# MULTI.Day vs Inbox Zero

The clearest difference is in-app purchases: MULTI.Day at none against Inbox Zero's 2. MULTI.Day also leads on iOS requirement (9.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Inbox Zero sells 2 in-app purchases, starting at $19.99 per month. MULTI.Day asks for nothing beyond the download.

## The numbers

| Metric | MULTI.Day | Inbox Zero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Subscription |
| Size | 33 MB | 35 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UNOX](https://appshunter.io/developer/971769018) | [Inbox Zero Inc.](https://appshunter.io/developer/1880462164) |

## What reviewers say

### MULTI.Day

[App page](https://appshunter.io/ios/app/multiday/id1527572741)

**Features:** macOS Compatibility

**In-app purchases:** none


### Inbox Zero

[App page](https://appshunter.io/ios/app/inbox-zero-ai-email-assistant/id6759736561)

This AI-powered assistant helps you manage your email inbox efficiently. It prioritizes important messages, drafts replies in your style, and helps you unsubscribe from unwanted newsletters. Automate email handling with custom rules and stay in control of your communications.

**Highlights:** Prioritize important emails, Draft AI-assisted replies, Unsubscribe from newsletters, Bulk archive emails, Create custom automation rules, Manage multiple Gmail accounts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inbox Zero Starter Monthly | $19.99 | per month |
| Inbox Zero Starter Annual | $199.99 | per year |


## Frequently asked questions

### Is MULTI.Day free?

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

### Is Inbox Zero free?

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

### Do MULTI.Day or Inbox Zero have ads?

Neither MULTI.Day nor Inbox Zero shows ads.

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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.*