AI Cost Ledger

AI Cost Ledger helps you record AI API token usage and estimate USD costs from built-in model pricing. Track input tokens, cached token fields, output tokens, notes, monthly totals, provider totals, and model totals. Built-in pricing covers major US and China model providers, including OpenAI, Claude, Gemini, DeepSeek, Kimi, MiniMax, and Z.ai, with custom pricing for other models. The app stores records locally on the device and does not require an account, API key, analytics SDK, backend, or network connection.