# Bitu Mod vs AntiRusty

The clearest difference is in-app purchases: Bitu Mod at none against AntiRusty's 8. Bitu Mod also leads on ads (none vs shown). AntiRusty's advantage is update cadence (every 9 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AntiRusty sells 8 in-app purchases, starting at $2.99 per month. Bitu Mod asks for nothing beyond the download.

Bitu Mod ships an update every 4 weeks, AntiRusty every 9 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Bitu Mod | AntiRusty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Size | 108 MB | 171 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [BITU VIET NAM COMPANY LIMITED](https://appshunter.io/developer/1551918174) | [Tien Dung Pham](https://appshunter.io/developer/6794286705) |

## What reviewers say

### Bitu Mod

[App page](https://appshunter.io/ios/app/bitu-mod/id1551918172)

**Features:** macOS Compatibility

**In-app purchases:** none


### AntiRusty

[App page](https://appshunter.io/ios/app/antirusty-learn-english-ai/id6803999600)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - 1 Month | $2.99 | per month |
| Pro - 3 Months | $7.99 | per 3 months |
| Pro - 12 Months | $24.99 | per year |
| 600 Credits | $0.99 | one-time |
| 1,200 Credits | $1.99 | one-time |
| 2,500 Credits | $4.99 | one-time |
| 5,000 Credits | $8.99 | one-time |
| 12,500 Credits | $19.99 | one-time |


## Frequently asked questions

### Is Bitu Mod free?

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

### Is AntiRusty free?

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

### Do Bitu Mod or AntiRusty have ads?

AntiRusty shows ads; Bitu Mod does not.

### Which is updated more often, Bitu Mod or AntiRusty?

Bitu Mod ships an update every 4 weeks, and AntiRusty every 9 days. Most recently, Bitu Mod was updated on November 3, 2026 and AntiRusty on November 6, 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.*