StackCost

Find the cheapest way to combine your AI coding subscriptions

Problem

One developer juggles an annual Zhipu Max plan, Kimi Max, Codex Plus, and DeepSeek Flash as a fallback, while agonizing over upgrading GLM V2 Pro to Max because the upgrade is irreversible and renews at over 4,000 RMB. Others can't even figure out whether Plus resets every 5 hours or weekly. Nothing helps people reason about which plans to keep, upgrade, or drop.

Solution

Users enter their existing plans, monthly/annual fees, limits, and reset rules, plus weekly actual usage (manually or imported). The tool computes the true cost of the current stack, wasted quota, and the optimal combination, then alerts on upgrade/downgrade thresholds and renewal dates.

Users

Heavy individual developers and small engineering teams stacking multiple AI coding tools

MVP

Built-in price and limit templates for mainstream AI coding plans; cost and waste calculation from entered usage; stack comparison and recommendations; renewal and upgrade/downgrade alerts; shareable read-only report

Revenue

Free tier for 2 plans; Pro subscription for unlimited plans, alerts, and team sharing; affiliate commissions from subscription links

Why now

AI coding plan options exploded while their rules keep changing and reset logic is confusing, creating visible anxiety; the rules data can be maintained manually, no model costs required