# Shadow Ninja vs Echo Dig

The clearest difference is in-app purchases: Shadow Ninja at none against Echo Dig's 1. Shadow Ninja also leads on update cadence (every 8 days vs every 3 weeks). Echo Dig's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Echo Dig sells 1 one-off in-app purchase. Shadow Ninja asks for nothing beyond the download.

Shadow Ninja ships an update every 8 days, Echo Dig every 3 weeks. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Shadow Ninja | Echo Dig |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Size | 249 MB | 9 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Studio Solum](https://appshunter.io/developer/1807647357) | [Amit Abhishek](https://appshunter.io/developer/1804334519) |

## What reviewers say

### Shadow Ninja

[App page](https://appshunter.io/ios/app/shadow-ninja-ink-graze/id6785406748)

**Features:** Vision Pro support

**In-app purchases:** none


### Echo Dig

[App page](https://appshunter.io/ios/app/echo-dig/id6790164889)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Deep | $4.99 | one-time |


## Frequently asked questions

### Is Shadow Ninja free?

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

### Is Echo Dig free?

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

### Do Shadow Ninja or Echo Dig have ads?

Shadow Ninja shows ads; Echo Dig does not.

### Which is updated more often, Shadow Ninja or Echo Dig?

Shadow Ninja ships an update every 8 days, and Echo Dig every 3 weeks. Most recently, Shadow Ninja was updated on November 10, 2026 and Echo Dig on November 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.*