# Zent vs Sailor io

The clearest difference is in-app purchases: Sailor io at none against Zent's 1. Zent's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zent sells 1 one-off in-app purchase. Sailor io asks for nothing beyond the download.

Zent ships an update every 3 weeks, Sailor io every 3 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Zent | Sailor io |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 32 MB | 43 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuichi Kubota](https://appshunter.io/developer/1258729980) | [SAILOR.IO LIMITED](https://appshunter.io/developer/1867469537) |

## What reviewers say

### Zent

[App page](https://appshunter.io/ios/app/zent-crypto-convertor/id6744847183)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $7.99 | one-time |


### Sailor io

[App page](https://appshunter.io/ios/app/sailor-io/id6757532957)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zent free?

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

### Is Sailor io free?

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

### Do Zent or Sailor io have ads?

Both Zent and Sailor io show ads.

### Which is updated more often, Zent or Sailor io?

Zent ships an update every 3 weeks, and Sailor io every 3 months. Most recently, Zent was updated on October 25, 2026 and Sailor io on October 12, 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.*