# Echo vs Stacks

The clearest difference is in-app purchases: Stacks at none against Echo's 1. Stacks also leads on iOS requirement (16.4 vs 18.0). Echo's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Echo sells 1 in-app purchase, starting at $19.99 per month. Stacks asks for nothing beyond the download.

Echo ships an update monthly, Stacks every 4 months. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Echo | Stacks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stacks-save-and-share-anything/id6757166261/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | — | Free |
| Size | 73 MB | 99 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gomeo Inc.](https://appshunter.io/developer/1708590646) | [Derainged LLC](https://appshunter.io/developer/1219716217) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-thinks-like-you/id6670276532)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | per month |


### Stacks

[App page](https://appshunter.io/ios/app/stacks-save-and-share-anything/id6757166261)

Organize and share moments, ideas, and lists with others. Create private or shared collections for anything from restaurants to trip plans, and collaborate with friends and family by adding photos, links, and places.

**Highlights:** Create private or shared stacks, Add photos, videos, text, links, and places, Organize lists, plans, recommendations, and memories, Collaborate with friends and family, React, comment, and keep ideas moving, Quickly save content into the right stack

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

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

### Is Stacks free?

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

### Do Echo or Stacks have ads?

Neither Echo nor Stacks shows ads.

### Which is updated more often, Echo or Stacks?

Echo ships an update monthly, and Stacks every 4 months. Most recently, Echo was updated on October 27, 2026 and Stacks on October 16, 2026.

---

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