Pro Features

BiBi Keyboard Pro builds on the OSS version with more advanced capabilities for power users.

Overview

Pro includes these exclusive features:

• Offline Traditional Chinese conversion: convert results to Traditional Chinese automatically
• Hotwords management: provider-aware hotword adaptation to improve recognition for proper nouns
• Hotword enhanced replacement: replace similar-sounding fragments with target hotwords via phoneme matching
• Automatic hotword learning: create pending hotwords from corrections after dictation, with optional AI-assisted filtering
• Hotword stats: view trigger frequency and hit stats to keep improving your hotword list
• AI Assistant: trigger voice commands with wake words, preset keywords, and fuzzy matching
• Input field context: AI post-processing can reference nearby text around the cursor for better continuity
• App-specific prompts: automatically switch AI prompt preset by foreground app
• Continuous speaking mode: VAD auto start/stop without manual control
• Omni-direction cursor sliding: enhanced cursor control with 4-direction sliding
• WebDAV auto backup: cloud sync settings across devices
• Regex post-processing: apply regex rules for text post-processing
• Advanced UI theming: more color customization options

Offline Traditional Chinese Conversion Pro

Automatically converts Simplified Chinese transcripts to Traditional Chinese.

Highlights

• Smart conversion: offline conversion algorithm
• Seamless: runs automatically without hurting recognition speed
• Global: works for all providers and input scenarios

How to use

1. Open BiBi Keyboard Pro settings
2. Go to Settings → Input Settings → Pro features → Convert to Traditional Chinese after recognition
3. Choose a rule:
   • Standard
   • Taiwan usage
   • Hong Kong usage

Note

Conversion applies after all other text processing (including AI post-processing), ensuring final output is Traditional Chinese.

Hotwords Management Pro

Manage custom hotwords to improve recognition of proper nouns, brand names, names, etc.

Highlights

• Multi-provider support: auto-adapts hotword formats per ASR provider; selected local models now support hotwords too
• Before + after recognition: hotwords first participate in recognition according to provider support; when enhancement is enabled, Pro also runs a pronunciation-similarity fallback after recognition
• Target word + aliases: each hotword has up to 3 alias slots. The target word always occupies the first alias slot, and you can add 2 extra aliases
• Aliases participate in phoneme matching: both the target word and extra aliases are matched after recognition; matches are replaced with the target word
• Unified adaptation: for providers without native hotword support, hotwords are structured and injected into recognition prompt parameters
• Hotword stats: view trigger frequency and hit stats to iteratively tune your hotword list
• Linked with AI Assistant: AI Assistant keywords can be auto-synced into the hotword list to reduce duplicate maintenance

How to use

1. Open BiBi Keyboard Pro settings
2. Go to Settings → ASR Settings → Result Optimization (Pro)
3. Add/import hotwords (supports batch import from clipboard)
4. Long-press a hotword chip to edit aliases (target | alias 2 | alias 3)
5. Enable Hotword enhanced replacement if needed
6. Save to apply
7. Open the hotword management page to review trigger frequency/hit stats and refine your list based on results

Avoid too many hotwords. Per-provider limits apply and excessive lists may hurt performance.

How it takes effect

Mode	Before recognition	After recognition
Enhanced replacement off	Hotwords participate according to the provider's hotword support; quality depends on the provider	No phoneme fallback replacement
Enhanced replacement on	Hotwords still participate according to provider support	Target word and aliases join phoneme matching, then matches are replaced with the target word

Automatic hotword learning

When enabled, Pro compares a committed voice result with your subsequent correction and tries to extract content suitable for the hotword list.

1. Open Settings → ASR Settings → Result Optimization (Pro)
2. Enable “Automatically learn hotwords”
3. Optionally enable “Use AI to learn hotwords”; this requires a working LLM configuration
4. Dictate through modified Fcitx5 / Trime, the latest IME Bridge, or an accessibility-assisted floating ball, then correct a recognition mistake
5. Return to “Learned hotwords awaiting confirmation” to approve or remove candidates

By default, a new candidate waits for manual confirmation; learning the same correction again confirms it automatically. If both “Automatically confirm learned hotwords” and “Use AI to learn hotwords” are enabled, an AI-approved candidate can be added after the first correction. Candidates found by local rules still require a second occurrence or manual confirmation.

