Real-time
Two-way sync
Changes in Apollo.io or Folk CRM instantly reflect in both systems. No stale data, no manual imports.
CRM
Apollo.io to Folk CRM integration — real-time, two-way sync
Keep Apollo.io and Folk CRM in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
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Migrated from MuleSoft
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Apollo.io and Folk CRM
Run Apollo.io and Folk CRM side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.
Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.
Stacksync syncs Contacts, Accounts, People (database records), Sequences in Apollo.io with Reminders, People, Companies, Groups in Folk CRM in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.
Common use cases
- 01 Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.
- 02 Push CRM opportunity stages back into Apollo so reps see pipeline context while sequencing.
- 03 Mirror folk groups into a reporting database to track pipeline and outreach coverage.
- 04 Keep folk and a billing or customer success tool aligned on company records as deals close.
Common sync patterns
Where both track pipeline: deal visibility across systems
Deal stage and value on shared accounts stay visible from either CRM.
Post-acquisition consolidation
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
Migration with a parallel run
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
What you can sync between Apollo.io and Folk CRM
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Apollo.io objects | Folk CRM objects | How this pairing syncs | |
|---|---|---|---|
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Custom fields Group-scoped attributes that receive enriched or computed values from external systems. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. Custom fields on either side are included in the mapping. | |
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | People Contact records; the primary entity synced with outreach and enrichment tools. | Tasks and calls is specific to Apollo.io and People to Folk CRM — each maps to any object or custom field on the other side. | |
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Companies Organization records linked to people and kept aligned with billing or CS systems. | Contacts is specific to Apollo.io and Companies to Folk CRM — each maps to any object or custom field on the other side. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Groups Shared workspaces that organize contacts; group membership is often the field integrations act on. | Accounts is specific to Apollo.io and Groups to Folk CRM — each maps to any object or custom field on the other side. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Notes Free-text context attached to people and companies, readable for reporting. | People (database records) is specific to Apollo.io and Notes to Folk CRM — each maps to any object or custom field on the other side. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Reminders Follow-up items that can be created from external triggers. | Sequences is specific to Apollo.io and Reminders to Folk CRM — each maps to any object or custom field on the other side. |
How changes propagate between Apollo.io and Folk CRM
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Apollo.io Folk CRM Interval-based propagation
DetectionStacksync polls Apollo.io for changes on an incremental schedule, reading only records changed since the previous pass. Polling on updated-at timestamps.
DeliveryEach detected change is written to Folk CRM through its API, with automatic retries and rate-limit backoff.
Folk CRM Apollo.io Sub-second propagation
DetectionFolk CRM notifies Stacksync of record changes through webhook events. Webhook subscriptions for record events, with polling of list endpoints as a fallback.
DeliveryEach detected change is written to Apollo.io through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Apollo.io: Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls.
- Folk CRM: Subject to the platform's API rate limits.
What ships with Apollo.io ⇄ Folk CRM
Connect Apollo.io and Folk CRM for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Folk CRM connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io or Folk CRM data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Apollo.io or Folk CRM record.
Observability
Monitoring
Track your Apollo.io ⇄ Folk CRM sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Apollo.io and Folk CRM.
How the Apollo.io and Folk CRM connectors work
Apollo.io
- Integration surface
- REST API
- Authentication
- API key (passed in request headers); master keys unlock account-wide endpoints
- Change detection
- Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream
- Capabilities
- read · write
- Rate limits
- Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls
Folk CRM
- Integration surface
- REST API
- Authentication
- API key (Bearer token)
- Change detection
- Webhook subscriptions for record events, with polling of list endpoints as a fallback
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's API rate limits
How it works
How to connect Apollo.io to Folk CRM — three steps, no code
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
- 01
Connect your apps
Authenticate Apollo.io and Folk CRM with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Apollo.io
connected
Folk CRM
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io and Folk CRM objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
objects · Apollo.io ⇄ Folk CRMCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Apollo.io Folk CRMCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and Folk CRM integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and Folk CRM: authenticate both systems, choose the objects to sync (such as Apollo.io's Custom fields and Tasks and calls), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Apollo.io and Folk CRM connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Apollo.io–Folk CRM integration in-house.
-
Yes — Stacksync ships production-grade connectors for both Apollo.io and Folk CRM. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
-
Change detection on Apollo.io: Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream. On Folk CRM: Webhook subscriptions for record events, with polling of list endpoints as a fallback. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Apollo.io side: Contacts, Accounts, People (database records), Sequences, plus custom fields where Apollo.io exposes them. On the Folk CRM side: Reminders, People, Companies, Groups. Stacksync auto-detects both schemas and converts types between the two systems.
-
Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
SECURITY
Security teams trust Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
SOC 2 Type II
ISO 27001
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GDPR
CCPA
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→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
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