# Ping vs eyeknow

The clearest difference is update cadence: Ping at monthly against eyeknow's every 2 months. eyeknow's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ping ships an update monthly, eyeknow every 2 months. The most recent releases landed on September 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Ping | eyeknow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 21 MB | 19 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Omoroki](https://appshunter.io/developer/1059157545) | [TCOM TECHNOLOGY AND COMMUNICATION JOINT STOCK COMPANY](https://appshunter.io/developer/1245632014) |

## What reviewers say

### Ping

[App page](https://appshunter.io/ios/app/ping-a-feeling-sonar/id1059157546)

This social networking app allows users to express themselves in short, 15-letter messages. Connect with others who share the exact same thoughts or interests, and send messages once a connection is established. It focuses on free expression without traditional social media metrics like likes or followers.

**Highlights:** 15-letter expression limit, Connect through shared expressions, Message after matching 4 times, No followers, likes, or read receipts, Anonymous matching, Focus on free expression

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### eyeknow

[App page](https://appshunter.io/ios/app/eyeknow/id1661959953)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ping free?

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

### Is eyeknow free?

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

### Do Ping or eyeknow have ads?

Neither Ping nor eyeknow shows ads.

### Which is updated more often, Ping or eyeknow?

Ping ships an update monthly, and eyeknow every 2 months. Most recently, Ping was updated on September 7, 2026 and eyeknow on September 23, 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.*