# FixoLang vs Thunderbolt24

The clearest difference is in-app purchases: Thunderbolt24 at none against FixoLang's 6. FixoLang's advantage is update cadence (every 9 days vs every 5 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. FixoLang sells 6 one-off in-app purchases. Thunderbolt24 asks for nothing beyond the download.

FixoLang ships an update every 9 days, Thunderbolt24 every 5 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FixoLang | Thunderbolt24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/fixolang-ielts-prep-app/id6448477499/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 205 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NGB EDUCATION PRIVATE LIMITED](https://appshunter.io/developer/1540594552) | [Nikhar Sachdeva](https://appshunter.io/developer/1877908716) |

## What reviewers say

### FixoLang

[App page](https://appshunter.io/ios/app/fixolang-ielts-prep-app/id6448477499)

This app offers AI-powered IELTS speaking practice and personalized feedback to help users achieve high band scores. It includes a vast library of practice topics and expert guidance on grammar, vocabulary, and pronunciation.

**Highlights:** AI-powered speaking assessment, Extensive practice library, Personalized feedback on grammar and vocabulary, Pronunciation and MTI assistance, 24/7 learning companion

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $6.99 | one-time |
| Intermediate | $11.99 | one-time |
| Advanced | $19.99 | one-time |
| Pro | $34.99 | one-time |
| Elite | $69.99 | one-time |
| Ultimate | $99.99 | one-time |


### Thunderbolt24

[App page](https://appshunter.io/ios/app/thunderbolt24/id6761624532)

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

**In-app purchases:** none


## Frequently asked questions

### Is FixoLang free?

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

### Is Thunderbolt24 free?

Thunderbolt24 is free to download, with no in-app purchases.

### Do FixoLang or Thunderbolt24 have ads?

Neither FixoLang nor Thunderbolt24 shows ads.

### Which is updated more often, FixoLang or Thunderbolt24?

FixoLang ships an update every 9 days, and Thunderbolt24 every 5 months. Most recently, FixoLang was updated on November 3, 2026 and Thunderbolt24 on October 28, 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.*