diff --git a/elixir/plug/app/lib/plug_example.ex b/elixir/plug/app/lib/plug_example.ex
index 15def3ef..125eda34 100644
--- a/elixir/plug/app/lib/plug_example.ex
+++ b/elixir/plug/app/lib/plug_example.ex
@@ -19,12 +19,12 @@ defmodule PlugExample do
     raise "Whoops!"
   end
 
-  get "/heartbeats" do
-    Appsignal.heartbeat("custom-heartbeat", fn ->
+  get "/cron" do
+    Appsignal.CheckIn.cron("custom-cron-checkin", fn ->
       :timer.sleep(3000)
     end)
 
-    send_resp(conn, 200, "Heartbeat sent!")
+    send_resp(conn, 200, "Cron check-in sent!")
   end
 
   get "/custom_instrumentation" do
diff --git a/nodejs/express-redis/app/src/app.ts b/nodejs/express-redis/app/src/app.ts
index 73e68c71..37b7b040 100644
--- a/nodejs/express-redis/app/src/app.ts
+++ b/nodejs/express-redis/app/src/app.ts
@@ -1,7 +1,7 @@
 import express from "express"
 import { createClient } from "redis"
 import ioredis from "ioredis"
-import { setTag, setCustomData, expressErrorHandler, WinstonTransport, heartbeat } from "@appsignal/nodejs"
+import { setTag, setCustomData, expressErrorHandler, WinstonTransport, checkIn } from "@appsignal/nodejs"
 import { trace } from "@opentelemetry/api"
 import cookieParser from "cookie-parser"
 import winston from "winston"
@@ -113,12 +113,12 @@ app.get("/route-param/:id", (req, res) => {
   res.send(`Route parameter <code>id</code>: ${req.params.id}`)
 })
 
-app.get("/heartbeat", async (req, res) => {
-  await heartbeat("custom-heartbeat", () => 
+app.get("/cron", async (req, res) => {
+  await checkIn.cron("custom-cron-checkin", () => 
     new Promise((resolve) => setTimeout(resolve, 3000))
   )
   
-  res.send("Heartbeat sent!")
+  res.send("Cron check-in sent!")
 })
 
 app.get("/fetch", async (req, res, next) => {
diff --git a/python/flask/app/app.py b/python/flask/app/app.py
index d58c65b7..b788a913 100644
--- a/python/flask/app/app.py
+++ b/python/flask/app/app.py
@@ -40,6 +40,7 @@ def home():
         <li><a href="/hello/world"><kbd>/hello/&lt;name&gt;</kbd> &rarr; Use parameterised routing</a></li>
         <li><a href="/metrics"><kbd>/metrics</kbd> &rarr; Emit custom metrics</a></li>
         <li><a href="/custom"><kbd>/custom</kbd> &rarr; Use sample data helpers (send a POST request with JSON for params!)</a></li>
+        <li><a href="/cron"><kbd>/cron</kbd> &rarr; Send a cron check-in</a></li>
         </ul>
     """
 
@@ -99,14 +100,14 @@ def metrics():
 
     return "<p>Emitted some custom metrics!</p>"
 
-@app.route("/heartbeat")
-def heartbeat():
-    from appsignal import Heartbeat
+@app.route("/cron")
+def cron():
+    from appsignal.check_in import Cron
 
-    with Heartbeat("custom-heartbeat"):
+    with Cron("custom-cron-checkin"):
         sleep(3)
 
-    return "<p>Sent a heartbeat!</p>"
+    return "<p>Sent a cron check-in!</p>"
 
 @app.route("/custom", methods=["GET", "POST"])
 def custom():
diff --git a/ruby/sinatra-puma/app/app.rb b/ruby/sinatra-puma/app/app.rb
index 377b3582..261f17b2 100644
--- a/ruby/sinatra-puma/app/app.rb
+++ b/ruby/sinatra-puma/app/app.rb
@@ -13,8 +13,8 @@
       <li><a href="/error?time=#{time}">Error request</a></li>
       <li><a href="/stream/slow?time=#{time}">Slow streaming request</a></li>
       <li><a href="/stream/error?time=#{time}">Streaming request with error</a></li>
-      <li><a href="/heartbeat?time=#{time}">Custom heartbeat</a></li>
       <li><a href="/errors?time=#{time}">Multiple errors with custom instrumentation</a></li>
+      <li><a href="/cron?time=#{time}">Custom cron check-in</a></li>
     </ul>
   HTML
 end
@@ -73,10 +73,10 @@ class AnotherCustomError < StandardError
   end
 end
 
-get "/heartbeat" do
-  Appsignal.heartbeat("custom-heartbeat") do
+get "/cron" do
+  Appsignal::CheckIn.cron("custom-cron-checkin") do
     sleep 3
   end
 
-  "Heartbeat sent!"
+  "Cron check-in sent!"
 end