Companion versions

Modified Fcitx5 / Trime report corrections through optional AIDL function. Other third-party IMEs and the floating ball can use the latest LSPosed/LSPatch IME Bridge module or the floating ball accessibility calling method to trigger hotword learning.

Privacy and false learning

Password, email, URL, phone, and no-personalized-learning fields are excluded. With AI learning enabled, only the changed fragment and a small amount of context are sent to the selected LLM, never the full input field; local rules remain available when the LLM fails; possible false learning, can be combined with manual confirmation to avoid accidentally adding temporary rewrites or common words as hotwords.

Alias examples

• Fix similar-sounding words: target word 音素, extra aliases 因素 and 严肃. If the transcript contains 因素, it is replaced with 音素.
• Shortcut phrase input: target word xxxx@qq.com, extra alias primary email. When you say "primary email" and it is recognized, it is replaced with the real email address.

Suggestion

Enhanced replacement is only best for Chinese and English. For other languages, it may not work properly. It is best for proper nouns and frequent misrecognitions. Adding too many common words may cause unwanted replacements for similar-sounding text.

What’s new (more convenient)

• Clear all + undo: clear your hotwords in one tap, with an "Undo" action in the snackbar
• Add from selection menu: select any text in any app, then choose "Add hotword to BiBi Keyboard" to add it instantly

Providers that support hotwords

Provider	Support	Max count
Volcengine	✅	100 tokens (bidirectional streaming) / 5000
DashScope	✅	10000 tokens
Soniox	✅	8000 tokens
SiliconFlow	✅	almost unlimited (SenseVoice/TeleSpeech not supported)
StepAudio	✅	hotword array only; no extra context injection
OpenAI	✅	depends on model
Gemini	✅	almost unlimited
GLM ASR	✅	100
MiMo	✅	supports context injection
ElevenLabs	❌	-
Qwen3-ASR	✅	suggested limit: 100
FunASR Nano	✅	suggested limit: 100
Other local models	❌/depends on engine	depends on engine capability

Local hotwords

When using Qwen3-ASR or FunASR Nano, changing hotwords may require the local model to be prepared again before the new list fully takes effect.

Input Field Context Pro

When using AI post-processing from the main keyboard, Pro can send text around the cursor as reference to the LLM. This helps the model understand continuity, terminology, and tone. When IME Bridge is enabled, floating-ball recordings can use the current input-field context too. See IME Bridge Module for setup and privacy boundaries.

How to use

1. Open Settings → AI Post-processing
2. Enable Use input field context (Pro)
3. Dictate from the main keyboard with AI post-processing enabled. To use it from the floating ball, also enable Settings → UI & Interaction → Floating Settings → IME bridge mode

Privacy

This sends nearby input-field text to the selected LLM provider as reference. Enable it only when you trust that provider and the current content is appropriate to send.

Scope

Input field context applies to AI post-processing after main-keyboard dictation and to floating-ball dictation when IME Bridge is enabled. MiMo multimodal ASR can also use Pro context information to improve proper nouns and scene-specific terms.

AI Assistant Pro

Trigger voice commands with a wake word, so AI can directly handle translation, writing, editing, summarization, and more.

Highlights

• Wake-word trigger: say the wake word at the beginning of speech to enter AI Assistant flow
• Preset modes: enable multiple presets at once (for example translation/writing/editing), then match by keywords
• Fuzzy matching: wake words and preset keywords support fuzzy matching to reduce trigger failures caused by minor slips
• Customizable: customize wake words, keywords, and prompts

How to use

1. Open Settings → AI Post-processing
2. Enable AI Assistant (Pro)
3. Configure wake words and preset keywords
4. Speak in the form of "wake word + command" to trigger (for example: "Dian Dian, translate this into English")

Continuous Speaking Mode Pro

Based on VAD (Voice Activity Detection): automatically starts on speech and stops on silence.

