# Contra vs FlashRevise

The clearest difference is in-app purchases: FlashRevise at none against Contra's 2. FlashRevise also leads on iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Contra sells 2 in-app purchases, starting at $4.99 per month. FlashRevise asks for nothing beyond the download.

Contra ships an update every 2 months, FlashRevise every 6 weeks. The most recent releases landed on September 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Contra | FlashRevise |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Freemium | — |
| Size | 75 MB | 6 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Taj Singh](https://appshunter.io/developer/1847074810) | [Elyas Cherouat](https://appshunter.io/developer/6774955018) |

## What reviewers say

### Contra

[App page](https://appshunter.io/ios/app/contra/id6761030724)

Engage in structured debates with an AI opponent to sharpen your critical thinking skills. Receive detailed feedback on your logic, rhetoric, evidence, and originality. Practice solo, challenge friends, or join public arenas on diverse topics.

**Highlights:** AI argumentative opponent, Detailed performance scoring, AI coaching and feedback, Solo and 1v1 challenges, Public debate arenas, Daily new topics, Real-time streaming debates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Abonnement annuel | $39.99 | per year |


### FlashRevise

[App page](https://appshunter.io/ios/app/flashrevise/id6774955016)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contra free?

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

### Is FlashRevise free?

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

### Do Contra or FlashRevise have ads?

Neither Contra nor FlashRevise shows ads.

### Which is updated more often, Contra or FlashRevise?

Contra ships an update every 2 months, and FlashRevise every 6 weeks. Most recently, Contra was updated on September 25, 2026 and FlashRevise on October 8, 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.*