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Sonist vs SpellBook Finance

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sonist compared with SpellBook Finance
Detail SonistSpellBook Finance logo SpellBook Finance
What it doesTrade the words as they're spoken. Sell Magic cards across eBay, ManaPool, and TCGplayer with AI agents
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Freemium
PricingFree: Browse markets and follow live prices. Plus: $29/month includes live transcription, keyword detection, automated prediction-market trading, panic-sell controls, 15-minute AFK sessions, and 1-on-1 support. Pro: $49/month includes everything in Plus plus rare keyword boosting, speaker diarizatio Free tier with core features. Premium: $8/mo or $80/yr for sealed-deals board, arbitrage alerts, and higher price-alert headroom. Free shop with 10,000 listed-card allowance (soft limit).
Key features
  • Keyword detection and meters
  • Speaker diarization
  • Speaker-gated trading
  • Risk checks and IOC order execution
  • Immediate-or-cancel orders with protected fills
  • Panic-sell controls
  • Multiple concurrent live sessions
  • AFK session timeouts
  • Real transaction-backed pricing from TCGplayer market data
  • Cross-marketplace price comparison
  • Sealed product expected value rankings
  • Portfolio tracking with cost basis and opportunity cost measurement
  • AI agent integration for marketplace listing
  • Daily price updates from completed sales
  • Card inventory import from ManaBox or TCGplayer export
  • Desktop card scanner for Mac and Windows
What makes it different
  • 238ms execution from word detection to order submission
  • Guaranteed profit when YES order fills below $1 before repricing
  • Trades run on your own exchange account with encrypted API keys
  • Local speaker engine gates trades to specified speakers only
  • Uses real completed transaction prices instead of listing medians
  • Focuses on sealed product expected value as a financial asset
  • Transparent, publicly reviewed methodology
  • Affiliate revenue does not influence rankings or recommendations
Community votes00
DR (Domain Rating by Ahrefs)9 no change since last check1 no change since last check
Trust Flow (Majestic)64
Citation Flow (Majestic)1912
Referring domains (Majestic)1526

4 details filled in for both companies.

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