# CoinEcho vs Stackitaire

The clearest difference is in-app purchases: CoinEcho at none against Stackitaire's 10. Stackitaire's advantage is update cadence (every 3 days vs monthly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Stackitaire sells 10 one-off in-app purchases. CoinEcho asks for nothing beyond the download.

CoinEcho ships an update monthly, Stackitaire every 3 days. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CoinEcho | Stackitaire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Size | 123 MB | 243 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [子涵 马](https://appshunter.io/developer/6807078905) | [MobGame Pte. LTD](https://appshunter.io/developer/1512737732) |

## What reviewers say

### CoinEcho

[App page](https://appshunter.io/ios/app/coinecho-physics-puzzle/id6810488371)

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

**In-app purchases:** none


### Stackitaire

[App page](https://appshunter.io/ios/app/stackitaire-solitaire-sort/id6816046685)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pick One | $1.99 | one-time |
| Pick One Plus | $4.99 | one-time |
| Fail Offer | $5.99 | one-time |
| Deluxe Bundle | $9.99 | one-time |
| Pick One Deluxe | $9.99 | one-time |
| Pick One Premium | $12.99 | one-time |
| Mega Bundle | $19.99 | one-time |
| Luxury Bundle | $39.99 | one-time |
| Ultra Bundle | $79.99 | one-time |
| Extreme Bundle | $99.99 | one-time |


## Frequently asked questions

### Is CoinEcho free?

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

### Is Stackitaire free?

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

### Do CoinEcho or Stackitaire have ads?

Both CoinEcho and Stackitaire show ads.

### Which is updated more often, CoinEcho or Stackitaire?

CoinEcho ships an update monthly, and Stackitaire every 3 days. Most recently, CoinEcho was updated on October 12, 2026 and Stackitaire on October 20, 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.*