Ext Ops Panel
Open the app

AI Email Writer for Gmail - Letty

Chrome extension by Softcore Labs · Productivity · Workflow

  • Featured
  • Established publisher

A Chrome extension in Productivity · Workflow with 516 users, barely installed.

Specific sites only: 1 match pattern.

What the developer says, and 4 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
516
Rating
5.0 (2 ratings)
Users, last 16 days
+31
Rating, last 30 days
Not watched long enough to say
Version
1.0.1
Updated in the store
2025-03-05
Published
2023-11-13
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+31 since 01.09
485-516 · 10 readings
  1. 2026-09-01485
  2. 2026-09-02489
  3. 2026-09-04495
  4. 2026-09-06496
  5. 2026-09-08508
  6. 2026-09-09510
  7. 2026-09-10516
  8. 2026-09-13513
  9. 2026-09-15516
  10. 2026-09-16516
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-06reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-09reviews2rating5.00
  7. 2026-09-10reviews2rating5.00
  8. 2026-09-13reviews2rating5.00
  9. 2026-09-15reviews2rating5.00
  10. 2026-09-16reviews2rating5.00
Users
+31 since 01.09
485-516 · 10 readings
  1. 2026-09-01485
  2. 2026-09-02489
  3. 2026-09-04495
  4. 2026-09-06496
  5. 2026-09-08508
  6. 2026-09-09510
  7. 2026-09-10516
  8. 2026-09-13513
  9. 2026-09-15516
  10. 2026-09-16516
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-06reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-09reviews2rating5.00
  7. 2026-09-10reviews2rating5.00
  8. 2026-09-13reviews2rating5.00
  9. 2026-09-15reviews2rating5.00
  10. 2026-09-16reviews2rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://api.useletty.com/*
  • See the address and title of every tab you have open tabs
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Softcore Labs publishes 6 listings we track, 33k users between them. Listed website: useletty.com.

  1. Gmail Mass Unsubscribe & Delete Emails - InboxPurge Softcore Labs · Productivity · Workflow · published 2023-06-08 30k users ★ 4.7
  2. View Quote Tweets On Twitter - QuickQuotes Softcore Labs · Lifestyle · Social · published 2024-03-17 1k users ★ 4.8
  3. Influencer Analytics Tool: Profile Analyzer & Competitor Research Softcore Labs · Lifestyle · Social · published 2026-04-04 687 users ★ 5.0
Show 2 more from this publisher
  1. Should I See It? - Netflix Ratings & Reviews Softcore Labs · Lifestyle · Fun · published 2023-02-25 486 users ★ 3.0
  2. Sidebar & App Launcher for ChatGPT, YouTube, Reddit & More - TabBuddy Softcore Labs · Make Chrome Yours · Functionality · published 2024-07-01 454 users ★ 3.6

Like this one

Listings the catalog judges closest in what they say they do.

  1. Replyly AI Assistant Describes nearly the same job, smaller audience 4 users
  2. LingoBot Describes nearly the same job, smaller audience 5 users ★ 5.0
  3. MailSome - AI Email Writer for Gmail | Reply & Compose Fast Describes nearly the same job, smaller audience 23 users
  4. Mailyr: Write Emails with GPT-5, Claude, and Gemini Describes nearly the same job, smaller audience 731 users ★ 4.5
  5. Saymail - AI Email Writer for Gmail Describes nearly the same job, smaller audience 5 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.