().setProperty("license_valid", True)
             return True
         initial_message = result.reason
     else:
         initial_message = "No license activated on this machine yet."
 
-    # A QSplashScreen-style window is designed to stay on top of other
-    # windows during startup -- which means it can end up covering a newly
-    # created dialog instead of the other way around. Hide it while the
-    # dialog is up rather than fight window-stacking order; it isn't doing
-    # anything useful to look at during activation anyway.
     splash.hide()
     try:
-        while True:
-            dialog = LicenseActivationDialog(APP_VERSION, LICENSE_SERVER_URL, initial_message)
-            dialog.setWindowIcon(MainWindow._static_app_icon())
-            dialog.show()
-            dialog.raise_()
-            dialog.activateWindow()
-            if dialog.exec() != QDialog.Accepted:
-                LOGGER.info("License activation cancelled by user; exiting.")
-                QApplication.instance().setProperty("startup_aborted", True)
-                return False
+        dialog = LicenseActivationDialog(APP_VERSION, LICENSE_SERVER_URL, initial_message)
+        dialog.setWindowIcon(MainWindow._static_app_icon())
+        if dialog.exec() == QDialog.Accepted and dialog.result_info is not None:
+            QApplication.instance().setProperty("license_valid", True)
             splash.append_log("[OK] License activated")
             return True
+        if dialog.trial_requested:
+            QApplication.instance().setProperty("license_valid", False)
+            splash.append_log("[TRIAL] User selected trial version")
+            return True
+        LOGGER.info("License activation cancelled by user; exiting.")
+        QApplication.instance().setProperty("startup_aborted", True)
+        return False
     finally:
         splash.show()
         splash.raise_()
 
-
 def main(app: Optional[QApplication] = None, splash: Optional[StartupSplash] = None) -> None:
     """Launch the PySide6 desktop application."""
 
diff --git a/interface/license_activation_dialog.py b/interface/license_activation_dialog.py
index 0956945..d89147c 100644
--- a/interface/license_activation_dialog.py
+++ b/interface/license_activation_dialog.py
@@ -105,8 +105,9 @@ def __init__(self, app_version: str, server_url: str, initial_message: str = "")
         self._app_version = app_version
         self._server_url = server_url
         self.result_info: LicenseCheckResult | None = None
+        self.trial_requested = False
 
-        self.setWindowTitle("Activate DrunkenBot LLM-IDE")
+        self.setWindowTitle("Activate DrunkenBot-IDE")
         self.setModal(True)
         self.setMinimumWidth(480)
 
@@ -132,7 +133,10 @@ def __init__(self, app_version: str, server_url: str, initial_message: str = "")
         self._activate_button.clicked.connect(self._on_activate_clicked)
         self._exit_button = QPushButton("Exit")
         self._exit_button.clicked.connect(self.reject)
+        self._trial_button = QPushButton("Open Trial Version")
+        self._trial_button.clicked.connect(self._open_trial)
         button_row.addWidget(self._activate_button)
+        button_row.addWidget(self._trial_button)
         button_row.addWidget(self._exit_button)
         layout.addLayout(button_row)
 
@@ -162,6 +166,11 @@ def _on_activate_clicked(self) -> None:
 
         self._show_status(result.reason)
 
+    def _open_trial(self) -> None:
+        """Close the dialog and request restricted trial mode."""
+        self.trial_requested = True
+        self.accept()
+
     def _show_status(self, message: str) -> None:
         """Display a status/error message in the dialog.
 
diff --git a/interface/main_window_part1.py b/interface/main_window_part1.py
index c149431..45fc0d3 100644
--- a/interface/main_window_part1.py
+++ b/interface/main_window_part1.py
@@ -15,7 +15,11 @@ def __init__(self) -> None:
         LOGGER.info("Creating %s main window", APP_NAME)
         if QApplication.instance():
             QApplication.instance().setFont(QFont("Arial", 10))
-        self.setWindowTitle(APP_NAME)
+        licensed = bool(QApplication.instance().property("license_valid"))
+        self.setWindowTitle(
+            f"{APP_NAME} {APP_VERSION} "
+            f"({'licensed' if licensed else 'Trial Version'})"
+        )
         self.setWindowIcon(self._app_icon())
         self._windows_icon_handles: list[int] = []
         self.resize(1240, 820)
@@ -372,7 +376,11 @@ def show_chat_only_mode(self) -> None:
         if hasattr(self, "side_rail"):
             self.side_rail.hide()
         self._switch_page(8)
-        self.setWindowTitle("DrunkenBot - Chat")
+        licensed = bool(QApplication.instance().property("license_valid"))
+        self.setWindowTitle(
+            f"{APP_NAME} {APP_VERSION} "
+            f"({'licensed' if licensed else 'Trial Version'})"
+        )
         self.resize(980, 760)
 
