Best AI automation tools for $20 a month or less

Updated 24 Oct 2026 · Prices from vendor pages only · How we rank →

The short answer

Every tool here has a paid plan listed at $20 a month or less on its vendor's pricing page. Zapier comes first: the largest app ecosystem with a free forever plan and simple task-based pricing. The cheapest verified paid plan here is IFTTT Pro ($2.99 per month ($35.88 billed annually)). 3 of the 4 have a free plan we could confirm. Every price below is from the vendor’s own page, checked 22–24 Oct 2026.

Ranked shortlist

Zapier: The largest app ecosystem with a free forever plan and simple task-based pricing. Plan: Professional: $19.99/month billed annually; $29.99/month billed monthly
750 tasks/month; multi-step Zaps, AI by Zapier
Activepieces: A free-forever plan, a flat $20 Plus plan and self-hosting on every tier. Plan: Plus: $20/month flat
10,000 credits, bring your own AI keys
IFTTT: A free-forever plan with 2 Applets, Pro at $2.99 a month billed annually, and AI services on Pro+. Plan: Pro: $2.99 per month ($35.88 billed annually)
20 Applets, multi-action Applets, webhooks
Microsoft Power Automate: Premium is $15 per user a month paid yearly, with a 30-day free trial and attended desktop RPA included. Plan: Premium: $15/user/month
Cloud flows, attended desktop flows (RPA), process mining

Order follows ToolRank’s editorial ranking in Automation & Agents, filtered to tools that fit this page. Anything we couldn’t confirm on a vendor page says “Not yet verified”.

Side by side

Rank	Tool	Relevant plan	Starting price	Free plan	Best for	Main limitation	Last checked
#1	Zapier	Professional: $19.99/month billed annually; $29.99/month billed monthly 750 tasks/month; multi-step Zaps, AI by Zapier	$19.99/month (Professional, billed annually)	Free forever: 100 tasks/month, two-step Zaps, basic access to Agents, Chatbots and MCP	Non-technical teams automating across many SaaS apps	Free plan is 100 tasks/month; costs scale with task volume.	24 Oct 2026
#2	Activepieces	Plus: $20/month flat 10,000 credits, bring your own AI keys	$20/month (Plus)	Free forever, no card: 1,000 credits a month, up to 5 users	Teams who want Zapier-style automation with AI agents and the option to self-host	Credits cap usage; SSO needs the $200 Team plan	22 Oct 2026
#3	IFTTT	Pro: $2.99 per month ($35.88 billed annually) 20 Applets, multi-action Applets, webhooks	$2.99 per month (Pro, $35.88 billed annually)	Free forever: 2 Applets, unlimited Applet runs, free mobile app access	People automating smart-home devices and everyday apps without code	Free plan is limited to 2 Applets; AI services and filters need Pro+; monthly-billing prices were not shown	24 Oct 2026
#4	Microsoft Power Automate	Premium: $15/user/month Cloud flows, attended desktop flows (RPA), process mining	$15/user/month (Premium, paid yearly)	30-day free trial with cloud flows and standard connectors	Microsoft 365 organisations automating cloud apps and Windows desktop tasks	Unattended bots cost $150 per bot a month; prices may vary by country and the page did not show monthly billing	24 Oct 2026

Prices as listed by each vendor on the last-checked date, USD, before tax. Plans and limits change, so follow the sources below.

Who should pick which

Pick Zapier for non-technical teams automating across many SaaS apps (Professional: $19.99/month billed annually; $29.99/month billed monthly); think twice if you run very high volumes and want self-hosting. Pick Activepieces for teams who want Zapier-style automation with AI agents and the option to self-host (Plus: $20/month flat). Watch out: credits cap usage; SSO needs the $200 Team plan. Pick IFTTT for people automating smart-home devices and everyday apps without code (Pro: $2.99 per month ($35.88 billed annually)). Watch out: free plan is limited to 2 Applets; AI services and filters need Pro+; monthly-billing prices were not shown. Pick Microsoft Power Automate for microsoft 365 organisations automating cloud apps and Windows desktop tasks (Premium: $15/user/month). Watch out: unattended bots cost $150 per bot a month; prices may vary by country and the page did not show monthly billing.

FAQ

Which of these is cheapest?

IFTTT Pro ($2.99 per month ($35.88 billed annually)) is the lowest paid price we verified on this list (https://ifttt.com/plans, checked 24 Oct 2026). Check the vendor page for tax, billing period and usage limits.

Which of these have a free plan?

Zapier: Free forever: 100 tasks/month, two-step Zaps, basic access to Agents, Chatbots and MCP; Activepieces: Free forever, no card: 1,000 credits a month, up to 5 users; IFTTT: Free forever: 2 Applets, unlimited Applet runs, free mobile app access.

How were these tools chosen?

They are the tools in ToolRank's rankings with a verified paid plan at or below $20/month (USD), confirmed on the vendor's own website on 22–24 Oct 2026. Tools we could not verify are left out rather than guessed, and anything unconfirmed is marked Not yet verified.

Sources

Zapier: Zapier pricing checked 24 Oct 2026
Zapier: Zapier Agents checked 16 Oct 2026
Activepieces: Activepieces pricing checked 22 Oct 2026
IFTTT: IFTTT plans and pricing checked 24 Oct 2026
Microsoft Power Automate: Power Automate pricing checked 24 Oct 2026
Microsoft Power Automate: Power Automate features (Copilot) checked 24 Oct 2026

Related comparisons

All comparisons →

Profiles: Zapier · Activepieces · IFTTT · Microsoft Power Automate

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