Klenty and Apollo.io both come up when people look for a way to find prospects and reach them. Here is how they compare on price, data, sending, channels and AI, using facts from each vendor’s own site, last checked October 1, 2026.
Short answer. Klenty is best for B2B SDR teams that mix cold email with heavy cold calling and want it all inside their CRM workflow. Apollo.io is best for sales teams that want a contact database, sequences and a dialer in one per-seat platform.
At a glance
Pricing
| Klenty | Apollo.io | |
|---|---|---|
| Starting price | From $60/month billed quarterly | Free plan, then from $65/seat/month |
| Free plan | No | Yes. $0 with 75 credits per seat per month (900 per year), 2 sequences, 250 emails per day, Gmail mailboxes only; stays free with no time limit. |
| Trial | 14-day free trial, no credit card needed, full access to all features, up to 200 emails to prospects during the trial | 14-day trial on Basic and Professional; the trial includes 75 credits and access to most features of the selected plan. |
| Plans | Starter: $60/month billed quarterly (no monthly billing offered on the page) ($50/month billed yearly) · 15,000 contacts and 75,000 emails per month at the base tier; higher tiers: 25,000 contacts / 125,000 emails ($72 yearly, $90 quarterly), 50,000 / 250,000 ($125 yearly, $150 quarterly), 100,000 / 500,000 ($320 yearly, $400 quarterly), 200,000 contacts via sales. Email deliverability (custom domain tracking, random intervals, volume control), analytics, API, Zapier, A/B testing, personalization Growth: $85/user/month billed quarterly (no monthly billing offered on the page) ($70/user/month billed yearly) · Everything in Starter plus 200 calling minutes, cold calling, number auto-rotation, AI voicemail and IVR detection, 1-click-to-call dialer, social selling, SMS automation, CRM integrations, sales stage automation Plus: $119/user/month billed quarterly (no monthly billing offered on the page) ($99/user/month billed yearly) · Everything in Growth plus 1,000 calling minutes, 4,000 data credits (phone + email), account-based selling, Action AI, call coaching, AI battlecards, live transcription, AI call scorecard Add-on: Parallel & Power Dialer: $45/user/month · Parallel and power dialing | Free: $0 ($0) · 75 credits per seat per month (900 per year), 2 sequences per team, 1 mailbox per user, 250 daily email sends, AI writing 5,000 words per month, Gmail only, API access Basic: $65/seat/month (monthly billing) ($49/seat/month billed annually) · 2,500 credits per seat per month (30,000 per year on annual billing), unlimited sequences, 1 mailbox per user, 250 daily email sends, deliverability suite and email warmup, domain and mailbox purchasing, CRM integrations, US dialer (credits apply), AI writing 250,000 words per month Professional: $99/seat/month (monthly billing) ($79/seat/month billed annually) · 4,000 credits per seat per month (48,000 per year on annual billing), unlimited sequences and A/Z testing, unlimited Google and Microsoft mailboxes + 5 SMTP mailboxes per user, unlimited daily sends, AI agents, AI lead scoring, call recordings and AI insights (4,000 mins), AI writing 800,000 words per month Organization: Annual only (the monthly view shows $149/seat/month marked 'Annual Only') ($119/seat/month billed annually, minimum 3 seats) · 6,000 credits per seat per month (72,000 per year), unlimited Google and Microsoft mailboxes + 15 SMTP mailboxes per user, SSO, custom reports, use your own LLM API key, AI writing 1,000,000 words per month |
Features side by side
| Klenty | Apollo.io | |
|---|---|---|
| Lead data | Plus plan includes 4,000 credits (phone + email); no standalone database described on the pricing page | Built-in database; homepage states access to 240M contacts and 30M companies. Email = 1 credit, phone number = 8 credits. Pricing table also lists Google Maps Business Search. |
| Warm-up | Not listed on its site | Deliverability Suite and Email Warmup on paid plans (Basic and up); homepage mentions domain warming, inbox rotation and reputation monitoring. |
| Sending inboxes | Email deliverability features listed: custom domain tracking, random intervals, email volume control | 1 mailbox per user on Free and Basic; unlimited Google and Microsoft mailboxes + 5 SMTP per user on Professional, + 15 SMTP on Organization. Domain and mailbox purchasing on paid plans. |
