Castello
Financial Analysis
Instant financial analysis at your fingertips.
Like Zillion, Castello is in the Financial Analysis category. Castello is free, while Zillion is free-trial. Worth comparing on the detail page.
We've curated 48 of the best alternatives to Zillion, ranked by feature overlap, topic similarity, user ratings, and popularity. Castello, Kolena AI for Financial Services, and Fefi lead the list as the closest matches.
Updated May 18, 2026
The list includes 1 free alternative, 1 freemium, 1 paid, and 45 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Zillion itself is free-trial, which makes free-trial alternatives the most natural starting point.
Many of these tools cluster around use cases like Data Analysis, Free + From $25/mo, Api, and Business Intelligence — the same problem spaces Zillion addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Zillion.
Ranked by compatibility score
Financial Analysis
Instant financial analysis at your fingertips.
Like Zillion, Castello is in the Financial Analysis category. Castello is free, while Zillion is free-trial. Worth comparing on the detail page.
Financial Analysis
Unlock faster financial workflows with AI automation
1 free and 1 freemium options.
2 free or freemium alternatives to Zillion on /tools/zillion/alternatives.
1 paid option.
1 paid alternative to Zillion on /tools/zillion/alternatives.
24 additional candidates
Castello ranks as the highest-scoring alternative to Zillion, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 1 fully free and 1 freemium alternatives are available, including Castello and Fefi.
Castello is priced differently (free) and sits in the same category (Financial Analysis). View its detail page to compare features, integrations, and reviews side-by-side.
Top Financial Analysis alternatives include Castello, Kolena AI for Financial Services, Fefi, and GETitOUT. These tools share the same primary category and have meaningful topic overlap with Zillion.
Neither Zillion nor Castello has user ratings yet — be the first to review either tool to help future visitors compare them.
Like Zillion, Kolena AI for Financial Services is in the Financial Analysis category. Kolena AI for Financial Services is paid, while Zillion is free-trial. Worth comparing on the detail page.
Financial Analysis
Your AI powered financial dashboard
Like Zillion, Fefi is in the Financial Analysis category. Fefi is freemium, while Zillion is free-trial. Worth comparing on the detail page.
User Personas
Essential marketing tools for professionals
GETitOUT shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Geospatial Analysis
Transform geospatial data into sustainable action.
Picterra shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Task Automation
Turn customer data into business insights with AI
Einstein GPT shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Data Analysis
Transform data into natural language insights.
Arria shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Customer Engagement
Convert leads with AI-powered human-like engagement.
Diyva shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Market Research
AI-driven market intelligence platform
IndexBox shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Vector Databases
The AI Native Vector Database
Weaviate shares 1 topic with Zillion: Free + From $25/mo. Both are free-trial.
Academic Research
AI-powered research assistant for literature reviews and analysis.
Elicit shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Article Writing
Generate any text with AI, images included.
Brain Pod AI - Writer shares 1 topic with Zillion: Free + From $25/mo. Both are free-trial.
Images
Bring creative ideas to life in seconds.
Brain Pod AI - image generator shares 1 topic with Zillion: Free + From $25/mo. Both are free-trial.
Video Repurposing
Unlock your videos' potential across platforms.
Video Tap shares 1 topic with Zillion: Free + From $25/mo. Both are free-trial.
Seo Content
AI-powered copywriting that converts.
ContentEdge shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Data Analysis
AI search engine delivering right answers from internal data.
Nucila shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Academic Writing
AI-powered writing assistant for scientists.
Wisio shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Data Analysis
Bulk web search and no-code analysis with AI
Tomat.ai shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Investment Analysis
Build wealth with AI-powered investment analysis
RAFA shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Quizzes
Create awesome quizzes in minutes, free and easy.
Quiz Maker shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Real Estate Data Analysis
AI-driven real estate strategy for multifamily portfolios.
HelloData shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Chatting
Your AI writing companion for any task.
Your Hana shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Employee Feedback
Revolutionize employee feedback with AI technology.
Soon Pulse shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Sql Queries
Build data apps in minutes.
SQLbuddy shares 1 topic with Zillion: Data Analysis. Both are free-trial.
Dezbor shares 1 topic with Zillion: Data Analysis. Both are free-trial.
