# Viko vs Lazidi

The clearest difference is update cadence: Viko at weekly against Lazidi's every 3 weeks. Viko also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Viko sells 3 in-app purchases, starting at $2.99 per month and Lazidi sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Viko ships an update weekly, Lazidi every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Viko | Lazidi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lazidi/id6808170393/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 26 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [H2Tech](https://appshunter.io/developer/1830983745) | [Pham Hung](https://appshunter.io/developer/6785816296) |

## What reviewers say

### Viko

[App page](https://appshunter.io/ios/app/viko/id6753932320)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói cơ bản | $2.99 | per month |
| Gói chuyên sâu | $6.99 | per month |
| Gói bổ trợ | $9.99 | per month |


### Lazidi

[App page](https://appshunter.io/ios/app/lazidi/id6808170393)

This app offers illustrated vocabulary flashcards for Vietnamese speakers learning English and Chinese, along with a Vietnamese vocabulary builder. It provides offline access to extensive word banks, pronunciation guides, and etymology for Chinese characters. Users can track progress and unlock achievements.

**Highlights:** Illustrated vocabulary flashcards, IPA and Pinyin pronunciation with audio, Vietnamese etymology for Chinese characters, Extensive word banks for English, Chinese, and Vietnamese, Offline access, no account or internet needed, Progress tracking and achievements, Home screen and lock screen widgets

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English full pack | $4.99 | one-time |
| Chinese full pack | $4.99 | one-time |
| Japanese full pack | $4.99 | one-time |
| All languages | $14.99 | one-time |


## Frequently asked questions

### Is Viko free?

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

### Is Lazidi free?

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

### Do Viko or Lazidi have ads?

Neither Viko nor Lazidi shows ads.

### Which is updated more often, Viko or Lazidi?

Viko ships an update weekly, and Lazidi every 3 weeks. Most recently, Viko was updated on October 25, 2026 and Lazidi on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*