| 'Social selling' on Growth; LinkedIn appears in multichannel cadences, but the site does not say whether LinkedIn steps are automated or manual tasks | Sales engagement page lists multi-channel sequence steps across email, call and networking platforms; FAQ says Apollo integrates with LinkedIn. No LinkedIn automation details stated. | |
| Calls, SMS, WhatsApp | Click-to-call, parallel and power dialers (calling minutes included in Growth/Plus), SMS automation, 'Execute WhatsApp follow-ups in 1 click' | US dialer on paid plans (1 credit per 30 seconds); Advanced Dialer add-on $119/team/month billed annually ($149 billed monthly) with international, parallel and power dialer and local presence. SMS and WhatsApp not mentioned. |
| AI writing | Agentic Cadences: AI researches accounts across 150+ public data sources and writes personalized emails, subject lines, openers and CTAs per prospect | AI writing with monthly word allowances (5,000 to 1,000,000 words by plan); AI Assistant builds sequence steps and copy. |
| Replies / inbox | Action AI executes next steps after conversations; AI call coaching, objection detection and scorecards. No AI email reply classification stated | Unified Inbox listed; homepage says agents research, build lists, write outreach, follow up and book meetings. AI reply handling not specifically described. |
| CRM | Salesforce, HubSpot, Pipedrive, Zoho, MS Dynamics (CRM integrations from Growth plan) | Salesforce, HubSpot, Pipedrive (paid plans); Outreach, SalesLoft, SendGrid, Mailgun, Slack, LLM integrations (MCP); homepage claims 200+ integrations. |
| API | API connections and Zapier included from Starter | API access listed on Free, API enrichment on paid plans, 'All other APIs' on higher tiers. FAQ says advanced or custom integrations via API are available on Custom plans. |
| Agencies | Not listed on its site | Not listed on its site |
Facts from each vendor’s own pricing and product pages, last checked October 1, 2026: Klenty, Apollo.io. Prices change often, so check before you buy.
Where Klenty stands out
- Strong calling stack: dialers, number rotation, AI voicemail detection, call coaching
- Email, calls, SMS and WhatsApp follow-ups in one cadence
- Native integrations with Salesforce, HubSpot, Pipedrive, Zoho and MS Dynamics
- High email volumes on Starter (75,000 emails/month at the base tier)
- 14-day trial without a credit card
Limitations
- No free plan
- No monthly billing shown: annual or quarterly only
- Calling, SMS and CRM integrations start at the Growth plan ($70/user/month yearly)
- Data credits only on the Plus plan
Where Apollo.io stands out
- Large built-in contact database (240M contacts, 30M companies stated) combined with sequencing in one tool
- Permanent free plan with credits, 2 sequences and API access
- Built-in dialer, call recording and meeting tools on paid plans
- Email warmup, deliverability suite and domain and mailbox purchasing included from Basic
- Integrations with Salesforce, HubSpot and Pipedrive plus MCP for LLMs
Limitations
- Priced per seat; the Organization plan requires a minimum of 3 seats and is annual only
- Unused credits expire each billing cycle and do not roll over
- Free and Basic plans are limited to 1 mailbox per user and 250 daily email sends
- Phone numbers cost 8 credits each and dialer minutes consume credits
And if you don’t have a list yet?
Both tools expect you to decide who to contact. If you sell to small or local businesses, or you want the targeting and the writing done for you, LeadGen.tools reads your website, finds the companies and the person who decides at each one, and writes a different email for every prospect. Free plan, no card.
FAQ
Is Klenty cheaper than Apollo.io?
By listed starting price: Klenty from $60/month billed quarterly, Apollo.io free plan, then from $65/seat/month. Limits per plan differ, so compare what each plan includes.
Does Klenty or Apollo.io have a free plan?
Klenty: no free plan listed. Apollo.io: Yes. $0 with 75 credits per seat per month (900 per year), 2 sequences, 250 emails per day, Gmail mailboxes only; stays free with no time limit..
What is the main difference between Klenty and Apollo.io?
They differ most on: warm-up. Klenty is best for B2B SDR teams that mix cold email with heavy cold calling and want it all inside their CRM workflow. Apollo.io is best for sales teams that want a contact database, sequences and a dialer in one per-seat platform.
Related comparisons
See it on your own business. Paste your website and watch LeadGen.tools find your best customers, the person who decides at each one, and write the emails. Free, no card. Analyze your website →