Highlights

• Auto start: after tapping mic, recording starts when speech is detected
• Auto stop: stops when silence is detected and runs recognition
• Continuous: multiple rounds without tapping repeatedly
• Tunable: configurable silence window and sensitivity

How to use

1. Open the BiBi Keyboard Pro panel
2. Add the continuous mode button under Settings → Input Settings → Custom keyboard layout, then toggle it on the keyboard
3. Start speaking
4. Tune VAD parameters:
   • Silence window: 0.5-3s (default 1.5s)
   • Sensitivity: 1-10 (default 5)

The floating ball also supports continuous speaking mode, which is useful for dictating multiple segments in the current app or while using another IME. It keeps listening locally and submits each segment after silence. And you can toggle the switch in the floating ball menu.

Notes

• Continuous mode keeps the mic listening longer and increases battery usage.
• In very noisy environments it may false-trigger; consider switching back to press-and-hold.
• It may take a word or two to detect speech and start recording; try to use locally captured pre-trigger audio to reduce dropped beginnings.

Omni-direction Cursor Sliding Pro

Enables omni-direction cursor movement via sliding on the space bar.

How to use

1. Enable Settings → Input Settings → Pro features → Cursor sliding mode
2. On the keyboard, start from the space key area and swipe up to trigger cursor sliding
3. The mic icon turns into four directional arrows
4. Swipe up/down/left/right to move the cursor; the cursor follows your finger position

WebDAV Auto Backup Pro

Automatically backs up all settings to WebDAV storage for multi-device sync.

Highlights

• Scheduled backup
• Multi-device: restore on another device by signing in with the same account

How to use

1. Open BiBi Keyboard Pro settings
2. Go to Settings → Backup
3. Enable Auto backup
4. Fill in WebDAV:
   • Server URL: e.g. https://dav.example.com
   • Username
   • Password
   • Backup interval
5. Check backup status and last backup time

Note

WebDAV backup content is the same as manual backup. Only one config file is stored on the server.

Regex Post-processing Pro

Apply regex rules to recognition results for advanced text transformations.

Highlights

• Full Java regex support
• Chained rules: apply multiple rules in order
• Templates: one-tap common templates with auto-filled notes
• Notes: notes are for display/management only (do not affect matching)

How to use

1. Open settings
2. Go to Settings → ASR Settings → Result Optimization (Pro)
3. Enable and tap Add rule (or use Templates)
4. Fill in:
   • Pattern: regex
   • Replacement: replacement text ($1, $2, etc.)
   • Options: ignore case, multiline, etc.
   • Note: a label for list display (does not affect behavior)
5. Save; rules apply sequentially

Note

By default, regex post-processing runs after AI post-processing. If you enable "Run regex before AI post-processing", the regex-processed text becomes the AI input, which is useful when you want to clean fixed noise before asking AI to rewrite it.

App-specific Prompt Pro

This feature is only available in Pro

Assign different AI post-processing prompt presets per app. Example: use "General post-process" for chat apps, "Basic polishing" for notes, and "Extract to-dos" for task tools.

How to use

1. Open Settings → AI Post-processing
2. Tap "App-specific Prompt (Pro)"
3. Enable "App-specific Prompt"
4. Tap "Add app" and select a prompt preset for that app

Notes

This requires enabling BiBi Keyboard’s accessibility service to detect the foreground app. It does not read your chat content or screen text.

Advanced UI Theming Pro

On top of Material 3 dynamic color, Pro adds more color customization options.

What’s included

OSS:

• Material 3 dynamic colors

Pro adds:

• Built-in theme colors: pick theme colors independent of system wallpaper
• AMOLED black mode: use a deeper black background in dark mode
• Monet toggle: choose whether to follow wallpaper dynamic colors
• Key color customization: choose default, built-in, or custom colors as the theme seed

How to use

1. Open settings
2. Go to Settings → Theme mode (Pro)
3. Configure:
   • Appearance: system / light / dark / AMOLED black
   • Monet: whether to use wallpaper dynamic color
   • Key color: default, built-in color, or custom color
   • Color style / spec: adjust the generated theme palette

Note

Choosing a custom key color overrides pure Material 3 dynamic color behavior. Restore the default key color to return to the default theme behavior.

Get Pro

Pro is distributed via Google Play.

See:

• Activation
• Comparison