Shortwave vs EchoWithin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shortwave
This AI-powered email client streamlines your inbox with intelligent organization, writing assistance, and team collaboration tools. It helps you manage emails, schedule meetings, and turn messages into actionable tasks, all while learning your unique style.
- AI-powered email writing and drafting
- Intelligent inbox organization and clutter removal
- Real-time team collaboration and email assignment
- AI-assisted meeting scheduling
- Email to-do list conversion
- Customizable AI prompts and automations
- Management of multiple Gmail accounts
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AI-NATIVE EMAIL FOR BUSINESS "The AI revolution is coming for your email" – Business Insider "This app is like ChatGPT for your email, and it changed my life" – Digital Trends "The Google Inbox successor I’ve been waiting for" – The Verge YOUR AI EMAIL ASSISTANT Supercharge your productivity with advanced AI & real-time team collaboration. Write emails, improve drafts, schedule meetings, analyze threads, translate text, and more using Shortwave’s powerful AI Assistant. ORGANIZE YOUR INBOX WITH AI With 1-tap, Shortwave’s AI Assistant can identify urgent emails, group threads into todos, and sweep away the remaining clutter so you can get to inbox zero with zero effort. SHARE & DISCUSS EMAILS WITH YOUR TEAM Get the right people involved and bring everyone up to speed fast with private team comments and live thread sharing. Assign emails to teammates to delegate next steps. WRITE EMAILS WITH AI Write personalized emails with AI in seconds, or use instant AI replies to get full drafts in just one tap. Shortwave learns your unique writing style and even facts about you from the emails you send. IMPROVE AND PROOFREAD DRAFTS Complete your drafts, adjust length and tone, translate into other languages, and more with a built-in AI editor. SEARCH AND FIND ANSWERS Use AI-powered search to find emails fast, or to analyze your entire team's emails & attachments for the answers you need SCHEDULE MEETINGS WITH AI Spend less time juggling calendars with AI-powered scheduling features. Create events, send AI-generated scheduling emails, accept calendar events with one click, and more. GET ORGANIZED WITH SPLITS AND BUNDLES Focus your time & attention by dividing your inbox into tabs for important emails, specific senders, labels & even custom queries. Use bundles for fast triage of promotions, newsletters, updates, and other automated emails. TURN EMAILS INTO TODOS Transform your overflowing inbox into an organized list of action items. Group, rename, prioritize, and add notes, right in your inbox. SET DELIVERY SCHEDULES Avoid interruptions by deferring when emails arrive in your inbox, so you only receive emails when you want them. VIEW READ STATUSES See when people read your emails to get the context you need to prioritize your time and write effective follow-ups. Close more deals and collaborate better with your team. SCREEN UNWANTED SENDERS Guard your inbox from noise with one-click block and unsubscribe. FINE-TUNE PUSH NOTIFICATIONS Granular push controls let you minimize distractions with personalized alerts for specific senders and types of emails. CUSTOMIZE EVERYTHING Customize AI prompts and automate your team’s work with AI Snippets & AI Automations. Adjust tons of details in settings, and make Shortwave yours with custom colors and beautiful light & dark modes. MANAGE MULTIPLE ACCOUNTS Organize all of your Gmail accounts from one app and seamlessly switch between them in a single swipe. SYNCS WITH GMAIL Migrate seamlessly to Shortwave from your existing Gmail or Google Workspace account with all of your labels, filters, and other settings imported. If you have questions or want to learn more about Shortwave and best practices, you can find resources here: https://www.shortwave.com/docs/
EchoWithin
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EchoWithin is a calm place for your words. It helps you gently keep track of moments you may want to revisit — without pressure, without judgment. Conversations pass quickly. Details fade. EchoWithin quietly listens in the background and lets you return to recent moments when you need clarity. This app is designed for personal memory and reflection. It does not monitor others, make claims, or provide legal conclusions. All recordings and notes remain under your control. Use EchoWithin to: • Revisit recent moments when details are forgotten • Keep short-term audio memory for personal reference • Slow down reactions and reflect later • Build a calmer relationship with your own words Beautiful moments deserve to be kept. This app uses Apple’s Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Shortwave | EchoWithin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (754 ratings) — better | — |
| Positive reviews | 65.4% of reviews | — |
| Number of ratings | 754 — better | — |
| Update frequency | Every 4 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 26 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Shortwave Communications, Inc. | Dao-Heng Dong |
Bugs and requests
Shortwave
Reported bugs
3 issues- Unreliable email bundling and threading
- Inconsistent performance and stability issues
- Bugs with email forwarding and attachment handling
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Shortwave
No in-app purchases
EchoWithin
- EchoWithin Pro$4.991 Month
- EchoWithin Pro$29.991 Year
- EchoWithin Pro$59.99









