Instantly vs Apollo (2026): Which for Cold Email?
Apollo and Instantly both send cold email, so they get compared. They start from opposite ends. Apollo starts with the list. Instantly starts with the send.
The quick answer: Apollo is a B2B contact database (240M+ contacts) with sequences, a dialer and deals attached, priced per seat. Instantly is a sending engine: connect as many mailboxes as you like, warm them automatically, rotate campaigns across them and read every reply in Unibox, priced by email volume. Pick Apollo if finding the right people is the hard part, Instantly if sending thousands of emails a day without burning domains is. If the hard part is what happens after someone replies, Carly works with both and runs the replies, follow-up, calls and booking from your team’s own Gmail and Outlook.
Instantly vs Apollo at a glance
Prices and limits from each vendor’s US pricing page and help docs on October 4, 2026.
| Apollo | Instantly | Carly | |
|---|---|---|---|
| Starts from | The list: 240M+ contacts, 30M+ companies | The send: many mailboxes, warmed and rotated | The reply: your reps’ own Gmail and Outlook |
| Lead data | Built in; 1 credit per email, 8 per phone number | SuperSearch (450M+ contacts, Instantly’s count) on a separate credits plan | Bring leads from Apollo, a CSV, your forms or your CRM |
| Sending limits | One mailbox per user and 250 sends a day on Free and Basic; Professional lifts both | 5,000 emails a month on Growth, 100,000+ on Hypergrowth, 500,000 on Light Speed | Per-mailbox daily caps and sending windows you set |
| Warm-up and inboxes | Warmup on select plans, paid in credits per mailbox; buy domains and mailboxes with credits | Automated warmup on every plan; buy Google inboxes at $5 to $10 a month | Sends from every rep’s existing Gmail and Outlook accounts |
| Replies | Tracked per sequence; unified inbox groups replies by sentiment | Unibox for every inbox; replying in it starts on Hypergrowth ($97) | One shared team inbox, AI-drafted replies labeled by intent |
| AI agents | AI Assistant; agents and AI lead scoring from Professional | Reply and Sales agents at 5 credits a reply or lead; Deliverability Agent on Hypergrowth; Voice Agent | Drafts and sends replies, follows up, books, updates the CRM |
| CRM | Contacts, accounts and deals; syncs with Salesforce and HubSpot | Hyper CRM, its own subscription | Built-in CRM, or keeps HubSpot, Salesforce or Pipedrive current |
| Calls and SMS | US dialer on paid plans, billed in credits | Calling and SMS in the CRM; Voice Agent for inbound leads | Texts and AI calls to new leads from your business number |
| Pricing model | Per seat, plus pooled credits | Per sending tier; credits, CRM and inboxes billed separately | Free Zapier-style workflows; AI agents from $35/month |
| Entry price | Free plan; Basic $49/seat/mo billed yearly, $65 monthly | Growth $47/mo billed monthly, $37.60 annually; 14-day trial | AI agents from $35/month |
Data: Apollo is the database, Instantly sells one on the side
Apollo’s core product is its data: 240M+ contacts and 30M+ companies, buying signals, waterfall enrichment across outside providers, and a Chrome extension. Credits buy it, 1 per email and 8 per phone number. Free gives 75 credits a month, monthly Basic 2,500 per seat and monthly Professional 4,000. Credits pool across the team and don’t roll over.
Instantly’s SuperSearch is a database Instantly puts at 450M+ B2B contacts. It runs on Instantly Credits, a subscription separate from sending: Growth credits start at $47 a month for 1,500 credits, and a work-email lookup costs about 1.5. Monthly-plan credits expire two months after purchase, and the same pool pays for Instantly’s AI agents.
Per email found, Apollo is cheaper: monthly Basic is $65 for 2,500 credits, about 2.6 cents an email, against roughly 4.7 cents for a work email on Instantly’s Growth credits. Ignore the headline database sizes; each vendor counts records its own way, and both products draw bounce complaints.
Sending and deliverability: Instantly’s home turf
Every Instantly plan connects any number of sending accounts, warms them through Instantly’s private network, and spreads campaigns across them with rotation and bounce detection. You pay for volume, not inboxes: Growth covers 5,000 emails a month, Hypergrowth 100,000+ and Light Speed 500,000 with a dedicated server and IP rotation. There’s no overage charge; you move up a tier. Hypergrowth adds the Deliverability Agent, which watches DNS, blocklists and bounce rates and can pause a campaign.
Apollo caps sending by plan. Free and Basic allow one mailbox per user and 250 sends a day. Professional removes the daily cap (under Apollo’s fair use policy) and lets each user connect any number of Google and Microsoft mailboxes. Warmup is on select plans and charges credits for each mailbox being warmed, as do domain and mailbox purchases and inbox placement tests.
