KOS emails
KOS sends about 3 emails a week through Klaviyo, most often on Friday around 10 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 3
- Busiest send time
- Fridays at 10am ET
- Last sent
- 19 days ago · Oct 13
- Tracked since
- Jun 2026
- Emails collected
- 32
Recent emails
Oct 13, 2026 8:45 PM
You’re Officially On the List
Oct 13, 2026 1:11 PM
Foundational ADK: Meet your new daily essential
Oct 9, 2026 3:17 PM
Why stop at one protein?
Oct 5, 2026 11:10 AM
Your $9.47 Store Credit Expires Tonight
Oct 4, 2026 11:26 AM
Your $9.47 Store Credit Expires Tomorrow
Oct 3, 2026 1:32 PM
Did you forget about your $9.47?
Recent subject lines
All subject linesSubject lines average 32 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 13, 2026 8:45 PM | You’re Officially On the List | Hi , Thanks for signing up for early access. We’re excited to have you here. We’ll send… | |
| Oct 13, 2026 1:11 PM | Foundational ADK: Meet your new daily essential | Your daily A, D3 + K2, thoughtfully formulated in one chew. | |
| Oct 9, 2026 3:17 PM | Why stop at one protein? | Five plant proteins + a breakfast worth waking up for. | |
| Oct 5, 2026 11:10 AM | Your $9.47 Store Credit Expires Tonight | It's already on your account. Just use it before midnight. | |
| Oct 4, 2026 11:26 AM | Your $9.47 Store Credit Expires Tomorrow | Use it on anything in the store before it's gone. | |
| Oct 3, 2026 1:32 PM | Did you forget about your $9.47? | Still there, still yours | |
| Oct 2, 2026 10:44 AM | You've got $9.47 credit in your account | Applies automatically at checkout. | |
| Sep 28, 2026 9:07 AM | How can one ingredient do so much | Pure organic coconut milk powder |
Archive
View full archiveOctober 2026 7 emails
View allYou've got $9.47 credit in your account
Oct 2, 2026 10:44 AM
September 2026 13 emails
View allHow can one ingredient do so much
Sep 28, 2026 9:07 AM
We built this for your gut's diversity
Sep 23, 2026 11:02 AM
Sep 18, 2026 5:52 PM
Sep 17, 2026 5:51 PM
Sep 17, 2026 10:03 AM
Got Questions? We've Got Answers 🙋
Sep 15, 2026 5:50 PM
Sep 14, 2026 5:48 PM
Sep 14, 2026 12:48 PM
Be the first to try Microbiome Fiber
Sep 11, 2026 4:22 PM
Sep 9, 2026 9:32 AM
Sep 8, 2026 10:03 AM
You've got $11.47 in your account
Sep 7, 2026 12:51 PM
When KOS sends
22% of its emails arrive in the 10 AM hour, with a second, smaller wave around 1 PM. Fridays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tue | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Fri | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sun | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 9a | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
| 10a | 1 | 1 | 0 | 1 | 2 | 0 | 2 |
| 11a | 1 | 0 | 2 | 0 | 1 | 0 | 1 |
| 12p | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1p | 0 | 2 | 0 | 0 | 1 | 2 | 0 |
| 2p | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3p | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 4p | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 5p | 1 | 1 | 0 | 1 | 1 | 0 | 0 |
| 6p | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 7p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8p | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 9p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FewerMore(busiest cell: 2 emails)
Based on 32 emails received from Jun 30 to Oct 13, 2026. Times in US Eastern. How we collect · When all brands send
How often KOS sends
Complete months have run between 4 and 13 emails.
- Busiest month
- Sep 2026, 13
- Quietest month
- Aug 2026, 4
- Busiest day
- Friday, 8
- Quietest day
- Thursday, 2
About KOS
- ESP
- Klaviyo
- Tracked since
- Jun 2026
- Emails collected
- 32
- Emails a week
- about 3
- Last sent
- Oct 13, 2026
- Sends from
- hello@
kos.com - Subject length
- 32 characters avg
Counts include automated emails such as a welcome series.
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 1791 Gunleather1791gunleather.com · Top 1 million sites | Klaviyo | Top 1 million sites | about 3 | Friday | Oct 30, 2026 | Klaviyo · about 3 a week · busiest Friday · last sent Oct 30, 2026 | |
 1-TDC worksSOwellworkssowell.com | Klaviyo | about 3 | Friday | Nov 1, 2026 | Klaviyo · about 3 a week · busiest Friday · last sent Nov 1, 2026 | ||
 11th + Sixth11thandsixth.com | Klaviyo | about 3 | Thursday | Oct 22, 2026 | Klaviyo · about 3 a week · busiest Thursday · last sent Oct 22, 2026 |