     def resizeEvent(self, event: Any) -> None:
diff --git a/interface/main_window_part11.py b/interface/main_window_part11.py
index 5f09168..c6f2c7e 100644
--- a/interface/main_window_part11.py
+++ b/interface/main_window_part11.py
@@ -8,6 +8,8 @@
 
 class MainWindowPart11:
     def prepare_dataset(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            self.context_length.setValue(min(self.context_length.value(), 1000))
         """Collect dataset options and start dataset preparation."""
 
         config = self._dataset_config_from_ui()
@@ -282,6 +284,11 @@ def _update_online_dataset_stage_controls(self) -> None:
 
         if not hasattr(self, "dataset_stage"):
             return
+        if not bool(QApplication.instance().property("license_valid")):
+            self.include_conversation_datasets.setChecked(False)
+            self.include_conversation_datasets.setEnabled(False)
+            if hasattr(self, "external_dataset_download_button"):
+                self.external_dataset_download_button.setEnabled(False)
         stage = self._dataset_stage_value()
         allowed = set(CONVERSATION_DATASET_PRESETS)
         include_online = self.include_conversation_datasets.isChecked()
@@ -422,5 +429,3 @@ def _selected_default_data_paths(self) -> list[Path]:
             for path, item in self.default_data_actions.items()
             if item.checkState(0) == Qt.Checked
         ]
-
-
diff --git a/interface/main_window_part16.py b/interface/main_window_part16.py
index af37946..e38c512 100644
--- a/interface/main_window_part16.py
+++ b/interface/main_window_part16.py
@@ -312,6 +312,8 @@ def _run_training_preflight(self, model_config: ModelConfig, training_config: Tr
         return True
 
     def start_training(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            self.train_context_length.setValue(min(self.train_context_length.value(), 1000))
         """Collect training options and start model training."""
 
         launch_target = self._training_launch_target_value()
@@ -388,4 +390,3 @@ def start_training(self) -> None:
             task_kind="training",
         )
 
-
diff --git a/interface/main_window_part17.py b/interface/main_window_part17.py
index 8361f28..64a3928 100644
--- a/interface/main_window_part17.py
+++ b/interface/main_window_part17.py
@@ -382,6 +382,9 @@ def _append_chat_markdown(self, role: str, content: str) -> None:
         self._add_chat_message("user" if role.lower() in {"you", "user"} else "assistant", content)
 
     def create_bundle(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            self.export_log.append("Export Bay is available only in the licensed version.")
+            return
         """Create a portable model export bundle."""
 
         self.export_log.append("Creating model bundle...")
@@ -397,6 +400,8 @@ def create_bundle(self) -> None:
         self.export_status.setText("Export: bundle created")
 
     def quantize_model(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            return
         """Create a quantized FP16 checkpoint when selected."""
 
         mode = self.quant_mode.currentText()
@@ -418,6 +423,8 @@ def quantize_model(self) -> None:
         self.export_status.setText("Export: FP16 checkpoint ready")
 
     def export_hf_package(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            return
         """Create an HF-style MicroGPT package."""
 
         self.export_log.append("Creating HF-style MicroGPT package...")
@@ -433,4 +440,3 @@ def export_hf_package(self) -> None:
         self.export_log.append("Note: this package is MicroGPT model_type, not a llama.cpp-supported Llama model.")
         self.export_status.setText("Export: HF package ready")
 
-
diff --git a/interface/main_window_part18.py b/interface/main_window_part18.py
index 5662263..0a583e4 100644
--- a/interface/main_window_part18.py
+++ b/interface/main_window_part18.py
@@ -8,6 +8,8 @@
 
 class MainWindowPart18:
     def export_llama_adapter(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            return
         """Create a directly loadable Llama-family package when compatible."""
 
         self.export_log.append("Creating Llama-compatible adapter package...")
@@ -23,6 +25,8 @@ def export_llama_adapter(self) -> None:
         self.export_status.setText("Export: Llama adapter ready")
 
     def convert_hf_to_gguf(self) -> None:
+        if not bool(QApplication.instance().property("license_valid")):
+            return
         """Convert an HF-compatible model folder to GGUF through llama.cpp."""
 
