# Invisible Ping Pong vs 100 Grid Challenge

The clearest difference is ads: Invisible Ping Pong at none against 100 Grid Challenge's shown. Invisible Ping Pong also leads on update cadence (every 2 days vs every 3 weeks) and monetization model (free vs ad-supported). 100 Grid Challenge's advantage is device support (3 vs 1) and iOS requirement (15.3 vs 17.0). On price and in-app purchases there is nothing between them.

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

Invisible Ping Pong ships an update every 2 days, 100 Grid Challenge every 3 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | Invisible Ping Pong | 100 Grid Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/invisible-ping-pong/id6502412114/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 14 MB | 12 MB |
| Requires iOS | 17.0 | **15.3** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matteo Perotta](https://appshunter.io/developer/1822731774) | [matteo poggesi](https://appshunter.io/developer/1764311112) |

## What reviewers say

### Invisible Ping Pong

[App page](https://appshunter.io/ios/app/invisible-ping-pong/id6502412114)

Experience table tennis without physical equipment. Use your phone as a racket and mimic swing gestures to play against friends or a bot. Enjoy a unique 1v1 multiplayer experience anywhere.

**Highlights:** Play table tennis virtually, Use phone as racket, Gesture-based swing detection, 1v1 multiplayer against friends, Train against AI bot, No physical equipment needed

**Features:** macOS Compatibility

**In-app purchases:** none


### 100 Grid Challenge

[App page](https://appshunter.io/ios/app/100-grid-challenge/id6670337983)

This is a strategic block puzzle game where players navigate a 10x10 grid to reach a score of 100. It combines elements of number matching and grid movement, offering a unique brain-training experience for all ages.

**Highlights:** 10x10 grid navigation, Reach a score of 100, Strategic move planning, Global leaderboards, Brain-training puzzles, Intuitive design, Endless replayability

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invisible Ping Pong free?

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

### Is 100 Grid Challenge free?

100 Grid Challenge is free to download, with no in-app purchases.

### Do Invisible Ping Pong or 100 Grid Challenge have ads?

100 Grid Challenge shows ads; Invisible Ping Pong does not.

### Which is updated more often, Invisible Ping Pong or 100 Grid Challenge?

Invisible Ping Pong ships an update every 2 days, and 100 Grid Challenge every 3 weeks. Most recently, Invisible Ping Pong was updated on November 4, 2026 and 100 Grid Challenge on November 4, 2026.

---

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