# imap vs Naizu

The clearest difference is in-app purchases: imap at none against Naizu's 4. imap also leads on ads (none vs shown) and iOS requirement (10.2 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Naizu sells 4 in-app purchases, starting at $4.99 per month. imap asks for nothing beyond the download.

imap ships an update every 8 days, Naizu every 4 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | imap | Naizu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 51 MB | 78 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [VTI JAPAN, K.K.](https://appshunter.io/developer/1401279835) | [Ariunbold Enkhbold](https://appshunter.io/developer/1886759857) |

## What reviewers say

### imap

[App page](https://appshunter.io/ios/app/imap/id1444578062)

**Features:** macOS Compatibility

**In-app purchases:** none


### Naizu

[App page](https://appshunter.io/ios/app/naizu/id6760910653)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Silver | $4.99 | per month |
| Gold | $12.99 | per 3 months |
| Diamond | $23.00 | per 6 months |
| Premium | $45.00 | per year |


## Frequently asked questions

### Is imap free?

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

### Is Naizu free?

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

### Do imap or Naizu have ads?

Naizu shows ads; imap does not.

### Which is updated more often, imap or Naizu?

imap ships an update every 8 days, and Naizu every 4 days. Most recently, imap was updated on October 20, 2026 and Naizu on October 24, 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.*