diff --git a/API.md b/API.md
index 4a8e35c..444dd44 100644
--- a/API.md
+++ b/API.md
@@ -65,6 +65,7 @@ Read the **[GETTING STARTED](https://github.com/orbitdb/orbit-db/blob/master/GUI
   * [`write`](#write)
   * [`peer`](#peer)
   * [`closed`](#closed)
+  * [`peer.exchanged`](#peerexchanged)
 
 <!-- tocstop -->
 
@@ -642,3 +643,10 @@ Emitted once the database has finished closing.
 ```javascript
 db.events.on('closed', (dbname) => ... )
 ```
+
+### `peer.exchanged`
+```javascript
+db.events.on('peer.exchanged', (peer, address, heads) => ... )
+```
+
+Emitted after heads have been exchanged with a peer for a specific database. This will be emitted after every exchange, even if no heads are received from the peer, or if all received heads are already present. (This is in contrast with the `replicated` event, which will only fire when new heads have been received.) Note that `heads` here contains heads *received* as part of the exchange, not heads sent.
diff --git a/package-lock.json b/package-lock.json
index a64ff7f..847d7de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -170,6 +170,12 @@
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           "dev": true
         },
+        "lodash": {
+          "version": "4.17.20",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+          "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
+          "dev": true
+        },
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -189,6 +195,12 @@
         "to-fast-properties": "^2.0.0"
       },
       "dependencies": {
+        "lodash": {
+          "version": "4.17.20",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+          "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
+          "dev": true
+        },
         "to-fast-properties": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@@ -197,383 +209,6 @@
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+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
+      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
+    },
     "xmlhttprequest-ssl": {
       "version": "1.5.5",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
diff --git a/src/OrbitDB.js b/src/OrbitDB.js
index ab36d58..abdcaf0 100644
--- a/src/OrbitDB.js
+++ b/src/OrbitDB.js
@@ -250,12 +250,15 @@ class OrbitDB {
   }
 
   // Callback for receiving a message from the network
-  async _onMessage (address, heads) {
+  async _onMessage (address, heads, peer) {
     const store = this.stores[address]
     try {
       logger.debug(`Received ${heads.length} heads for '${address}':\n`, JSON.stringify(heads.map(e => e.hash), null, 2))
-      if (store && heads && heads.length > 0) {
-        await store.sync(heads)
+      if (store && heads) {
+        if (heads.length > 0) {
+          await store.sync(heads)
+        }
+        store.events.emit('peer.exchanged', peer, address, heads)
       }
     } catch (e) {
       logger.error(e)
@@ -270,7 +273,7 @@ class OrbitDB {
     const getDirectConnection = peer => this._directConnections[peer]
     const onChannelCreated = channel => { this._directConnections[channel._receiverID] = channel }
 
-    const onMessage = (address, heads) => this._onMessage(address, heads)
+    const onMessage = (address, heads) => this._onMessage(address, heads, peer)
 
     await exchangeHeads(
       this._ipfs,
diff --git a/test/replicate.test.js b/test/replicate.test.js
index a25be29..83a22b4 100644
--- a/test/replicate.test.js
+++ b/test/replicate.test.js
@@ -152,9 +152,10 @@ Object.keys(testAPIs).forEach(API => {
       await waitForPeers(ipfs2, [orbitdb1.id], db1.address.toString())
 
       let finished = false
-      let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0 }
+      let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0, 'peer.exchanged': 0 }
       let events = []
       let expectedEventCount = 99
+      let expectedPeerExchangeCount = 99
 
       db2.events.on('replicate', (address, entry) => {
         eventCount['replicate'] ++
@@ -178,6 +179,15 @@ Object.keys(testAPIs).forEach(API => {
         })
       })
 
+      db2.events.on('peer.exchanged', (address, entry) => {
+        eventCount['peer.exchanged'] ++
+        events.push({
+          event: 'peer.exchanged',
+          count: eventCount['peer.exchanged'],
+          entry: entry,
+        })
+      })
+
       db2.events.on('replicated', (address) => {
         eventCount['replicated'] ++
         events.push({
@@ -192,7 +202,7 @@ Object.keys(testAPIs).forEach(API => {
         // don't receive more than one event
         setTimeout(() => {
           finished = db2.iterator({ limit: -1 }).collect().length === expectedEventCount
-        }, 200)
+        }, 1000)
       })
 
       return new Promise((resolve, reject) => {
@@ -203,6 +213,7 @@ Object.keys(testAPIs).forEach(API => {
 
