# Ottawa Athan vs IYKYKnow

The clearest difference is in-app purchases: Ottawa Athan at none against IYKYKnow's 2. Ottawa Athan also leads on iOS requirement (10.0 vs 13.0). IYKYKnow's advantage is update cadence (fortnightly vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. IYKYKnow sells 2 one-off in-app purchases. Ottawa Athan asks for nothing beyond the download.

Ottawa Athan ships an update every 31 months, IYKYKnow fortnightly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Ottawa Athan | IYKYKnow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (48 ratings)](https://appshunter.io/ios/app/iykyknow/id1526156980/reviews)** |
| Number of ratings | — | **48** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 18 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Abdullah](https://appshunter.io/developer/873693566) | [Aniruddha Kadam](https://appshunter.io/developer/1526156982) |

## What reviewers say

### Ottawa Athan

[App page](https://appshunter.io/ios/app/ottawa-athan/id892071684)

**Features:** macOS Compatibility

**In-app purchases:** none


### IYKYKnow

[App page](https://appshunter.io/ios/app/iykyknow/id1526156980)

This utility app allows you to send invisible messages within your existing messaging applications. It helps maintain privacy and avoid suspicion when communicating secretly. The app ensures no server communication for encryption, keeping your data local.

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

**Features:** macOS Compatibility

**In-app purchases (2)**

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


## Frequently asked questions

### Is Ottawa Athan free?

Ottawa Athan is free to download, with no in-app purchases.

### Is IYKYKnow free?

IYKYKnow is free to download, with in-app purchases available.

### Do Ottawa Athan or IYKYKnow have ads?

Neither Ottawa Athan nor IYKYKnow shows ads.

### Which is updated more often, Ottawa Athan or IYKYKnow?

Ottawa Athan ships an update every 31 months, and IYKYKnow fortnightly. Most recently, Ottawa Athan was updated on October 10, 2026 and IYKYKnow on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*