# Duosub vs Lindora Academy

The clearest difference is in-app purchases: Lindora Academy at none against Duosub's 1. Duosub's advantage is update cadence (every 4 weeks vs every 4 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Duosub sells 1 in-app purchase, starting at $1.99 per month. Lindora Academy asks for nothing beyond the download.

Duosub ships an update every 4 weeks, Lindora Academy every 4 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Duosub | Lindora Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Size | 95 MB | 10 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GOWS LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1734173309) | [VAPAUS, LLC.](https://appshunter.io/developer/1152796748) |

## What reviewers say

### Duosub

[App page](https://appshunter.io/ios/app/duosub/id6507464076)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| チケット無制限プラン | $1.99 | per month |


### Lindora Academy

[App page](https://appshunter.io/ios/app/lindora-academy/id6745599568)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duosub free?

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

### Is Lindora Academy free?

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

### Do Duosub or Lindora Academy have ads?

Neither Duosub nor Lindora Academy shows ads.

### Which is updated more often, Duosub or Lindora Academy?

Duosub ships an update every 4 weeks, and Lindora Academy every 4 months. Most recently, Duosub was updated on October 24, 2026 and Lindora Academy on October 5, 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.*