PromptSpend vs Lavender

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

PromptSpend compared with Lavender
Detail	PromptSpend	Lavender
What it does	LLM API cost calculator and comparison tool	AI email coach that helps sales teams write better emails and get more replies
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Open source	Freemium
Pricing	Free	Email Coach: free. Ora: $500 per agent per month at launch; build agents for free, pay when you launch with 1k emails per month to 4k+ contacts per year.
Key features	Estimate LLM API costs for 109 models Compare pricing across 16 providers Paste prompt and see cost comparison Free tier information for each model Optional email price alerts Data processed on device, not transmitted Available as native iPhone and Android apps Pricing API available VS Code extension	Email analysis and real-time coaching AI-generated email drafts Salesforce and CSV integration Automatic email sending at scale Chrome extension Email inbox learning Email certification course
What makes it different	Pricing automatically re-checked every morning against tracked sources Completely free with no accounts or ads required Pasted text stays on your device and is never transmitted Open source MIT licensed codebase Covers 109 models from 16 providers in a single comparison	Analyzes billions of emails to understand what works Powered by advanced AI including OpenAI and self-hosted LLMs Learns from your specific emails to personalize coaching Ora automatically researches and writes personalized emails SOC2-certified and GDPR-compliant for security and privacy
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	7 no change since last check	71 no change since last check
Trust Flow (Majestic)	3	14
Citation Flow (Majestic)	19	42
Referring domains (Majestic)	48	2675

5 details filled in for both companies.

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