# KeepKnown: Email Screener — Block unknown senders & spam

> Block unknown senders & spam (iPhone/iPad app by Aymane Sennoussi.)

- Source: https://appshunter.io/ios/app/keepknown-email-screener/id6802001876 (this page in markdown: same URL + `.md`)
- Developer: [Aymane Sennoussi](https://appshunter.io/developer/1528168820)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 26 MB
- Languages: American English
- Released: 2026-09-05
- Data updated: 2026-10-29

## What is KeepKnown?

KeepKnown is an email screener for Gmail, Google Workspace, Outlook and Microsoft 365. Mail from people you know lands in your inbox. Cold emails, spam that slips past your provider's filter and messages from unknown senders wait for your review until you decide.

HOW THE EMAIL SCREENER WORKS

KeepKnown checks each new message against the people you already know: your synced contacts, the senders you approve and your VIP domains. Known senders go straight to your inbox. Mail from unknown senders moves out of your inbox to a separate review label or folder. Nothing is deleted, and every screened email stays one tap away.

BLOCK COLD EMAILS AND SALES OUTREACH

Sales pitches, cold outreach sequences, unknown vendors and newsletters you never signed up for stop interrupting your day. Block a sender or a whole domain when you never want to hear from them again.

LET THE RIGHT PEOPLE IN

Approve a sender or domain once and their future mail comes straight through. Add your company, clients and partners as VIP domains so new people from those organizations are never screened.

REVIEW SCREENED EMAIL IN SECONDS

Open the review queue to restore a message to your inbox, trust its sender, move it to Reading Later or keep it screened. Activity shows which rule matched, why it matched and what happened next.

EMAIL FILTER RULES WITH A SAFE PREVIEW

Start from a template or build your own email filter from conditions such as trusted contacts, approved domains, sender groups, message headers, prior conversations and schedules. Preview a rule against your recent mail before it runs, and approve it only when the matches look right.

UNSUBSCRIBE FROM UNWANTED NEWSLETTERS

Scan recent mail for subscriptions and send unsubscribe requests for the ones you no longer want. Each request asks for your confirmation first.

PRIVACY BY DESIGN

KeepKnown does not read email bodies for core filtering. Your mail provider authorization stays on KeepKnown's secured server and is never stored on your phone. Export or permanently delete your account and data at any time.

GET STARTED

Create an account with email, or continue with Apple, Google or Microsoft, then connect your inbox. Start your 7-day free trial with no card needed. Founder and Executive Pro subscriptions are available in the app.

Terms of Use: https://keepknown.com/terms-services/
Privacy Policy: https://keepknown.com/privacy-policy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| KeepKnown Founder | $29.99 | per month |
| KeepKnown Executive Pro Annual | $599.99 | per year |
| KeepKnown Founder Annual | $229.99 | per year |
| KeepKnown Executive Pro | $69.99 | per month |


## Is KeepKnown safe?

Not enough ratings yet to assess KeepKnown.

## Is KeepKnown legit?

KeepKnown: Email Screener appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for KeepKnown is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-26

Start a 7-day free trial right in the app, with no card needed.

Also new: unsubscribe from a sender right in the app, swipe to retire a rule, review a rule before it goes live, and clearer activity that shows what happened to each message. Plus fixes for unfinished inbox setup.

### 1.0 — 2026-09-05

No release notes.

## More apps by Aymane Sennoussi

- [Mahkamaty: Court Case Tracker](https://appshunter.io/ios/app/mahkamaty-court-case-tracker/id6757516345)
- [vSolitaire](https://appshunter.io/ios/app/vsolitaire/id6780853739)
- [MultiAnnonces](https://appshunter.io/ios/app/multiannonces/id6801668172)
- [Exporta](https://appshunter.io/ios/app/exporta/id6802109340)

All apps by Aymane Sennoussi: https://appshunter.io/developer/1528168820

## Related topics

[aymane sennoussi](https://appshunter.io/ios/topics/aymane-sennoussi)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*