         model_dir_text = self.export_model_dir.text().strip()
@@ -92,4 +96,3 @@ def _apply_preset(self, preset: str) -> None:
             self.n_layer.setValue(8)
 
 
-
diff --git a/interface/startup.py b/interface/startup.py
index a8613d8..b116a06 100644
--- a/interface/startup.py
+++ b/interface/startup.py
@@ -34,7 +34,7 @@
 )
 
 
-APP_NAME = "DrunkenBot LLM-IDE"
+APP_NAME = "DrunkenBot-IDE"
 WINDOWS_APP_ID = "DrunkenBot.LLMIDE"
 LOGGER = logging.getLogger(__name__)
 APP_HOME_DIR = Path.home() / ".drunkenbot_ide"
@@ -353,7 +353,7 @@ def _build_ui(self) -> None:
 
         body = QLabel(
             "Startup checks are complete.\n"
-            "Choose how you want to begin with DrunkenBot LLM-IDE."
+            "Choose how you want to begin with DrunkenBot-IDE."
         )
         body.setObjectName("Body")
         body.setAlignment(Qt.AlignLeft)
diff --git a/interface/startup_splash.py b/interface/startup_splash.py
index a8fa826..64c7b02 100644
--- a/interface/startup_splash.py
+++ b/interface/startup_splash.py
@@ -15,7 +15,7 @@ class StartupSplash(QDialog):
 
     def __init__(self) -> None:
         super().__init__()
-        self.setWindowTitle("DrunkenBot LLM-IDE")
+        self.setWindowTitle("DrunkenBot-IDE")
         self.setWindowFlags(Qt.Window | Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint)
         self.setModal(True)
         self.setMinimumSize(560, 760)
@@ -42,7 +42,7 @@ def __init__(self) -> None:
         else:
             logo.setPixmap(pixmap.scaled(118, 118, Qt.KeepAspectRatio, Qt.SmoothTransformation))
             logo.setAlignment(Qt.AlignCenter)
-        title = QLabel("DrunkenBot LLM-IDE")
+        title = QLabel("DrunkenBot-IDE")
         title.setObjectName("Title")
         title.setFont(QFont("Arial", 22))
         header.addWidget(logo)
diff --git a/interface/tabs/dataset_plan_tab.py b/interface/tabs/dataset_plan_tab.py
index 196f550..a9d5ef2 100644
--- a/interface/tabs/dataset_plan_tab.py
+++ b/interface/tabs/dataset_plan_tab.py
@@ -6,6 +6,7 @@
 
 from PySide6.QtCore import Qt
 from PySide6.QtWidgets import (
+    QApplication,
     QCheckBox,
     QComboBox,
     QFormLayout,
@@ -265,6 +266,8 @@ def build_dataset_plan_tab(window) -> QWidget:
     window.external_dataset_download_button = QPushButton("Download latest dataset")
     window._tip(window.external_dataset_download_button, "Download, verify, and extract the latest dataset release into the install folder.")
     window.external_dataset_download_button.clicked.connect(window.download_latest_external_dataset)
+    trial_mode = not bool(QApplication.instance().property("license_valid"))
+    window.external_dataset_download_button.setEnabled(not trial_mode)
     external_form.addRow("Install folder", window._path_row(window.external_dataset_dir, directory=True))
     external_form.addRow("Status", window.external_dataset_version)
     external_form.addRow("", window.external_dataset_download_button)
@@ -287,6 +290,7 @@ def build_dataset_plan_tab(window) -> QWidget:
     window.dataset_stage.setMaximumWidth(240)
     window.include_conversation_datasets = QCheckBox("Online")
     window.include_conversation_datasets.setChecked(False)
+    window.include_conversation_datasets.setEnabled(not trial_mode)
     purpose_row = QWidget()
     purpose_layout = QHBoxLayout(purpose_row)
     purpose_layout.setContentsMargins(0, 0, 0, 0)
@@ -320,6 +324,7 @@ def build_dataset_plan_tab(window) -> QWidget:
     conversation_form.addRow("Custom HF dataset", window.custom_huggingface_dataset)
     window.custom_huggingface_download = QPushButton("Download custom dataset")
     window.custom_huggingface_download.clicked.connect(window._download_custom_huggingface_dataset)
+    window.custom_huggingface_download.setEnabled(not trial_mode)
     window._tip(window.custom_huggingface_download, "Enable the custom dataset and download it during the next dataset preparation run.")
     conversation_form.addRow("", window.custom_huggingface_download)
     window.conversation_sample_limit = window._spin(0, 2_000_000, 20000)
@@ -455,4 +460,3 @@ def populate_default_data_tree(window: Any, root: Path) -> None:
         tree.blockSignals(False)
     if not window.default_data_actions:
         tree.addTopLevelItem(QTreeWidgetItem(["No project/default data files were found.", "", ""]))
-
diff --git a/interface/tabs/dataset_tab.py b/interface/tabs/dataset_tab.py
index 6287428..6a8bfdc 100644
--- a/interface/tabs/dataset_tab.py
+++ b/interface/tabs/dataset_tab.py
@@ -111,7 +111,7 @@ def build_dataset_tab(window) -> QWidget:
     window._tip(window.auto_vocab_label, "The actual vocabulary size selected after reading the corpus.")
     window.min_frequency = window._spin(1, 1000, 2)
     window._tip(window.min_frequency, "Minimum token frequency for tokenizer training. Higher values remove rare fragments and can reduce noise.")
-    window.context_length = window._spin(16, 4096, 128)
+    window.context_length = window._spin(16, 1000, 128)
     window._tip(window.context_length, "Number of tokens per training sequence. Longer context lets the model learn longer dependencies but uses more memory.")
     window.validation_split = window._double_spin(0.0, 0.5, 0.1, 0.01, 3)
     window._tip(window.validation_split, "Fraction of tokens held out for validation. Validation helps detect overfitting during training.")
diff --git a/interface/tabs/export_tab.py b/interface/tabs/export_tab.py
index 3a07eef..8abd403 100644
--- a/interface/tabs/export_tab.py
+++ b/interface/tabs/export_tab.py
@@ -4,6 +4,7 @@
 
