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FollowUpThen

What it is

FollowUpThen is an email reminder and personal follow-up assistant. To schedule a reminder, put a date or time before its email address; it accepts thousands of formats, including intervals, specific dates and recurring schedules. Add it in BCC to keep a reminder private to the sender, or in CC to send a due follow-up to everyone in the To field. Upcoming reminders can be managed in the web app, by emailing [email protected], or through a daily agenda. The basic reminder workflow does not require inbox access. Listed add-ons include response detection, SMS notifications, persistent tasks and automatic cancellation when a reply arrives. FollowUpThen also lists Zapier connections and Google Calendar features. Its free plan allows 50 active follow-ups per month. The Base Plan costs $5 a month, and a 14-day trial is listed. The service is available on Android, iOS and the web; its email-address-based workflow also works on phones, PCs and tablets.

For and against

For

  • Schedule specific, interval-based and recurring reminders.
  • BCC reminders stay private to the sender.
  • Manage reminders in a web app or daily agenda.
  • Free plan includes 50 active follow-ups per month.
  • Works on Android, iOS and the web.

Against

  • Free plan is limited to 50 active follow-ups monthly.
  • Base Plan costs $5 a month.
  • Support and operations retain searchable, unencrypted email headers and subjects.

The verdict

FollowUpThen turns dates and times in an email address into reminders, with options for private or group follow-ups. Check its message-retention and header-storage details if privacy is a priority.

Who it suits

It suits people who want to schedule follow-ups from email without connecting an inbox. Teams or individuals can use CC reminders to notify everyone in an email’s To field.

Plans and prices

Free

Free

50 active followups per month

Base annual

$4a month, billed yearly

Unlimited followups · attachments · calendar integration · tasks

Team

$4a month

Base Plan · individual skill budgets · centralized billing · team data ownership

Base monthly

$5a month

Unlimited followups · attachments · calendar integration · tasks

Base Plan

$5a month

Basic functionality · attachments · calendar integration · tasks

Skills

Priced on request

Optional à la carte add-ons · examples include response detection, SMS and calendar integration

Every plan, in full

On the record

API status
The core FollowUpThen API is still being developed and has not been released as a ready public API.help.followupthen.com · read 15 Oct 2026
Auto-Cancel skill
Auto-Cancel can cancel followups on the same email thread.followupthen.com · read 15 Oct 2026
Autocomplete
An autocomplete feature can be configured for FollowUpThen addresses.followupthen.com · read 15 Oct 2026
Calendar integration
A calendar feed lets paid users manage followups on an external calendar, while Google Calendar refreshes can take several hours.help.followupthen.com · read 15 Oct 2026
Company founded
LinkedIn lists FollowUpThen as founded in 2010 with 2–10 employees.linkedin.com · read 15 Oct 2026
Company headquarters
Crunchbase lists FollowUpThen's headquarters in San Jose, California, United States.crunchbase.com · read 15 Oct 2026
Date formats
The service accepts thousands of relative and absolute date formats in reminder addresses.help.followupthen.com · read 15 Oct 2026
Documentation
The help center documents setup, scheduling, time formats, accounts, teams, premium features, response detection and SMS.help.followupthen.com · read 15 Oct 2026
Email access
The service says no inbox connection is required for its basic email reminder workflow.followupthen.com · read 2 Oct 2026
Encryption and retention
The help page says follow-up message bodies are stored with 128-bit encryption and email contents are automatically deleted between four weeks and six months after a follow-up is sent.help.followupthen.com · read 2 Oct 2026
Exchange limitation
Microsoft Exchange must allow IMAP connections for inbox-linked features to work.help.followupthen.com · read 15 Oct 2026
Extension API
An open extensions API is described as a way to build, deploy and share inbox extensions, with early access available by request.help.followupthen.com · read 15 Oct 2026
Features
Listed add-ons include response detection, SMS notifications, recurring reminders, persistent tasks and automatic cancellation when a reply arrives.followupthen.com · read 2 Oct 2026
Follow-up management
Users can manage upcoming follow-ups in a web app, email [email protected], or receive a daily agenda.followupthen.com · read 2 Oct 2026
Funding
Crunchbase lists one funding round with Y Combinator as the investor.crunchbase.com · read 15 Oct 2026
GDPR and data export
The GDPR page says users can delete their account and export their follow-ups as a portable CSV, and that a data processing agreement for EU customer data is available on request.help.followupthen.com · read 2 Oct 2026
Group reminders
Placing FollowUpThen in CC sends a follow-up to everyone in the To field when it is due.followupthen.com · read 2 Oct 2026
Inbox access
Connecting an inbox is optional except for features such as response detection, which reads headers rather than message content.help.followupthen.com · read 15 Oct 2026

The review

FollowUpThen is an email-based reminder service for people who want to schedule follow-ups without connecting an inbox. It is best for individuals and small groups who organize work through email; the trade-off is a focused tool with a modest free quota and privacy choices worth weighing.

