# Shortwave vs EchoWithin

The clearest difference is in-app purchases: Shortwave at none against EchoWithin's 3. Shortwave also leads on iOS requirement (15.0 vs 18.0). EchoWithin's advantage is update cadence (daily vs every 4 weeks). On price, ads and device support there is nothing between them.

Both are free to download. EchoWithin sells 3 in-app purchases, starting at $4.99 per month. Shortwave asks for nothing beyond the download.

Shortwave ships an update every 4 weeks, EchoWithin daily. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Shortwave | EchoWithin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (754 ratings)](https://appshunter.io/ios/app/shortwave-ai-email/id1559784681/reviews)** | — |
| Number of ratings | **754** | — |
| Positive reviews | 65.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Daily** |
| Monetization | Free | — |
| Size | 26 MB | 11 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shortwave Communications, Inc.](https://appshunter.io/developer/1502603969) | [Dao-Heng Dong](https://appshunter.io/developer/1871132405) |

## What reviewers say

### Shortwave

[App page](https://appshunter.io/ios/app/shortwave-ai-email/id1559784681)

This AI-powered email client streamlines your inbox with intelligent assistance for writing, organizing, and scheduling. It offers real-time team collaboration, advanced search, and customizable workflows to boost productivity.

**Highlights:** AI-powered email writing and drafting, Intelligent inbox organization and clutter removal, Real-time team collaboration and email sharing, AI-driven meeting scheduling, Advanced AI-powered search and analysis, Customizable workflows and AI snippets

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent email management
- 👍 Clean and intuitive interface
- 🚀 Efficient email processing
- 💡 Innovative AI features
- 👍 Helpful email bundling and scheduling

**What reviewers complain about**

- 🐛 Inconsistent mobile app experience
- 🔒 Privacy concerns around data collection
- 🔍 Limited search and filtering options
- 💻 Lack of support for non-Gmail accounts
- 🔧 Missing key features like delete and landscape mode

**Reported bugs**

- Unreliable email bundling and threading
- Inconsistent performance and stability issues
- Bugs with email forwarding and attachment handling

**Requested features**

- Add support for more email providers
- Improve iPad and tablet optimization
- Enhance customization options for labels and actions
- Integrate with more productivity apps and services
- Provide better transparency around data usage and privacy


### EchoWithin

[App page](https://appshunter.io/ios/app/echowithin/id6758141270)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EchoWithin Pro | $4.99 | per month |
| EchoWithin Pro | $29.99 | per year |
| EchoWithin Pro | $59.99 | one-time |


## Frequently asked questions

### Is Shortwave free?

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

### Is EchoWithin free?

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

### Do Shortwave or EchoWithin have ads?

Neither Shortwave nor EchoWithin shows ads.

### Which is updated more often, Shortwave or EchoWithin?

Shortwave ships an update every 4 weeks, and EchoWithin daily. Most recently, Shortwave was updated on November 3, 2026 and EchoWithin on October 28, 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.*