OnCallClerk
AI receptionist that answers your calls 24/7 from $29/mo
For small service businesses losing after-hours calls, OnCallClerk is the most straightforward pick — the $29/mo entry includes calendar booking and call transfers, which rivals gate behind pricier plans. Setup is minutes, not weeks. It's perfect for plumbers, HVAC, real estate, and property managers who need 24/7 answering without human overhead. Just know it's English+Spanish only, analytics are thin, and there's no mobile app documented. If you need bilingual answering beyond Spanish, look at DialZara ($99/mo for bilingual) or Goodcall. If you want a full call center with human handoff, this isn't it.
Verified 3d ago · liveness 66/100 · cite: rightaichoice.com/tools/oncallclerk
- Solo tradespeople (plumbers, electricians, HVAC) needing 24/7 call coverage
- Real estate agents and property managers capturing after-hours leads
- Dental and medical practices booking appointments outside office hours
- Small law firms handling client intake 24/7
- Large enterprises requiring custom onboarding, advanced analytics, or multi-language support beyond English/Spanish
- Businesses needing a full-fledged call center with agent handoff to human operators
- Teams that require deep CRM integrations beyond webhook/Zapier (e.g., native Salesforce or HubSpot sync not documented)
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Skip OnCallClerk if you need multi-language answering beyond English and Spanish, or if you require advanced analytics and deep CRM integrations — those aren't on offer here.
Exceeding your plan's call minutes triggers per-minute overage charges; you'll get a notification but it adds up fast during storm surges.
OnCallClerk's $29/mo Entry includes calendar booking and transfers — DialZara charges $99/mo for those, and Rosie starts at $49/mo with fewer features. For a small service business, it's the cheapest way to get 24/7 AI answering. If you need bilingual, DialZara at $99/mo is worth the jump.
In short
OnCallClerk — AI receptionist that answers your calls 24/7 from $29/mo. Best for Solo tradespeople (plumbers, electricians, HVAC) needing 24/7 call coverage, Real estate agents and property managers capturing after-hours leads, Dental and medical practices booking appointments outside office hours. Free to start; paid plans from $29/mo.
What's new in OnCallClerk
Checked 3 days agoAcross the latest 4 updates: 4 news mentions.
Best AI Receptionists Under $100 Per Month (2026)
Positions OnCallClerk as a budget AI receptionist under $100/mo, comparing flat-rate plans against per-minute competitors.
AI vs Human Answering Service for Roofers: Which Wins?
Side-by-side comparison for roofers on storm-surge capacity, insurance handling, cost, and call quality.
How to Handle Post-Storm Call Surges (Roofing Playbook)
Playbook for surviving the 48-hour post-storm call surge, covering why volume spikes and how AI handles unlimited concurrent calls.
How Much Do Roofers Lose to Missed Calls?
Data on missed call costs: job values, miss rates, storm-surge losses, annual leakage, and a low-cost fix.
What people actually say about OnCallClerk — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
3 mentions across 1 source (Product Hunt) · researched Jul 3, 2026.
- +Affordable $29/mo with no contracts or setup fees.
- +Setup under 10 minutes using industry-specific templates.
- +Native Google Calendar and Sheets integrations without Zapier.
- +AI handles natural conversations for lead capture and booking.
- +24/7 availability eliminates missed calls after hours.
- −Almost zero verified user feedback or reviews.
- −No independent validation of call quality or reliability.
- −Minimal community presence — hard to gauge real sentiment.
- −Limited integrations beyond Google suite and webhooks.
- −May not handle complex or multi-line business needs.
- • No hidden costs mentioned by community
- • Potential overage charges for high call volumes not specified
Viability Score
How well maintained and how widely used is OnCallClerk? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: August 2026
How we score →Key Features
- AI-powered call answering with natural conversation
- Industry-specific scripts for 18 industries (plumbing, HVAC, real estate, etc.)
