Kerlig™ AI Writing App for Mac vs Writefull X

Comparing the features of Kerlig™ AI Writing App for Mac to Writefull X

Feature
Kerlig™ AI Writing App for Mac
Writefull X

Capability Features

Academic Text Support
AI-Powered
Built-in Actions
ProofreadWrite Slack repliesChat with documentsFix spelling and grammarImprove writingSummarizeMake shorterConvert to TypeScript interfaceYouTube Script CreatorCareer coachSimplify
Chat History Availability
Chat Interface
Citations in Output
Copy and Paste
Custom Actions
Custom Tone of Voice
Data Encryption
Document Attachments
Edit Messages
Focused on Academic Writing
Headless Mode
Multi-step Research
Multiple AI Writing Widgets
Native macOS App
No Data Storage
On-device Data Storage
Preset Customization
Reasoning Models
Regenerate Responses
Shortcuts & Hotkeys
Team Deployment via CLI
Text Formalization

Integration Features

Attachment Types
DocumentsEbooksImages
Local Model Operation
Apple Foundation ModelsOllamaLM Studio
Multiple AI Provider Integration
Apple Foundation ModelsOpenAIAnthropicGoogle GeminiGroq CloudOllamaOpenRouterx AIPerplexityLM StudioMistralAmazon Bedrock
Number of Supported Models
350
Third Party App Support
SlackJiraEmail (generic)
Writefull for Overleaf Integration
Writefull for Word Integration

Limitation Features

API Key Support
Character Limit Free
2000
Fair Use Policy
Limited to Mac Platform
macOS Support
Apple Silicon & Intel, macOS 12+
No Export Formats Mentioned
No Mention of API Access
Token Costs Not Included

Other Features

Support Response Time
24h email support
Support Response Time Team
Priority Zoom & email support

Pricing Features

App Updates Period
Lifetime (October Deal) or 1 year
Basic License Price
$49 (October Deal, reg. $247)
Basic License Seats
1
Free Tier
Lifetime Updates
No Payment Required
No Subscription Required
Pro License Price
$79 (October Deal, reg. $467)
Pro License Seats
2
Refund Policy Duration
14-day money back guarantee
Team License
$297/once
Team License Seats
10