Completely open-source and free (Apache 2.0), with no subscription model; uses local models (such as Ollama) at zero cost; API call fees depend on the chosen LLM provider
Daily free Agent credits, amount unpublished; the free plan is called Starter. The official site only says daily free Agent credits, and how many credits, the daily cap and the monthly total are published neither on the pricing page nor in the official docs (the docs only say Starter users get daily Agent usage credits, with a monthly cap, reset daily). The concrete limits that can be confirmed: (1) Agent can only use Lite build, while Full build needs Core or above; (2) only 1 project can be published, and that published link goes offline automatically after 30 days; (3) published apps carry a mandatory Made with Replit badge, removable only on Core; (4) 2GB workspace storage; (5) there is a separate monthly cloud credit allowance for databases, object storage and deployments, likewise unpublished, reset monthly; (6) no third-party connectors, no Replit AI Integrations, no Plan Mode. The free plan can use the built-in database, can make slides, videos and animations, and can publish private or password-protected deployments. (Read from replit.com/pricing and docs.replit.com on 2026-08-09)
Aider itself is free, the cost of LLM API is determined by the provider chosen by the user, usually ranging from US$10-30 per month (light usage) to US$50-200+ per month (heavy usage)
Replit
Plan
Price
What you get
Core
US$25 / mo
US$25/month monthly list price: includes US$25 in monthly points, 5 collaborators, 2 parallel agents, and removable branding. The US$20 shown by default on the official site is the annual monthly-equivalent price.
Pro
US$100 / mo
US$100/month monthly-billed list price: includes US$100 in monthly credits, 15 collaborators, 50 viewers, 10 parallel agents, 28-day database rollback; annual billing averages US$95/month
Both offer a free plan. Compare paid tiers against your needs.
aider has no public paid plan; Replit starts at about US$25 / mo.
FAQ
Is there a free version of aider?
Yes. Completely open-source and free (Apache 2.0), with no subscription model; uses local models (such as Ollama) at zero cost; API call fees depend on the chosen LLM provider
How much does aider cost?
The cheapest is the plan from aider named API cost (self-selected provider), at about 官方報價（洽詢）.
Does aider support Chinese?
aider only partially supports Chinese.
Is there a free version of Replit?
Yes. Daily free Agent credits, amount unpublished; the free plan is called Starter. The official site only says daily free Agent credits, and how many credits, the daily cap and the monthly total are published neither on the pricing page nor in the official docs (the docs only say Starter users get daily Agent usage credits, with a monthly cap, reset daily). The concrete limits that can be confirmed: (1) Agent can only use Lite build, while Full build needs Core or above; (2) only 1 project can be published, and that published link goes offline automatically after 30 days; (3) published apps carry a mandatory Made with Replit badge, removable only on Core; (4) 2GB workspace storage; (5) there is a separate monthly cloud credit allowance for databases, object storage and deployments, likewise unpublished, reset monthly; (6) no third-party connectors, no Replit AI Integrations, no Plan Mode. The free plan can use the built-in database, can make slides, videos and animations, and can publish private or password-protected deployments. (Read from replit.com/pricing and docs.replit.com on 2026-08-09)
How much does Replit cost?
The cheapest is the plan from Replit named Core, at about US$25 / mo.
Does Replit support Chinese?
Replit has no Chinese interface at this time.
Affiliate Links Notice
📬 Ask More Daily
Price hikes & free-tier cuts — we'll warn you first