- Urgency triage and routing for after-hours emergencies
- Real-time transcripts and call summaries
- Appointment booking into Google Calendar during call
- Lead capture and auto-logging to Google Sheets
- Call forwarding and transfers
- Instant alerts for urgent calls
- Local or toll-free number selection
- Number porting from existing lines
- Webhook integration for custom workflows
- REST API for agent and number management
- TypeScript SDK for developers
- White-label and resell options for agencies
- English + Spanish language support
About OnCallClerk
OnCallClerk is an AI-powered phone answering platform designed for small and medium businesses that can't afford to miss calls. It replaces a human receptionist with an AI agent that answers instantly, holds natural conversations, captures key details, books appointments, and sends you a clean summary — all without human intervention. Built for tradespeople (plumbers, HVAC, electricians), real estate agents, property managers, salons, dental practices, and law firms, it uses industry-specific scripts pre-tuned for 18 industries, so callers feel like they're talking to someone who knows the business. The setup is a guided wizard: pick your industry, choose a local/toll-free number or port your own, and go live in minutes. No code, no contracts, no setup fees, and you only pay for calls the AI actually answers. The $29/mo Entry plan includes calendar booking (Google Calendar), call transfers, 24/7 coverage, real-time transcripts and summaries — features competitors often gate behind pricier tiers. A free Starter plan includes a phone number and AI agent, and all paid plans come with a 14-day free trial. For developers and agencies, there's a REST API, TypeScript SDK, webhooks, and white-label/resell options. Language support is English and Spanish. Compared to DialZara, Rosie, and Goodcall, OnCallClerk competes on price and simplicity.
Behind the Verdict
OnCallClerk is a purpose-built AI receptionist for small businesses that can't afford to miss calls. Its biggest strength is simplicity: the guided wizard, pre-filled industry templates, and instant number provisioning get you live in an afternoon. The Entry plan at $29/mo is aggressively priced — it includes calendar booking, call transfers, and 24/7 coverage, features that DialZara gates behind $99/mo and Rosie behind even more. For a solo plumber or real estate agent, that's a compelling value. We like the urgency triage — burst pipes get routed to the on-call tech, slow drains book for tomorrow — and the real-time transcripts and summaries keep you in the loop. The 18 industry templates make callers feel heard, which is critical for lead conversion. Weaknesses: language support is only English and Spanish, so if your customers speak Vietnamese, Mandarin, or Tagalog, you're out of luck. Analytics are thin — the features page doesn't detail advanced reporting. There's no mention of a mobile app, so managing calls on the go means using the web dashboard. And heavy call volumes could rack up per-minute overage charges if you're not tracking your usage. That said, for the typical home service business fielding a few dozen calls a day, OnCallClerk is a no-brainer versus a $3,500/mo human receptionist. Larger operations needing multi-language, deep CRM sync, or advanced analytics should look at DialZara or Goodcall. Agencies will appreciate the API and white-label options.
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Real-world workflow fit
Concrete scenarios for the personas OnCallClerk actually fits — and what changes day-one when you adopt it.
Works alone, gets calls at night while sleeping or on a job
Outcome: Set up in 30 minutes with the plumbing template; AI answers after-hours, triages burst pipes to your urgent line (call forwarding), books slow drains for next day, sends transcripts. No missed calls, no wasted time.
Shows homes during the day and gets leads from online listings after hours
Outcome: AI qualifies caller's timeline and budget during the call, books a showing or callback into Google Calendar, and logs lead details to Google Sheets. You follow up within minutes while the lead is still warm.
Post-storm call surge, volume spikes to 100+ calls/day, human answering can't keep up
Outcome: AI answers unlimited concurrent calls (as blog mentions), captures insurance info, schedules storm-response assessments, and routes urgent claims. You only pay for calls answered, so surge costs stay manageable.
Use Cases
- Answer after-hours emergency calls from plumbing customers and dispatch technicians instantly.
- Book property showings and qualify leads for real estate agents while they are with other clients.
- Handle high-volume intake calls for law firms, capturing case details and scheduling consultations.
- Manage appointment scheduling for dental practices over the phone without human receptionists.
- Capture lead details and service requests for HVAC companies and log them into Google Sheets in real time.
- Handle post-storm call surges for roofers, answering every lead and booking storm-response appointments.
