The Best HubSpot Integrations & What Each One Fixes

• HubSpot's App Marketplace passed 2,000 apps in 2025. The count won't help you choose.

• Name the problem first. Then pick the app.

• Many fixes work on every plan. Some need Enterprise.

• Every app shares one daily API call pool.

• Add the app that ends your costliest manual work first.

HubSpot announced that its marketplace passed 2,000 apps and 2.5 million active installs. That is the HubSpot app marketplace number of integrations 2025 figure, straight from HubSpot. (Source: "2,000+ Apps. 2.5M+ Active Installs")

For scale, HubSpot said in January 2022 that the marketplace had passed 1,000 integrations. It also said customers installed seven apps on average. (Source: "HubSpot's App Ecosystem Surpasses 1,000 Integrations") So the HubSpot CRM integrations number of apps roughly doubled in under four years.

Treat the count as trivia. A bigger shelf doesn't help you choose. Check the marketplace itself for today's number, then spend your time on the question that matters: which problem are you fixing?

Start with the problem, not the app. For each problem, name the record that has to move, the direction it moves, and the person who fixes it when it breaks. Then check the plan it needs.

The sections below take each problem in turn, with what to test before you commit.

An accounting sync. HubSpot's own QuickBooks Online integration uses data sync to keep customers, products, invoices, and payments in step, so sales and finance stop retyping the same numbers.

Know where it stops. A payment that applies to more than one invoice in QuickBooks does not sync to HubSpot, because HubSpot can't split a payment across invoices. You can't connect a QuickBooks sandbox account, so you test against live data. HubSpot says most non-US QuickBooks accounts can't use invoice sync. And changing the default field mappings needs Data Hub Starter or higher. (Source: "Connect HubSpot and QuickBooks Online")

Test it with one real deal. Create the invoice in HubSpot, record a payment in each system, and check both sides. Then apply one payment to two invoices in QuickBooks and see what happens. If your old billing records live in a system other than QuickBooks, bring them in through a HubSpot migration first, so contacts and invoices match when the sync starts.

Start with HubSpot's own quotes tool, because it does more than most teams expect. HubSpot calls it part of its CPQ, and it needs Revenue Hub Professional or Enterprise. Advanced approvals route a quote to approvers in order, based on quote amount, discount, SKU, billing frequency, or net terms. Those need Revenue Hub Enterprise. (Source: "Set up quote approvals")

Then find the edge. HubSpot's quotes API says one-time discounts, taxes, fees, and payment schedules aren't supported at the quote level. You set discounts and tax rates on individual line items instead. (Source: "Quotes API")

If your pricing needs something on that list, or rules HubSpot's approvals can't express, test a third-party CPQ. Build one quote with a discount and a custom fee, send it, and watch the deal amount in HubSpot. If the numbers don't match across the quote and the deal, you've found the problem before your reps do.

Use a webinar app that writes to HubSpot's marketing events object. Marketing events work on all products and plans, and they hold the registered, canceled, and attended counts for each event. HubSpot lists Zoom, GoToWebinar, Microsoft Teams webinars, and Eventbrite as apps that sync into them. (Source: "Use marketing events")

Read each app's strings before you commit. Zoom's app, for example, needs the Zoom webinar add-on, matches people by email address, and connects one Zoom account to a HubSpot account. (Source: "Connect HubSpot and Zoom")

For any other webinar platform, ask for its HubSpot documentation. Then run a short test: one existing contact, one new contact, one partial attendee, one no-show, and one cancellation. Open the event and each contact afterward. The platform that gets all five right is the one to keep.

Start with HubSpot's deal splits, which share credit for a deal amount between owners. Then pick a commission tool that reads the splits, not only the final deal owner. The deal splits API needs Sales Hub Enterprise, so check your plan before you shortlist anything. (Source: "Deal splits API")

Test it with a messy deal. Close a deal with two owners and a 60/40 split. Edit the amount after it closes. Change an owner. Then check what the commission tool pays on each change. A tool that reads only the closed-won amount can pay on the wrong number as soon as someone edits a deal.

Connect the inbox. HubSpot's connected email works with Gmail and Outlook, and it logs messages to the right contact based on your account's logging rules. Your user needs the Personal email access permission, and View-Only seats can't connect an inbox. (Source: "Connect an individual work email")

The connection is the easy part. The logging rule decides whether replies reach the record. Check which option your account uses, then run one test: email a contact, reply from that address without changing the subject, and open the contact's timeline. Repeat it once for each provider your team uses.

For calls, the choice is HubSpot's built-in calling or a provider's app. Built-in calling is part of Sales Hub and Service Hub. A calling app works on every product and plan, and its calls don't use your HubSpot calling minutes. One limit to know: you can't start a call from a custom object record with a calling app. (Source: "Use a calling app to make and receive calls in HubSpot")

For texts, HubSpot sells SMS add-ons, one for marketing and one for transactional messages. Both send from a US-based number, and both need business registration and carrier approval before the first text. If reps need to start a conversation from a contact record, check each marketplace SMS app for that feature before you buy. (Source: "Set up SMS messaging for transactional communications")

Test both the same way: send one message or place one call that should log, and one that should not. Then open the record and see what arrived.

