Compare AI tools by category
Prices and free plans for AI video, writing, and trading tools, checked on the vendor's site.
Where to start
StackKeel compares AI tools in three categories: video, writing, and stock trading. Each category lists tools by what they're for, with prices and free plans taken from the vendor's own site and the date we checked.
We haven't run hands-on tests yet, so there are no scores. If we couldn't confirm a price, we say so instead of guessing.
Trading pages start with a risk note. We don't predict returns or present any tool as a way to make money.
AI Video
- AI video tools — Compare generators, avatar tools, editors, and voice tools, with prices from each vendor site.
- Best AI video generators — Eight generators compared by job, free plan, and starting price.
- HeyGen review and pricing — HeyGen's free plan and Creator price.
- HeyGen vs Synthesia — Prices and free plans for HeyGen, Synthesia, and Colossyan.
- HeyGen alternatives — Other avatar, video, and voice tools people compare with HeyGen.
AI Trading
- AI trading tools for stocks — Charts, scanners, journals, and automation for stocks, plus a risk note.
- AI trading bots for stocks — What a stock bot, a scan, and a backtest each do.
- Trading journal apps — TradeZella, Edgewonk, Tradervue, and TradesViz.
AI Writing
- AI writing tools — SEO, drafting, grammar, and fiction tools, with confirmed prices only.
- Surfer SEO alternatives — Frase, Scalenut, Semrush, and other tools people use instead of Surfer SEO.