Side by side
Fill A Form AI vs Instafill
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Fill out forms in 1-click with smart AI agent
AI-powered PDF form filler for swift, accurate paperwork.
Primary task
Form filling
Form filling
Pricing
Unknown
Freemium · Free + from $19.99/mo
Pricing details
Not documented — check the provider
Free + from $19.99/mo
Billing cycle
Not documented
Monthly
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Google Sheets
Chrome
Source rating
No rating recorded
5.0 / 5 · 7 ratings
Catalog views
2.5k
2.5k
Estimated monthly traffic
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Catalog imported
30 Aug 2026
30 Aug 2026
Listed strengths
- One-click auto-fill functionality
- Minimizes data entry errors
- Learns from past forms
- Pulls answers from own data
- Manages multiple form templates
- Automatic data population
- Swift document completion
- Elimination of human errors
- Suitable for various sectors
- Handles complex documents
Listed limitations
- Limited to web forms
- Only integrates with Google Sheets
- Reliant on user's previous data
- Doesn't support other knowledge bases
- Requires Chrome extension
- Only works with PDFs
- No mention of API
- No offline functionality
- Focused on form filling only
- No document creation capabilities