Overview

Put a date or time before FollowUpThen’s email address in a message to schedule a reminder. It recognizes thousands of formats, including intervals, specific dates and recurring reminders. That keeps scheduling close to the conversation, but makes it less suited to people who want a broad task or project workspace.

Use BCC for a reminder that stays private to its sender, or CC to send a due follow-up to everyone in the message’s To field. Upcoming follow-ups can be managed in a web app, by emailing [email protected], or through a daily agenda. Basic email reminders require no inbox connection, a useful boundary for people wary of granting email access.

Key features

Listed add-ons include response detection, SMS notifications, recurring reminders, persistent tasks and automatic cancellation when a reply arrives. The product also lists Zapier, which it says connects to 4000+ other apps, and Google Calendar features for managing follow-ups. These options can extend an email-centered workflow, but the add-ons make the cost and plan choice important for users who need more than basic reminders.

The help page says reminder message bodies are stored with 128-bit encryption and automatically deleted between four weeks and six months after a follow-up is sent. Privacy mode deletes message bodies and attachments when a reminder is scheduled, while retaining the subject and headers for threading. For support, debugging and system operations, email headers and subjects are saved in an unencrypted searchable format. The company says it undergoes an annual security audit by a Google-approved third-party firm using manual and automated penetration testing. Users can delete their account and export follow-ups as a portable CSV; a data processing agreement for EU customer data is available on request.

Pricing

The free plan costs nothing and allows 50 active followups per month, free forever. It suits light personal use, but the cap can constrain anyone maintaining a larger queue.

The Base Plan costs $5 a month, billed $5/mo (monthly). It includes basic functionality, attachments, calendar integration, tasks, cancellation and recurring followups. It is the straightforward paid choice for users who need those capabilities, though it does not remove the need to choose specific optional add-ons.

Skills offers optional à la carte add-ons, with examples including response detection, SMS and calendar integration. Its terms say billed $2~20/mo, with custom pricing. That structure may suit people who need selected extras, but is less predictable than a single fixed plan.

A 14-day trial is offered. The published pricing note also says paid plans start at $4/mo; the Base Plan is priced separately at $5 a month.

Platforms

FollowUpThen is available on Android, iOS and the web. The company says its email-address-based service works on phones, PCs, tablets and other devices, so the reminder workflow is not tied to one device type.

Who it's for

Choose it if you want to schedule personal nudges or shared email follow-ups without connecting an inbox, and value BCC privacy, a daily agenda or a simple email-driven queue. It is less compelling for people who need a full sales engagement system or want message content deleted immediately by default: privacy mode offers that deletion for bodies and attachments, but subjects and headers remain, and searchable headers and subjects are retained for operations.

Pros and cons

  • Pro: Dates and times in an email address can schedule one-off or recurring reminders without an inbox connection, keeping the basic workflow close to the message.
  • Pro: BCC and CC support private reminders and reminders sent to everyone in the To field, respectively.
  • Pro: Follow-ups can be managed in a web app, by email or through a daily agenda.
  • Con: The free plan is capped at 50 active followups per month, which can be restrictive for a busy queue.
  • Con: Privacy mode retains subjects and headers, and the service saves headers and subjects in unencrypted searchable form for operational purposes.
  • Con: Optional add-ons are priced à la carte, so the cost depends on which capabilities a user needs.

Alternatives

Email Scheduling Software and Sales Follow-Up Software offer broader category comparisons for readers still deciding what kind of tool fits.

Pick Boomerang if you want a free Gmail or Google Workspace option with 10 message credits per month, or its paid Personal plan at $4.98 a month billed annually. Pick Instantly if a paid tool with a Growth plan at $47 a month billed monthly and a database of 450M+ B2B leads better fits your needs. Saleshandy is another paid option, with its Starter plan at $34 a month billed annually at $408/year, or $41/mo if paid monthly.

Hunter, Mailmeteor, Mixmax, Right Inbox and Scurry are also alternatives.

Verdict

FollowUpThen is a sensible choice for email-first users who want to schedule private or shared reminders without connecting an inbox. Its narrow, low-friction workflow is the main reason to choose it; the free-plan cap and retained searchable email metadata are the main reasons to look elsewhere.

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