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AI Email Writer for Gmail - Letty

Chrome extension by Softcore Labs · Productivity · Workflow

  • Featured
  • Established publisher

A Chrome extension in Productivity · Workflow with 489 users, barely installed. Audience over the last 30 days: -4.

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
489
Rating
5.0 (2 ratings)
Users, last 30 days
-4
Rating, last 30 days
Steady over 30 days
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
-4 since 12.10
481-511 · 19 readings
  1. 2026-10-13481
  2. 2026-10-16485
  3. 2026-10-18488
  4. 2026-10-19489
  5. 2026-10-21487
  6. 2026-10-22489
  7. 2026-10-23486
  8. 2026-10-24490
  9. 2026-10-25486
  10. 2026-10-27505
  11. 2026-10-29509
  12. 2026-11-01511
  13. 2026-11-03505
  14. 2026-11-06500
  15. 2026-11-07500
  16. 2026-11-08499
  17. 2026-11-09498
  18. 2026-11-10489
  19. 2026-11-11489
Rating
unchanged since 12.10
reviewsrating 5.00 · 19 readings
  1. 2026-10-13reviews2rating5.00
  2. 2026-10-16reviews2rating5.00
  3. 2026-10-18reviews2rating5.00
  4. 2026-10-19reviews2rating5.00
  5. 2026-10-21reviews2rating5.00
  6. 2026-10-22reviews2rating5.00
  7. 2026-10-23reviews2rating5.00
  8. 2026-10-24reviews2rating5.00
  9. 2026-10-25reviews2rating5.00
  10. 2026-10-27reviews2rating5.00
  11. 2026-10-29reviews2rating5.00
  12. 2026-11-01reviews2rating5.00
  13. 2026-11-03reviews2rating5.00
  14. 2026-11-06reviews2rating5.00
  15. 2026-11-07reviews2rating5.00
  16. 2026-11-08reviews2rating5.00
  17. 2026-11-09reviews2rating5.00
  18. 2026-11-10reviews2rating5.00
  19. 2026-11-11reviews2rating5.00
Users
+4 since 01.09
481-530 · 39 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. 2026-09-16530
  11. 2026-09-20516
  12. 2026-09-21517
  13. 2026-09-25492
  14. 2026-09-26496
  15. 2026-09-28495
  16. 2026-10-05496
  17. 2026-10-08497
  18. 2026-10-09495
  19. 2026-10-10501
  20. 2026-10-11493
  21. 2026-10-13481
  22. 2026-10-16485
  23. 2026-10-18488
  24. 2026-10-19489
  25. 2026-10-21487
  26. 2026-10-22489
  27. 2026-10-23486
  28. 2026-10-24490
  29. 2026-10-25486
  30. 2026-10-27505
  31. 2026-10-29509
  32. 2026-11-01511
  33. 2026-11-03505
  34. 2026-11-06500
  35. 2026-11-07500
  36. 2026-11-08499
  37. 2026-11-09498
  38. 2026-11-10489
  39. 2026-11-11489
Rating
unchanged since 01.09
reviewsrating 5.00 · 39 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
  11. 2026-09-20reviews2rating5.00
  12. 2026-09-21reviews2rating5.00
  13. 2026-09-25reviews2rating5.00
  14. 2026-09-26reviews2rating5.00
  15. 2026-09-28reviews2rating5.00
  16. 2026-10-05reviews2rating5.00
  17. 2026-10-08reviews2rating5.00
  18. 2026-10-09reviews2rating5.00
  19. 2026-10-10reviews2rating5.00
  20. 2026-10-11reviews2rating5.00
  21. 2026-10-13reviews2rating5.00
  22. 2026-10-16reviews2rating5.00
  23. 2026-10-18reviews2rating5.00
  24. 2026-10-19reviews2rating5.00
  25. 2026-10-21reviews2rating5.00
  26. 2026-10-22reviews2rating5.00
  27. 2026-10-23reviews2rating5.00
  28. 2026-10-24reviews2rating5.00
  29. 2026-10-25reviews2rating5.00
  30. 2026-10-27reviews2rating5.00
  31. 2026-10-29reviews2rating5.00
  32. 2026-11-01reviews2rating5.00
  33. 2026-11-03reviews2rating5.00
  34. 2026-11-06reviews2rating5.00
  35. 2026-11-07reviews2rating5.00
  36. 2026-11-08reviews2rating5.00
  37. 2026-11-09reviews2rating5.00
  38. 2026-11-10reviews2rating5.00
  39. 2026-11-11reviews2rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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 ★ 4.8
  2. View Quote Tweets On Twitter - QuickQuotes Softcore Labs · Lifestyle · Social · published 2024-03-17 1k users ★ 4.9
  3. Influencer Analytics Tool: Profile Analyzer & Competitor Research Softcore Labs · Lifestyle · Social · published 2026-04-04 872 users ★ 5.0
Show 2 more from this publisher
  1. Sidebar & App Launcher for ChatGPT, YouTube, Reddit & More - TabBuddy Softcore Labs · Make Chrome Yours · Functionality · published 2024-07-01 522 users ★ 3.5
  2. Should I See It? - Netflix Ratings & Reviews Softcore Labs · Lifestyle · Fun · published 2023-02-25 473 users ★ 3.0

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 4 users ★ 5.0
  3. MailSome - AI Email Writer for Gmail | Reply & Compose Fast Describes nearly the same job, smaller audience 19 users
  4. Mailyr: Write Emails with GPT-5, Claude, and Gemini Describes nearly the same job, smaller audience 741 users ★ 4.5
  5. Saymail - AI Email Writer for Gmail Describes nearly the same job, smaller audience 8 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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/mfgidmcijamapekppghogiobelkgceml/badge.svg)](https://extops.dev/extensions/mfgidmcijamapekppghogiobelkgceml)

HTML

<a href="https://extops.dev/extensions/mfgidmcijamapekppghogiobelkgceml"><img src="https://extops.dev/extensions/mfgidmcijamapekppghogiobelkgceml/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-10. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built