You need a warehouse sync when a question needs data HubSpot doesn't hold, such as billing, product usage, or ERP records next to your deals. There are two routes. HubSpot's Snowflake Data Share lets you query HubSpot data inside Snowflake with SQL. It needs Data Hub Enterprise and a Snowflake account, and you pay the Snowflake costs. (Source: "Connect HubSpot and Snowflake Data Share")

The other route is an ELT tool such as Fivetran or Airbyte, which pulls HubSpot data through the API on a schedule into the warehouse you already use. It works without Data Hub Enterprise, but it bills by usage and has its own rules for deleted and merged records.

If HubSpot's own reports answer your questions, skip both. A warehouse adds cost and a second place where numbers can disagree.

If leads from your own site's forms go missing, you have two options. The non-HubSpot forms tool works on all products and plans. It needs a static HTML form with an email input, and it ignores hidden fields. It records a submission on every click of the submit button, so one visitor can create a partial and a complete submission.

It also depends on the tracking code. HubSpot points to its Forms API as the alternative for forms the tool can't handle. (Source: "Use non-HubSpot forms")

The Forms API sends each submission to a HubSpot form you've already built. It takes a developer, a test, and a log, because API calls that fail don't fix themselves.

One more thing makes either option easier. Consent text and form blocks tend to repeat across pages. A reusable custom website module can hold them, so a wording change happens once instead of on every page.

Order your HubSpot integrations list by the cost of the manual work it ends. Add one at a time, run its test, and wait a week before you add the next. Here's the order I'd use for a team that sells, bills, and runs events:

Your order may differ. A store that never runs webinars skips row four. A company that bills in another system moves its accounting sync up. The rule stays the same: fix the leak that costs the most first.

Plan for four problems: shared limits, email matching, history, and ownership.

Shared limits come first. Every app in your account draws from one daily API call pool. HubSpot's limits depend on your plan, from 250,000 calls a day on Free and Starter to 1,000,000 on Enterprise, and past a limit HubSpot returns 429 errors. A busy new app can use up the calls your other apps need, so check your API usage after each install. (Source: "API usage guidelines and limits")

Email matching comes second. Many integrations match people by email address, so a typo or a second address creates a stray contact. History comes third. Some apps sync forward from the day you connect, so ask each vendor what happens to older records. Ownership comes last. Name one person who approves property changes and app installs, because a renamed property can quietly break a sync.

Some problems no app covers. When two apps fight over the same field, or your process needs a sync that no marketplace app offers, the answer is a custom HubSpot integration built around your records.

Are HubSpot Integrations Free?

Often the connection is free, but the other tool's plan may not be. Zoom's app works on every HubSpot plan, yet webinars need Zoom's webinar add-on. HubSpot's QuickBooks Online listing says it requires a QuickBooks Online subscription. Check the Requirements box on each marketplace listing for the HubSpot plan, the vendor plan, and the permissions it needs. (Source: "QuickBooks Online on the HubSpot Marketplace")

Can I Install an Integration Without a Developer?

For marketplace apps, yes. You install them from the HubSpot Marketplace and approve the permissions. You need App Marketplace permissions or Super Admin access, and the other tool often needs its own admin sign-in too. A developer is only needed for a custom build, such as a sync that no app covers.

Can an Integration Sync Both Ways?

Some can, and some can't. HubSpot's data sync supports two-way flows for the apps built on it, and the QuickBooks listing lets you sync in, out, or both ways. Plenty of apps sync one way only. Ask each vendor which fields flow in which direction, then test a change on both sides.

How Do I See My Own HubSpot Integrations List?

Click the settings icon, go to Integrations, and open Connected Apps. That page lists the apps installed in your account, and each app has its own settings. Review it every quarter. Remove apps nobody uses, and check who owns each one.

Can Two Apps Update the Same Field?

Yes, and they can overwrite each other. That's a common way to end up with data nobody trusts. Pick one source of truth for each field, and set every other app to read it, not write to it.

How Do I Know an App Is Safe to Connect?

Read what it asks to access before you click Allow. Look for the HubSpot Certified App badge on the listing, and check who built the app and what its reviews say. Let a Super Admin or a named owner approve installs, and remove apps you no longer use.

The best HubSpot integrations depend on where your team spends the most time and what slows down its work. Start with the tools that handle your most important processes, such as billing, communication, lead management, or reporting.

Check what data each integration syncs, whether the sync works both ways, and which features require a higher HubSpot plan. A well-connected setup can save your team time, improve data accuracy, and make everyday work much easier to manage.