# Interflexion vs Sharpen

The clearest difference is rating: Sharpen at 4.7 against Interflexion's 3.9. Sharpen also leads on ratings volume (3.3K vs 8). Interflexion's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sharpen sells 8 in-app purchases, starting at $11.99 per month. Interflexion asks for nothing beyond the download.

Sharpen holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Sharpen has 3.3K ratings behind it against 8, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Interflexion | Sharpen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/interflexion/id1505787763/reviews) | **[4.7 (3.3K ratings)](https://appshunter.io/ios/app/sharpen-college-exam-prep/id1595642363/reviews)** |
| Number of ratings | 8 | **3.3K** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 54 MB | 194 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Interflexion Inc.](https://appshunter.io/developer/1505787762) | [McGraw-Hill](https://appshunter.io/developer/325792150) |

## What reviewers say

### Interflexion

[App page](https://appshunter.io/ios/app/interflexion/id1505787763)

Develop leadership and interpersonal skills through interactive role-playing scenarios. Receive personalized feedback to improve professional interactions with colleagues. Requires registration with the service.

**Highlights:** Guided practice in role-playing scenarios, Personalized feedback on interactions, Develop leadership skills, Enhance interpersonal communication, Interactive learning experience

**In-app purchases:** none


### Sharpen

[App page](https://appshunter.io/ios/app/sharpen-college-exam-prep/id1595642363)

This app revolutionizes college exam preparation by assessing knowledge, identifying improvement areas, and offering personalized AI-driven study recommendations. It provides various study tools like quizzes, flashcards, videos, and AI-powered assistance to boost exam readiness.

**Highlights:** AI-driven study recommendations, Personalized knowledge gap analysis, Multiple quiz modes, Bite-sized video lessons, Interactive flashcards, AI study buddy for topic breakdown, Textbook-aligned content

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sharpen+ | $11.99 | per month |
| Sharpen+ | $17.99 | per month |
| Sharpen+ | $17.99 | per month |
| Sharpen+ 3 month | $29.99 | per 3 months |
| Sharpen+ 3 month | $29.99 | per 3 months |
| Sharpen+ 12 month BTS | $59.99 | per year |
| Sharpen+ 12 month | $89.99 | per year |
| Sharpen+ 12 month | $89.99 | per year |

**What reviewers like**

- 🚀 Helpful study tools
- 👍 Intuitive and easy to use
- 💡 Directly tied to textbooks
- 👍 Useful for exam preparation

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Login and sign-in issues
- 💰 Subscription-based model
- 🤔 Limited subject coverage

**Reported bugs**

- Incorrect answer registrations
- Repeated questions across chapters
- Inability to restart quizzes
- Crashing and freezing issues

**Requested features**

- Expand subject coverage to include more disciplines
- Improve stability and reduce crashes
- Add support for landscape mode and multitasking on iPad
- Provide more variety and randomization of practice questions


## Frequently asked questions

### Is Interflexion free?

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

### Is Sharpen free?

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

### Which has better reviews, Interflexion or Sharpen?

Sharpen is rated higher. Interflexion averages 3.9 out of 5 from 8 ratings, while Sharpen averages 4.7 from 3.3K ratings.

### Do Interflexion or Sharpen have ads?

Neither Interflexion nor Sharpen shows ads.

### Which is updated more often, Interflexion or Sharpen?

Interflexion ships an update fortnightly, and Sharpen fortnightly. Most recently, Interflexion was updated on November 3, 2026 and Sharpen on November 7, 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.*