- Qualify roofing leads, capture insurance information, and route claims to the right adjuster.
Limitations
- OnCallClerk is English+Spanish only.
- Call limits apply; exceeding them triggers per-minute overage charges.
- The free plan is capped.
- Advanced analytics are not detailed.
- No mobile app is mentioned for managing calls on the go.
- No native deep CRM integrations beyond Google Sheets/Zapier/Webhooks.
- Bilingual support limited to Spanish.
as of 2026-08-20
Verification history
We have re-verified OnCallClerk 6 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
- — re-checked, vendor evidence unchanged
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published OnCallClerk tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Starter
$0/mo
Ideal for
Solo business owner who wants to test AI answering with zero cost; includes a phone number and basic AI agent, capped usage.
What this tier adds
Free entry point — you get a phone number and AI agent with no credit card, but limited features and call minutes.
Entry
$29/mo
Ideal for
Small service business (plumber, realtor) that needs 24/7 answering plus calendar booking and call transfers for $29/mo.
What this tier adds
Adds calendar booking (Google Calendar), call transfers, 24/7 coverage, and 18 industry templates — the core features for most businesses.
Full-feature
$99–$299/mo
Ideal for
Growing business or agency with higher call volumes, wanting API access, webhooks, and more advanced features.
What this tier adds
Unlocks higher call volumes, advanced features (not public), and API/SDK access for custom workflows and white-labeling.
Where the pricing makes sense
The company stage and team size where OnCallClerk's pricing actually pencils out — and where peers do it cheaper.
OnCallClerk's $29/mo Entry includes calendar booking and transfers — DialZara charges $99/mo for those, and Rosie starts at $49/mo with fewer features. For a small service business, it's the cheapest way to get 24/7 AI answering. If you need bilingual, DialZara at $99/mo is worth the jump.
Setup time & first value
How long it actually takes to get something useful out of OnCallClerk — broken out by persona, not the marketing-page minute.
Most users are live in under 5 minutes using the guided wizard: pick industry, choose a number, and go. Plan for 30 minutes to customize scripts and test calls. Agencies building on the API might take a day to integrate.
Switching to or from OnCallClerk
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From a human receptionist: replace the person with OnCallClerk — port your business number, set up forwarding for after-hours and urgent calls, and let the AI handle the rest. No training required.
- →From a traditional answering service: cancel the contract, port your number to OnCallClerk, and use the industry template to capture the same info (appointments, leads, messages) at a fraction of the cost.
- ↗To DialZara or Rosie: export your call logs and Google Sheets data, port your number out, and cancel your plan — no long-term contract, so you can switch anytime.
Integrations
Resources & Guides
Tutorials & Learning
Official links
Tools that pair well with OnCallClerk
Common stack mates teams adopt alongside OnCallClerk, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
Oncallclerk vs Presto Voice
Presto Voice and OnCallClerk serve completely different markets: Presto is an enterprise-grade drive-thru automation for QSR chains (recently adopted by Dairy Queen) with a focus on upselling and revenue lift, while OnCallClerk is a budget-friendly AI phone receptionist for SMBs needing 24/7 call coverage. Choose Presto if you run a multi-location fast-food chain; choose OnCallClerk if you're a solo tradesperson or small practice wanting an affordable virtual assistant.
Oncallclerk vs Truleo
These tools serve entirely different markets. Truleo is a powerful but costly law enforcement intelligence platform for agencies drowning in siloed data. OnCallClerk is an affordable AI receptionist for small businesses wanting to capture every call. If you run a police department, choose Truleo. If you're a plumber, realtor, or dentist, OnCallClerk is the smarter pick. No overlap, no contest.
Oncallclerk vs B Rokratt
Choose OnCallClerk if you're a US-based small business owner (e.g., plumber, realtor) needing 24/7 AI call answering with appointment booking and lead capture at $29/mo. Choose Bürokratt if you're an Estonian resident or e-resident needing free, secure access to government e-services via a single AI assistant. They serve entirely different needs and geographies; your choice depends on whether you need business call handling or public service navigation.
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