diff --git a/Notesnook.API/Jobs/DeviceCleanupJob.cs b/Notesnook.API/Jobs/DeviceCleanupJob.cs
new file mode 100644
index 0000000..1c3ddeb
--- /dev/null
+++ b/Notesnook.API/Jobs/DeviceCleanupJob.cs
@@ -0,0 +1,64 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using Quartz;
+
+namespace Notesnook.API.Jobs
+{
+    public class DeviceCleanupJob : IJob
+    {
+        public async Task Execute(IJobExecutionContext context)
+        {
+            ParallelOptions parallelOptions = new()
+            {
+                MaxDegreeOfParallelism = 100,
+                CancellationToken = context.CancellationToken,
+            };
+            Parallel.ForEach(Directory.EnumerateDirectories("sync"), parallelOptions, (userDir, ct) =>
+            {
+                foreach (var device in Directory.EnumerateDirectories(userDir))
+                {
+                    string lastAccessFile = Path.Combine(device, "LastAccessTime");
+
+                    try
+                    {
+                        if (!File.Exists(lastAccessFile))
+                        {
+                            Directory.Delete(device, true);
+                            continue;
+                        }
+
+                        string content = File.ReadAllText(lastAccessFile);
+                        if (!long.TryParse(content, out long lastAccessTime) || lastAccessTime <= 0)
+                        {
+                            Directory.Delete(device, true);
+                            continue;
+                        }
+
+                        DateTimeOffset accessTime;
+                        try
+                        {
+                            accessTime = DateTimeOffset.FromUnixTimeMilliseconds(lastAccessTime);
+                        }
+                        catch (Exception)
+                        {
+                            Directory.Delete(device, true);
+                            continue;
+                        }
+
+                        // If the device hasn't been accessed for more than one month, delete it.
+                        if (accessTime.AddMonths(1) < DateTimeOffset.UtcNow)
+                        {
+                            Directory.Delete(device, true);
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        // Log the error and continue processing other directories.
+                        Console.Error.WriteLine($"Error processing device '{device}': {ex.Message}");
+                    }
+                }
+            });
+        }
+    }
+}
\ No newline at end of file
diff --git a/Notesnook.API/Notesnook.API.csproj b/Notesnook.API/Notesnook.API.csproj
index 1888779..859cb00 100644
--- a/Notesnook.API/Notesnook.API.csproj
+++ b/Notesnook.API/Notesnook.API.csproj
@@ -17,6 +17,8 @@
     <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Https" Version="2.2.0" />
     <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.9.0-alpha.2" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.8.1" />
+    <PackageReference Include="Quartz" Version="3.5.0" />
+    <PackageReference Include="Quartz.AspNetCore" Version="3.5.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Notesnook.API/Startup.cs b/Notesnook.API/Startup.cs
index 048b9ee..b923ce4 100644
--- a/Notesnook.API/Startup.cs
+++ b/Notesnook.API/Startup.cs
@@ -48,11 +48,13 @@ using Notesnook.API.Authorization;
 using Notesnook.API.Extensions;
 using Notesnook.API.Hubs;
 using Notesnook.API.Interfaces;
+using Notesnook.API.Jobs;
 using Notesnook.API.Models;
 using Notesnook.API.Repositories;
 using Notesnook.API.Services;
 using OpenTelemetry.Metrics;
 using OpenTelemetry.Resources;
+using Quartz;
 using Streetwriters.Common;
 using Streetwriters.Common.Extensions;
 using Streetwriters.Common.Messages;
@@ -216,6 +218,23 @@ namespace Notesnook.API
                     .WithMetrics((builder) => builder
                             .AddMeter("Notesnook.API.Metrics.Sync")
                             .AddPrometheusExporter());
+
+            services.AddQuartzHostedService(q =>
+            {
+                q.WaitForJobsToComplete = false;
+                q.AwaitApplicationStarted = true;
+                q.StartDelay = TimeSpan.FromMinutes(1);
+            }).AddQuartz(q =>
+            {
+                q.UseMicrosoftDependencyInjectionJobFactory();
+
+                var jobKey = new JobKey("DeviceCleanupJob");
+                q.AddJob<DeviceCleanupJob>(opts => opts.WithIdentity(jobKey));
+                q.AddTrigger(opts => opts
+                    .ForJob(jobKey)
+                    .WithIdentity("DeviceCleanup-trigger")
+                    .WithSimpleSchedule((s) => s.RepeatForever().WithInterval(TimeSpan.FromDays(30))));
+            });
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.