# LDA vs Ôn thi đấu thầu

The clearest difference is iOS requirement: LDA at 13.0 against Ôn thi đấu thầu's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | LDA | Ôn thi đấu thầu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 57 MB | 26 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Minh Nguyen Ba](https://appshunter.io/developer/1549498900) | [Ngo Ngoc Minh](https://appshunter.io/developer/6778264253) |

## What reviewers say

### LDA

[App page](https://appshunter.io/ios/app/lda-e/id6747794644)

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

**In-app purchases:** none


### Ôn thi đấu thầu

[App page](https://appshunter.io/ios/app/on-thi-au-thau/id6779155738)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LDA free?

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

### Is Ôn thi đấu thầu free?

Ôn thi đấu thầu is free to download, with no in-app purchases.

### Do LDA or Ôn thi đấu thầu have ads?

Neither LDA nor Ôn thi đấu thầu 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.*