# KeepKnown — Advanced inbox filters

> Advanced inbox filters (iPhone/iPad app by Aymane Sennoussi.)

- Source: https://appshunter.io/ios/app/keepknown/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 · 21 MB
- Languages: American English
- Released: 2026-09-05
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/keepknown/id6802001876/reviews.md

## What is KeepKnown?

KeepKnown is the native control center for advanced inbox filtering across Gmail, Google Workspace, Outlook, and Microsoft 365.

BUILD RULES YOUR INBOX CANNOT
Combine trusted contacts, approved domains, sender groups, message headers, prior conversations, and nested logic. Start from proven templates or build a filter condition by condition.

PREVIEW BEFORE ACTIVATION
Test a rule against recent mail before turning it on. Keep new filters paused, observe them in Shadow mode, send uncertain matches to Review Only, and activate reversible actions when you are ready.

REVIEW WITH CONTEXT
See which filter matched, why it qualified, and what happened next. Restore a message, trust a sender or domain, move mail to Reading Later, retry an action, or pause the matching filter.

CONTROL EVERY CONNECTED INBOX
Monitor protection health, refresh provider listeners, sync trusted contacts, manage sender groups, choose digest timing, and receive privacy-safe notifications.

PRIVACY BY DESIGN
KeepKnown does not read email bodies for core filtering. 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.

An existing KeepKnown account is required. Optional auto-renewing Founder and Executive Pro subscriptions are available through the App Store.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## 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 |



## Version history (last 1 release)

### 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)

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

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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 2026-09-10.*