The practical split: three reps sending 50 to 100 personal emails a day fit inside Apollo Basic. A program sending 2,000 a day across a dozen secondary domains belongs on Instantly. Either way, a warmup score only describes the warmup network. Since Google and Microsoft tightened their bulk-sender rules, teams report warmed inboxes landing in spam, so run placement tests before trusting the dashboard.
AI features: who to contact vs working the send
Apollo’s AI decides who to contact and what to say. The AI Assistant works across the product, AI research fills custom fields for credits, and agents and AI lead scoring start on Professional. At ApolloNEXT on September 30, 2026, Apollo launched the Intelligence Layer, which ranks contacts and accounts from Apollo data, your CRM and engagement history. It also showed Builder Studio (describe a workflow, get pages and automations) and Messaging OS (marketing emails and Google Ads audiences from Apollo lists), both with early customers.
Instantly’s AI works the send and the reply, metered in credits. The AI Reply Agent answers interested prospects and shares your Calendly link, with approval or on autopilot, at 5 credits a reply. The AI Sales Agent finds and emails leads on its own at 5 credits a lead, Copilot builds campaigns from a plain-English request, and since September a Voice Agent calls new inbound leads.
CRM and reply handling
Apollo keeps contacts, accounts and deals together, tracks replies against each sequence in a unified inbox that groups them by sentiment, and syncs with Salesforce and HubSpot. Inbound routers and form enrichment come with its Inbound add-on.
Instantly puts every reply from every inbox in Unibox with AI reply labels. On Growth, Unibox is preview-only; replying from it and webhooks start on Hypergrowth. Pipeline, calling and SMS live in Hyper CRM, billed separately.
Both hand the prospect a booking link. Carly’s angle, below, is drafting every answer in one team inbox across all of your reps’ mailboxes and putting the meeting straight on the right rep’s calendar.
What a 3-rep team pays
Josh runs a three-rep team. Here’s the math on public prices, October 4, 2026.
Apollo (per seat)
| Plan | Billed monthly | Billed yearly | What three reps get |
|---|---|---|---|
| Basic | 3 × $65 = $195/mo | 3 × $49 = $147/mo ($1,764/yr) | 7,500 pooled credits a month, one mailbox each, 250 sends a day each |
| Professional | 3 × $99 = $297/mo | 3 × $79 = $237/mo ($2,844/yr) | 12,000 pooled credits a month, more mailboxes, no daily cap, A/Z testing |
| Organization | Yearly only | 3 × $119 = $357/mo ($4,284/yr) | Three-seat minimum |
Instantly (per account)
- Hypergrowth, so the team can reply from Unibox: $97
- Growth credits: $47 (1,500 credits, about 1,000 work emails or 300 AI replies)
- Nine pre-warmed Google inboxes, three per rep: 9 × $10 = $90
- Total: $234 a month billed monthly, or $205.20 billed annually ($77.60 + $37.60 + $90), plus $15 a year per domain
Apollo Basic is the cheapest way for three reps to get data and send modest volume. Instantly is far cheaper per email sent: one $97 plan covers 100,000+ emails a month for the team, while lifting Apollo’s caps means Professional at $297. Running both (Apollo Basic for leads, Instantly Hypergrowth and nine inboxes for sending, no Instantly credits) comes to $382 a month billed monthly. Our Apollo.io pricing breakdown covers every tier.
What users complain about
Apollo (3.1 out of 5 on Trustpilot across 1,346 reviews on October 4):
- Data accuracy: more bounces than advertised, especially outside North America.
- Expiring credits: they reset every cycle, and add-on credits renew until removed.
- Seat math: every seat sits on the same plan, so a researcher pays the sender’s tier.
- Billing and support: slow answers, account lockouts, and downgrades with no refund for unused time.
Instantly (3.3 out of 5 on Trustpilot across about 1,170 reviews):
- Stacked subscriptions: outreach, credits and CRM bill and cancel separately, and reviewers describe one renewing after they cancelled another.
- Paywalled basics: Unibox replies need Hypergrowth, and AI draws on expiring credits.
- Warmup vs real inboxes: healthy warmup scores while live campaigns land in spam.
- Support and a moving interface: slow help mid-campaign, and a redesign still rolling out.
Our Apollo.io review and Instantly review go deeper.
Use both: Apollo for the list, Instantly for the send
Many teams build and enrich the list in Apollo, export it, upload it to an Instantly campaign and send from a rack of warmed secondary inboxes. They get Apollo’s cheaper data without Basic’s one-mailbox, 250-a-day ceiling, and Instantly’s volume without paying for SuperSearch.
The split costs you three things:
- Two bills and two sets of credits, each with its own renewal and expiry.
- Two records of the truth. Apollo has the contact, Instantly has the reply, and your CRM has neither until someone connects them.
- No faster answers. A hot reply in Unibox still waits for a rep to see it, write back and find a time.
