# ECTOR vs Mojiru

The clearest difference is update cadence: Mojiru at every 2 days against ECTOR's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ECTOR sells 1 in-app purchase, starting at $4.99 per month and Mojiru sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ECTOR ships an update every 9 days, Mojiru every 2 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ECTOR | Mojiru |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Size | 46 MB | 120 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wei Sun](https://appshunter.io/developer/1785946634) | [Rokku Studio Inc.](https://appshunter.io/developer/1887351569) |

## What reviewers say

### ECTOR

[App page](https://appshunter.io/ios/app/ector-audition-tracker/id6760742725)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECTOR Pro Monthly | $4.99 | per month |


### Mojiru

[App page](https://appshunter.io/ios/app/mojiru-learn-japanese/id6761292888)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mojiru Pro (Monthly) | $4.99 | per month |
| Mojiru Pro (Annual) | $49.99 | per year |
| Mojiru Pro (Lifetime) | $89.99 | one-time |


## Frequently asked questions

### Is ECTOR free?

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

### Is Mojiru free?

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

### Do ECTOR or Mojiru have ads?

Neither ECTOR nor Mojiru shows ads.

### Which is updated more often, ECTOR or Mojiru?

ECTOR ships an update every 9 days, and Mojiru every 2 days. Most recently, ECTOR was updated on October 25, 2026 and Mojiru on October 15, 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.*