Try to retain users who did not subscribe

backend/apps/cloud/src/common/templates/en/subscribe-reminder.html

@@ -0,0 +1,22 @@
+Hey there,<br /><br />
+
+You signed up for Swetrix a couple of days ago and set up your project — nice!
+But it looks like you haven't started your free trial yet.<br /><br />
+
+The trial is 14 days, no credit card required, and gives you full access to
+everything Swetrix offers — unlimited features, no restrictions.<br /><br />
+
+<a href="{{subscribeUrl}}" target="_blank">Start your free trial</a><br /><br />
+
+Here's what you get:<br />
+<ul>
+  <li>Web analytics that don't require cookie banners</li>
+  <li>Error tracking and session analysis</li>
+  <li>Custom events, funnels, and goals</li>
+  <li>Privacy-first reCAPTCHA alternative</li>
+</ul>
+
+If you have any questions or need help, just reply to this email.<br /><br />
+
+Andrii Romasiun<br />
+Founder, Swetrix

backend/apps/cloud/src/mailer/letter.ts

@@ -23,4 +23,5 @@ export enum LetterTemplate {
   OrganisationInvitationUnregistered = 'organisation-invitation-unregistered',
   SocialIdentityLinked = 'social-identity-linked',
   NoEventsAfterSignup = 'no-events-after-signup',
+  SubscribeReminder = 'subscribe-reminder',
 }

backend/apps/cloud/src/mailer/mailer.service.ts

@@ -134,6 +134,11 @@ const metaInfoJson = {
       en: () => 'Need help setting up Swetrix?',
     },
   },
+  [LetterTemplate.SubscribeReminder]: {
+    subject: {
+      en: () => 'Your Swetrix trial is waiting for you',
+    },
+  },
 }
 
 interface Params {

backend/apps/cloud/src/task-manager/task-manager.service.ts

@@ -1114,7 +1114,7 @@ export class TaskManagerService {
     const users = await this.userService.find({
       where: {
         isActive: true,
-        // we don't want to send the reminder for people who for example used it long time ago, then removed their projects and now are kinda counted as "new users"
+        planCode: Not(PlanCode.none),
         created: Between(weekAgo, twoDaysAgo),
         noEventsReminderSentOn: IsNull(),
       },
@@ -1163,6 +1163,50 @@ export class TaskManagerService {
     })
   }
 
+  @Cron(CronExpression.EVERY_DAY_AT_10AM)
+  async remindUsersToSubscribe() {
+    const weekAgo = dayjs.utc().subtract(1, 'week').toDate()
+    const twoDaysAgo = dayjs
+      .utc()
+      .subtract(NO_EVENTS_REMINDER_DELAY_DAYS, 'days')
+      .toDate()
+
+    const users = await this.userService.find({
+      where: {
+        isActive: true,
+        planCode: PlanCode.none,
+        hasCompletedOnboarding: true,
+        created: Between(weekAgo, twoDaysAgo),
+        subscribeReminderSentOn: IsNull(),
+      },
+      select: ['id', 'email'],
+    })
+
+    if (_isEmpty(users)) {
+      return
+    }
+
+    const subscribeUrl = `${this.configService.get('CLIENT_URL')}/subscribe`
+    const sentOn = dayjs.utc().format('YYYY-MM-DD HH:mm:ss')
+
+    await mapLimit(users, REPORTS_USERS_CONCURRENCY, async (user) => {
+      try {
+        await this.mailerService.sendEmail(
+          user.email,
+          LetterTemplate.SubscribeReminder,
+          { subscribeUrl },
+        )
+        await this.userService.update(user.id, {
+          subscribeReminderSentOn: sentOn,
+        })
+      } catch (reason) {
+        this.logger.error(
+          `[CRON WORKER](remindUsersToSubscribe) Failed to process user ${user.id}: ${reason}`,
+        )
+      }
+    })
+  }
+
   @Cron(CronExpression.EVERY_2_HOURS)
   async deleteOldShareInvitations() {
     const minDate = dayjs.utc().subtract(PROJECT_INVITE_EXPIRE, 'h').toDate()

backend/apps/cloud/src/user/entities/user.entity.ts

@@ -274,6 +274,10 @@ export class User {
   @Column({ type: 'timestamp', nullable: true })
   noEventsReminderSentOn: Date
 
+  // the date when the "you haven't subscribed yet" reminder email was sent
+  @Column({ type: 'timestamp', nullable: true })
+  subscribeReminderSentOn: Date
+
   @Column('varchar', { length: 15, nullable: true })
   subID: string
 

backend/migrations/mysql/2026_03_10_subscribe_reminder.sql

@@ -0,0 +1 @@
+ALTER TABLE `user` ADD COLUMN `subscribeReminderSentOn` timestamp DEFAULT NULL;