That last one is where most outbound pipeline leaks; our sales follow-up statistics show how much rides on the second and third touch.
Carly: the third option when the replies are the bottleneck
Carly is an AI assistant for sales teams that works from the mailboxes, calendars and CRM you already have. It connects to both Apollo and Instantly (paste each API key on the integrations page), and Carly connects to thousands of apps, including HubSpot, Salesforce, Pipedrive, Slack and Gong.
A Tuesday for Michael’s team, with Apollo Basic for lists and Instantly for cold sends:
- 9:50 pm Monday. Claire, an operations director at a regional freight company, replies to an Instantly campaign: “What would this look like for 40 drivers?” A Carly workflow picks up the interested lead, looks up her company in Apollo, creates the deal in HubSpot and drafts an answer with three open slots from Josh’s real calendar.
- 7:05 am. Josh approves the draft from the team inbox, where it sits at the top labeled Interested. Claire picks Thursday, and the meeting lands on Josh’s calendar.
- 1:30 pm. A demo form comes in and routing rules hand it to Emily. Within minutes the lead gets an email and a text from the team’s own address and number, the AI voice agent in Carly Phone calls with the form answers in hand, and the lead books on Emily’s calendar.
- 4:15 pm. After another call, Carly reads Josh’s Gong notes, sends the follow-up and moves the deal stage.
What does the work:
- Sequences from your own mailboxes. Follow-ups go out from each rep’s Gmail or Outlook as replies in the same thread, and stop on their own when the person replies (in any thread) or books. Daily caps, sending windows and unsubscribe headers are built in.
- One shared team inbox for every rep’s mailboxes plus the team’s calls and texts, with assignments, notes, reminders and an “Awaiting reply” view.
- Every reply drafted and sorted as interested, not interested or out of office. Review and send, or let the agent send.
- Booking on the right calendar, across all of your Google and Microsoft calendars at once, or by booking page.
- A CRM that stays current: the built-in CRM, or HubSpot, Salesforce, Pipedrive, Close or Attio.
If your reps send a few hundred personal emails a week, Carly’s sequences may cover the sending, with Apollo Free or Basic kept for data. If you run a high-volume cold program across many domains, keep Instantly for the send and let Carly take the reply. Free Zapier-style workflows; AI agents from $35/month. Carly for teams is set up with you on a short call: book a call with the Carly team.
Instantly or Apollo: which to pick
| Your situation | Pick |
|---|---|
| You need contacts and phone numbers more than sending capacity | Apollo |
| Three reps, under 250 cold emails a day each, from their own mailboxes | Apollo Basic |
| Reps dial as much as they email | Apollo |
| You send thousands of cold emails a day across secondary domains | Instantly |
| You run cold email for clients | Instantly |
| You need the best list and the most volume | Both: Apollo Basic plus Instantly Hypergrowth |
| Prospects reply and wait hours for an answer | Carly, alongside either |
| New inbound leads need an email, a text or a call within minutes | Carly |
If your lists are fine and your emails land but meetings don’t get booked, go with Carly. For the wider field, see Apollo alternatives, Instantly alternatives and our best AI SDR tools.
FAQ
Is Instantly or Apollo better for cold email?
For sending volume, Instantly: any number of warmed mailboxes and 100,000+ emails a month on Hypergrowth for $97. For finding who to email, Apollo: a 240M+ contact database with sequences attached, though Free and Basic cap you at one mailbox and 250 sends a day. If replies are where deals stall, Carly drafts and books from your own Gmail and Outlook.
Can you use Apollo and Instantly together?
Yes, and many teams do: build the list in Apollo, export it, and send through Instantly’s warmed inboxes. Budget for two subscriptions and a way to get replies into your CRM. Carly connects to both, so it can enrich from Apollo, act on Instantly’s interested leads and book the meeting. See what Carly connects to.
Which is cheaper, Instantly or Apollo?
It depends on the job. For three reps, Apollo Basic is $195 a month billed monthly ($147 billed yearly) with 7,500 credits a month. A working Instantly setup (Hypergrowth, Growth credits, nine inboxes) is about $234 a month billed monthly. Per email found, Apollo is cheaper; per email sent, Instantly is.
Which has better data, Apollo or Instantly?
Apollo’s data is its main product: 240M+ contacts, phone numbers and waterfall enrichment, paid from each plan’s credits. Instantly’s SuperSearch claims 450M+ contacts but sits on a separate credits subscription. Reviewers report bounces with both, so verify a sample before a big send. Our AI SDR explainer covers how teams pair data with AI outreach.
What’s an alternative to both Instantly and Apollo?
If the list and the sending work but replies wait and meetings don’t get booked, Carly runs sequences from your reps’ own mailboxes, drafts every reply in one team inbox, texts and calls new leads, and books the right rep. Keep Apollo for data if you like. Book a call with the Carly team to set it up.
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"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
