# AI Email Inbox vs 1Stack Stellar

The clearest difference is in-app purchases: 1Stack Stellar at none against AI Email Inbox's 4. 1Stack Stellar also leads on iOS requirement (13.0 vs 15.0). AI Email Inbox's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. AI Email Inbox sells 4 in-app purchases, starting at $0.99 per month. 1Stack Stellar asks for nothing beyond the download.

AI Email Inbox ships an update every 3 weeks, 1Stack Stellar every 2 months. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | AI Email Inbox | 1Stack Stellar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (41 ratings)](https://appshunter.io/ios/app/ai-email-inbox-mailtime-pro/id1025252985/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 116 MB | 55 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [MailTime](https://appshunter.io/developer/914281818) | [CoreTech s.r.l.](https://appshunter.io/developer/1146811110) |

## What reviewers say

### AI Email Inbox

[App page](https://appshunter.io/ios/app/ai-email-inbox-mailtime-pro/id1025252985)

This app transforms your email inbox into a messaging-style conversation flow, making communication easier and more organized. It features an AI assistant for generating replies, proofreading, and refining messages, alongside smart inbox prioritization and group chat-like management.

**Highlights:** Messaging-style email conversations, AI-generated email replies, Email proofreading and refinement, Smart inbox prioritization, Group chat-like email management, Multiple email account support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Monthly Subscription | $0.99 | per month |
| AI Yearly Subscription | $4.99 | per year |
| 20 MailTime AI Credits | $0.99 | one-time |
| 100 MailTime AI Credits | $0.99 | one-time |

**What reviewers like**

- 💬 Conversation-style email interface resembles messaging apps
- 👍 User-friendly and intuitive design
- 🔀 Support for multiple email accounts in one app
- ⚡ Efficient email management and organization
- 🎨 Modern and clean visual presentation

**What reviewers complain about**

- 🐛 App crashes and freezes frequently
- ⚠️ Poor customer support and slow responses
- 🔄 Inconsistent email syncing and delays
- 🚫 Limited email provider support (no IMAP/POP)
- 📵 Push notifications not working reliably

**Reported bugs**

- Cannot navigate back from message view without closing app
- Server busy errors preventing app usage
- App incompatible with iOS 14+ despite iOS 13 support claim
- Emails deleted from trash still appear in account
- Notification doesn't navigate to correct email account

**Requested features**

- Dark mode support
- Multi-select for bulk email deletion
- Junk/spam folder
- VIP or priority inbox filtering
- Email aliases support


### 1Stack Stellar

[App page](https://appshunter.io/ios/app/1stack-stellar/id6760779216)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Email Inbox free?

AI Email Inbox is free to download, with in-app purchases available.

### Is 1Stack Stellar free?

1Stack Stellar is free to download, with no in-app purchases.

### Do AI Email Inbox or 1Stack Stellar have ads?

Neither AI Email Inbox nor 1Stack Stellar shows ads.

### Which is updated more often, AI Email Inbox or 1Stack Stellar?

AI Email Inbox ships an update every 3 weeks, and 1Stack Stellar every 2 months. Most recently, AI Email Inbox was updated on October 8, 2026 and 1Stack Stellar on October 10, 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.*