               assert.equal(eventCount['replicate'], expectedEventCount)
               assert.equal(eventCount['replicate.progress'], expectedEventCount)
+              assert.equal(eventCount['peer.exchanged'] >= expectedPeerExchangeCount, true, 'insuficcient peer.exchanged events fired')
 
               const replicateEvents = events.filter(e => e.event === 'replicate')
               const minClock = Math.min(...replicateEvents.filter(e => !!e.entry.clock).map(e => e.entry.clock.time))
@@ -242,9 +253,10 @@ Object.keys(testAPIs).forEach(API => {
     it('emits correct replication info on fresh replication', async () => {
       return new Promise(async (resolve, reject) => {
         let finished = false
-        let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0 }
+        let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0, 'peer.exchanged': 0 }
         let events = []
         let expectedEventCount = 512
+        let expectedPeerExchangeCount = 1
 
         // Trigger replication
         let adds = []
@@ -293,6 +305,16 @@ Object.keys(testAPIs).forEach(API => {
           })
         })
 
+        db2.events.on('peer.exchanged', (address, entry) => {
+          eventCount['peer.exchanged'] ++
+          // console.log("[replicate] ", '#' + eventCount['replicate'] + ':', db2.replicationStatus.progress, '/', db2.replicationStatus.max, '| Tasks (in/queued/running/out):', db2._loader.tasksRequested, '/',  db2._loader.tasksQueued,  '/', db2._loader.tasksRunning, '/', db2._loader.tasksFinished)
+          events.push({
+            event: 'peer.exchanged',
+            count: eventCount['peer.exchanged'],
+            entry: entry,
+          })
+        })
+
         db2.events.on('replicated', (address, length) => {
           eventCount['replicated'] += length
           // console.log("[replicated]", '#' + eventCount['replicated'] + ':', db2.replicationStatus.progress, '/', db2.replicationStatus.max, '| Tasks (in/queued/running/out):', db2._loader.tasksRequested, '/',  db2._loader.tasksQueued,  '/', db2._loader.tasksRunning, '/', db2._loader.tasksFinished, "|")
@@ -319,7 +341,7 @@ Object.keys(testAPIs).forEach(API => {
             if (eventCount['replicated'] === expectedEventCount) {
               finished = true
             }
-          }, 100)
+          }, 1000)
         })
 
         const st = new Date().getTime()
@@ -333,6 +355,7 @@ Object.keys(testAPIs).forEach(API => {
             try {
               assert.equal(eventCount['replicate'], expectedEventCount)
               assert.equal(eventCount['replicate.progress'], expectedEventCount)
+              assert.equal(eventCount['peer.exchanged'], expectedPeerExchangeCount)
 
               const replicateEvents = events.filter(e => e.event === 'replicate')
               const maxClock = Math.max(...replicateEvents.filter(e => !!e.entry.clock).map(e => e.entry.clock.time))
@@ -366,9 +389,10 @@ Object.keys(testAPIs).forEach(API => {
     it('emits correct replication info in two-way replication', async () => {
       return new Promise(async (resolve, reject) => {
         let finished = false
-        let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0 }
+        let eventCount = { 'replicate': 0, 'replicate.progress': 0, 'replicated': 0, 'peer.exchanged': 0 }
         let events = []
         let expectedEventCount = 100
+        let expectedPeerExchangeCount = 100
 
         // Trigger replication
         let adds = []
@@ -418,6 +442,15 @@ Object.keys(testAPIs).forEach(API => {
           })
         })
 
+        db2.events.on('peer.exchanged', (address, entry) => {
+          eventCount['peer.exchanged'] ++
+          events.push({
+            event: 'peer.exchanged',
+            count: eventCount['peer.exchanged'],
+            entry: entry,
+          })
+        })
+
         db2.events.on('replicated', (address, length) => {
           eventCount['replicated'] += length
           const values = db2.iterator({limit: -1}).collect()
@@ -457,6 +490,7 @@ Object.keys(testAPIs).forEach(API => {
               assert.equal(eventCount['replicate'], expectedEventCount)
               assert.equal(eventCount['replicate.progress'], expectedEventCount)
               assert.equal(eventCount['replicated'], expectedEventCount)
+              assert.equal(eventCount['peer.exchanged'] >= expectedPeerExchangeCount, true, 'insuficcient peer.exchanged events fired')
 
               const replicateEvents = events.filter(e => e.event === 'replicate')
               assert.equal(replicateEvents.length, expectedEventCount)