 from PySide6.QtCore import Qt
 from PySide6.QtWidgets import (
+    QApplication,
     QComboBox,
     QFormLayout,
     QHBoxLayout,
@@ -84,6 +85,10 @@ def build_export_tab(window) -> QWidget:
     window.gguf_convert_button = QPushButton("Convert HF to GGUF")
     window._tip(window.gguf_convert_button, "Run llama.cpp convert_hf_to_gguf.py for model_core/hf_model when the architecture is supported by llama.cpp.")
     window.gguf_convert_button.clicked.connect(window.convert_hf_to_gguf)
+    window.export_buttons = [bundle_button, quant_button, hf_button, llama_button, window.gguf_convert_button]
+    if not bool(QApplication.instance().property("license_valid")):
+        for button in window.export_buttons:
+            button.setEnabled(False)
     bundle_button.setMaximumWidth(220)
     quant_button.setMaximumWidth(220)
     hf_button.setMaximumWidth(220)
@@ -116,4 +121,3 @@ def build_export_tab(window) -> QWidget:
     window.export_progress = window._thin_progress()
     outer.addWidget(window.export_progress)
     return page
-
diff --git a/interface/tabs/training_tab.py b/interface/tabs/training_tab.py
index 92b3e77..fa0960a 100644
--- a/interface/tabs/training_tab.py
+++ b/interface/tabs/training_tab.py
@@ -113,7 +113,7 @@ def build_training_tab(window) -> QWidget:
     window._tip(window.attention_window, "Sliding attention window. 0 uses full context; higher values restrict attention to recent tokens.")
     window.n_layer = window._spin(1, 64, 4)
     window._tip(window.n_layer, "Transformer layer count. More layers improve capacity and reasoning patterns but slow training.")
-    window.train_context_length = window._spin(16, 4096, 128)
+    window.train_context_length = window._spin(16, 1000, 128)
     window._tip(window.train_context_length, "Training context length in tokens. Must fit your GPU/CPU memory.")
     window.dropout = window._double_spin(0.0, 0.9, 0.1, 0.01, 3)
     window._tip(window.dropout, "Dropout regularization. Higher values reduce overfitting but can slow learning.")
diff --git a/packager.py b/packager.py
index 5d314a8..99bf90a 100644
--- a/packager.py
+++ b/packager.py
@@ -19,7 +19,7 @@
 
 ROOT = Path(__file__).resolve().parent
 OUTPUT_ROOT = ROOT / "packaging" / "artifacts"
-APP_NAME = "DrunkenBot-LLM-IDE"
+APP_NAME = "DrunkenBot-IDE"
 
 
 def _architecture() -> str: