メール向けAIエージェント

メール向けAIエージェント の比較

価格は各社が公開している開始価格です。無料プランや試用は、価格ページに書いてあるときだけ載せます。

ランキング

仕事への適合、自律性、制御、連携、始めやすさ、情報の公開度で並べています。

価格、機能、要約

1. 1

   Instantly

   Cold email infrastructure and reply help

   Instantly leads because an AI email agent, in the searches that convert, is usually cold outbound: mailboxes, warmup, and a campaign that sends. Growth starts at $47 a month. It is a bad fit for a newsletter to customers you already have.

   料金

   From $47/mo

   Growth starts at $47/mo on the public pricing page (lower if you pay annually). Higher plans raise sending and lead limits. Confirm the live meters on instantly.ai/pricing; the page is revised often.

   主な機能

   Clay, HubSpot, Salesforce, Zapier. Campaigns send on their own once you load leads and copy. A person still owns the offer, the list, and the mailbox health.

   Instantlyの料金と機能/Instantlyの代替

2. 2

   lemlist

   Cold email with a built-in lead database

   lemlist is both the data and the sender. The email plan is shown from $55/mo. Use it when you do not already have Apollo. Use Instantly or Smartlead when you do.

   料金

   From $55/mo

   lemlist.com/pricing shows the email plan at $69/mo struck through to $55/mo, and labels it From $55/mo. Multichannel is shown at $109 struck through to $87. Enterprise is custom. The trial FAQ says 14 days of Multichannel features except in-app calls, plus 200 credits. Last checked 5 October 2026.

   主な機能

   HubSpot, Salesforce, Pipedrive, Clay, Gmail, LinkedIn. Campaigns send on a schedule. The agents draft and enrich. A person still owns the offer.

   lemlistの料金と機能/lemlistの代替

3. 3

   Apollo

   Sequences on top of Apollo's own data

   Apollo's email is a sequence tool welded to the database. It ranks second on access and integrations. Use it when the list and the send should be the same seat. Use Instantly when mailbox volume is the actual problem.

   料金

   Free, then $49/user/mo

   Free plan includes limited credits and sequences. Basic starts at $49 per user/month billed annually ($59 month-to-month). Professional and Organization sit above that. Figures checked against widely published Apollo plan cards; confirm on apollo.io before you buy.

   主な機能

   Salesforce, HubSpot, Gmail, Slack, Outreach. Sequences send on a schedule you set. AI drafts and suggests. A person still builds the list logic and the offer.

   Apolloの料金と機能/Apolloの代替

4. 4

   Reply.io

   Cold email priced by active contacts

   Reply prices email by how many people you can start a sequence with. The annual floor is $49 per user for 1,000 active contacts. Multichannel, which adds LinkedIn, starts higher. Bring a list if the included data credits are not enough.

   料金

   From $49/user/mo billed annually

   Reply's pricing file lists Email Volume from $49 per user/month billed annually for 1,000 active contacts, or $59 per user/month on monthly billing. Higher contact tiers go up the slider, and the largest tiers are contact-sales. Multichannel starts at $89 per user/month billed annually, or $99 monthly. Jason, the AI SDR, starts at $500/month. LinkedIn automation is a $69 per account add-on and calls and SMS are $29 per account. The pricing FAQ offers a 14-day trial. Last checked 5 October 2026.

   主な機能

   Salesforce, HubSpot, Pipedrive, Close, Zapier. Sequences send on a schedule. Jason has a copilot mode and an autopilot mode. A person still owns the offer.

   Reply.ioの料金と機能/Reply.ioの代替

5. 5

   HubSpot Breeze

   Email to people already in the CRM

   Breeze is the marketing-email and CRM-email row. Job fit is lower than Instantly because this page's demand leans outbound, and higher than a pure writing tool because the send and the record are in one place.

   料金

   Free CRM, hubs from $15/seat/mo

   Free CRM includes the Breeze assistant. Marketing Hub Starter is $15/seat/month billed monthly or $9/seat/month billed annually. Professional is a different budget (about $800/mo annual, plus onboarding). Prospecting and customer agents consume credits. Confirm on hubspot.com/pricing.

   主な機能

   HubSpot CRM, Gmail, Slack, Salesforce. The assistant is a copilot. Prospecting and customer agents can carry a task and should still stop for a person on anything customer-facing.

   HubSpot Breezeの料金と機能/HubSpot Breezeの代替

6. 6

   Smartlead

   High-volume cold email infrastructure

   Smartlead is the mailbox layer. Base is $39/mo in the pricing FAQ, with a trial and unlimited connected accounts on the plans they describe. Bring your own list.

   料金

   From $39/mo

   The smartlead.ai/pricing FAQ lists Base at $39/month, Pro at $94/month, Unlimited Smart at $174/month, and Unlimited Prime at $379/month. Annual billing saves 17%. The same FAQ says all plans include a free trial and no credit card is required to start. The plan cards on that page also show lower annual equivalents. Last checked 5 October 2026.

   主な機能

   API, Webhooks, CRM. Sequences send on the schedule you set. A person still writes the offer and the list.

   Smartleadの料金と機能/Smartleadの代替

7. 7

   Artisan Ava

   Autonomous outbound email

   Ava will email as a BDR. That is a real email agent and a custom-priced one. It beats Copy.ai on the tie-break because job fit is higher. It loses to Instantly because you can buy Instantly without a demo.

   料金

   Custom

   No public self-serve price as of 5 October 2026.

   主な機能

   Salesforce, HubSpot. Positioned as an autonomous BDR. Treat the first weeks as supervised sending.

   Artisan Avaの料金と機能/Artisan Avaの代替

8. 8

   Copy.ai

   Drafting the message, not sending it

   Partial fit. Copy.ai writes the email. Something else has to own the domain, the warmup, and the unsubscribe. Do not rank a writer as a sending platform.

   料金

   From $29/mo

   Chat is $29/mo ($24/mo billed annually) with 5 seats and no workflow credits. Growth is $1,000/mo with workflow credits. There is no free plan for the platform. Confirmed against Copy.ai's public prices page.

   主な機能

   Salesforce, HubSpot, Slack. Workflows can run multi-step sales and marketing jobs. Chat alone is a copilot. The interesting autonomy starts on the workflow plans.

   利用者の声

   Trustpilotの古いレビューは、Copy.aiが商品説明に役立った、と書いています。

   その後のレビューは、ログインが動かなくなり、サポートが何か月も返事をせず、更新のあと保存したプロンプトが消えた、と書いています。

   • “Copy Ai is great. It helped me a lot with my product description. But ever since I upgraded, the composition is shorter compared to my free trial.”

     Trustpilot

   • “It had a paid subscription and used it a bit, but my login stopped working. Reached out to support via email and via the website form. No response for months even after several messages.”

     Trustpilot

   • “I was an enthusiastic used and ambassador. then the service just stopped working. nothing works.”

     Trustpilot · A.F.

   Copy.aiの料金と機能/Copy.aiの代替

近いカテゴリ

隣の仕事には別の一覧があります。

• SDR向けAIエージェント
• 営業向けAIエージェント
• リード獲得向けAIエージェント
• コンテンツ制作向けAIツール
• マーケティング向けAIエージェント

よくある質問

すべての製品を同じ6項目で100点満点にします。順位は合計、適合、名前の順です。 方法の全文を読む.