# IYKYKnow — Hidden in plain sight.

> Send invisible messages within any text-based communication app. (iPhone/iPad app by Aniruddha Kadam.)

- Source: https://appshunter.io/ios/app/iykyknow/id1526156980 (this page in markdown: same URL + `.md`)
- Developer: [Aniruddha Kadam](https://appshunter.io/developer/1526156982)
- Category: Utilities
- Price: Free with in-app purchases (on sale, was $0.99)
- Rating: 4.20/5 from 48 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: American English
- Released: 2020-08-04
- Data updated: 2026-07-21
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/iykyknow/id1526156980/reviews.md

## What is IYKYKnow?

The message sent using IYKYK keyboard app. Is completely invisible to anyone try to read your private messages. It avoid suspicion, If you are chatting with someone in secret. 

Remember to use this for private use and not to misuse. 

IYKYK app respects privacy. So there is no server communication for encryption and decryption process. Anyone who has access to "IYKYK" app will be able to decrypt the hidden message. 

Compatible with:
- iMessage, SMS, Whatsapp, Telegram.. etc
- Any Emailing app : Gmail, Yahoo MAIL...etc
 In conclusion ...any text messaging app

## Key features

- Invisible message sending
- Works with iMessage, SMS, WhatsApp, Telegram
- Compatible with email apps
- Privacy-focused, no server communication
- Local encryption and decryption

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| App Secret Mode | $2.99 | one-time |
| Icon Pack | $0.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/iykyknow/id1526156980/reviews.md

### 1/5 — It don’t work on any social media nor does it work on iMessages

*2021-06-03*

It don’t work on any social media nor does it work on iMessages

**Developer response:** We are here to help you. 
Please write back to us on our email provided in the app. 
This app was first tested with iMessage. We guarantee you that it will work with iMessage and other social media app. 
We can help you more efficiently. If you email us. 
Thanks,
Bro Code team

### 1/5 — Price

*2021-03-29*

The price is 110$ dollars why is it so much fix it

**Developer response:** Apologies , that was by mistake. 
Price is restored

### 5/5 — It’s good

*2020-12-09*

It’s good

## Frequently asked questions about IYKYKnow

### How does IYKYKnow send invisible messages?

IYKYKnow utilizes a special keyboard that encodes your message into a seemingly normal text string. When the recipient has IYKYKnow, they can decode it back to the original message. This process happens locally on your device without server involvement.

### What messaging apps are compatible with IYKYKnow?

IYKYKnow is compatible with a wide range of messaging applications, including iMessage, SMS, WhatsApp, and Telegram. It also works with any emailing app like Gmail and Yahoo Mail, essentially any app that supports text input.

### Is IYKYKnow free to use?

Yes, IYKYKnow is free to download and use. The app does offer in-app purchases, which may unlock additional features or customization options for users.

### Does IYKYKnow have ads?

No, IYKYKnow does not contain advertisements. The app is designed to be ad-free, providing an uninterrupted user experience.

### What devices does IYKYKnow support?

IYKYKnow is available for iPhone and iPod devices. It is designed to integrate seamlessly with the iOS operating system.

### How often is IYKYKnow updated?

The latest version of IYKYKnow is 1.0.3, last updated on March 2, 2026. While specific update frequency isn't detailed, this indicates ongoing development and maintenance.

### What is the age rating for IYKYKnow?

IYKYKnow has an age rating of 4+. This suggests it is suitable for a broad audience, including younger users, with no mature content concerns.

### How secure is IYKYKnow?

IYKYKnow prioritizes privacy by performing all encryption and decryption processes locally on the user's device. There is no server communication, meaning only someone with access to the IYKYKnow app on the recipient's device can decrypt the hidden message.

## Version history (last 4 releases)

### 1.0.3 — 2026-03-02

- New app branding
- Secret mode for app (In app purchase)
- App Icon change ( In app feature)

### 1.0.2 — 2020-09-03

- Push Notifications
- Bugfix
- Settings shortcut

### 1.0.1 — 2020-08-20

- New UI
- Bug fixes

### 1.0 — 2020-08-04

No release notes.

## Related topics

[iykyknow](https://appshunter.io/ios/topics/iykyknow)

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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 2026-07-21.*