Two-way sync
Changes in Apollo.io or Gladly instantly reflect in both systems. No stale data, no manual imports.
Keep Apollo.io and Gladly in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
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 Sequences, Deals (Opportunities), Tasks and calls, Custom fields in Apollo.io with Agents, Topics, Tasks, Customer profiles in Gladly 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.
Deal stage and value on shared accounts stay visible from either CRM.
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
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 | Gladly objects | |
|---|---|---|
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Topics Categorization applied to conversations; the key dimension for contact-driver reporting. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Tasks Follow-up work items created from external triggers or synced for workload reporting. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Customer profiles The central entity; merges identifiers like email, phone, and order IDs, which syncs use for matching. | |
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Conversations Each customer's continuous timeline; status and outcomes sync to CRMs and warehouses. | |
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | Conversation items Individual messages across voice, SMS, chat, and email attached to the conversation. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Agents User records used to attribute work in CX analytics. |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Gladly connection.
Changes in Apollo.io or Gladly instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Apollo.io or Gladly data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Apollo.io or Gladly record.
Track your Apollo.io ⇄ Gladly sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Apollo.io and Gladly.
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.
Authenticate Apollo.io and Gladly with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Apollo.io and Gladly 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.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and Gladly: authenticate both systems, choose the objects to sync (such as Apollo.io's Accounts and People (database records)), map fields visually, and changes propagate both ways in milliseconds — no code required.
Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. Gladly: REST API. Authentication: API tokens used with basic authentication tied to an agent email. Stacksync manages authentication, retries, and rate limits on both sides.
Apollo.io: The API exposes both prospecting search endpoints and CRM-style CRUD endpoints for contacts, accounts, and deals. Gladly: Customer profiles are built to merge external identifiers (email, phone, order numbers), which is what integrations key on when matching records from other systems. Stacksync's field mapping accounts for these differences between Apollo.io and Gladly without custom code.
Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Apollo.io and Gladly records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Apollo.io and Gladly connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Apollo.io–Gladly integration in-house.
Yes — Stacksync ships production-grade connectors for both Apollo.io and Gladly. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Apollo.io and Gladly.