# VietSpeaks vs Chembloom

The clearest difference is ads: VietSpeaks at none against Chembloom's shown. Chembloom's advantage is update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. VietSpeaks sells 4 in-app purchases, starting at $4.99 per month and Chembloom sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

VietSpeaks ships an update every 3 weeks, Chembloom every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | VietSpeaks | Chembloom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chembloom/id6790741973/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 157 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Curtis](https://appshunter.io/developer/1864175511) | [MAI VU](https://appshunter.io/developer/848393658) |

## What reviewers say

### VietSpeaks

[App page](https://appshunter.io/ios/app/vietspeaks/id6757008116)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal Monthly | $4.99 | per month |
| VietSpeaks Pro | $9.99 | per month |
| VietSpeaks Personal (Annual) | $49.99 | per year |
| VietSpeaks Pro (Annual) | $99.99 | per year |


### Chembloom

[App page](https://appshunter.io/ios/app/chembloom/id6790741973)

This app helps high school students master chemistry with AI-powered tutoring, practice tests, and interactive learning tools. It offers step-by-step solutions, progress tracking, and gamified learning to prepare for exams.

**Highlights:** AI tutor for step-by-step problem solving, Practice tests aligned with graduation exams, Interactive periodic table and reaction database, Gamified learning with daily challenges, Progress tracking and weak point analysis, Flashcards and mind maps

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Lượt giải AI | $0.99 | one-time |
| 100 lượt giải AI | $2.99 | one-time |
| 300 lượt giải AI | $6.99 | one-time |


## Frequently asked questions

### Is VietSpeaks free?

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

### Is Chembloom free?

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

### Do VietSpeaks or Chembloom have ads?

Chembloom shows ads; VietSpeaks does not.

### Which is updated more often, VietSpeaks or Chembloom?

VietSpeaks ships an update every 3 weeks, and Chembloom every 5 days. Most recently, VietSpeaks was updated on October 30, 2026 and Chembloom on October 31, 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.*