# Sovi.AI vs Cortex Flex Performance

The clearest difference is ratings volume: Sovi.AI at 4.9K against Cortex Flex Performance's 9. Sovi.AI also leads on update cadence (weekly vs fortnightly). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Sovi.AI sells 15 in-app purchases, starting at $3.99 per 7 days and Cortex Flex Performance sells 1 in-app purchase, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Sovi.AI against 5.0 for Cortex Flex Performance. That said, the two scores are not equally well evidenced: Sovi.AI has 4.9K ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 95% of Sovi.AI's written reviews are positive against 100% of Cortex Flex Performance's.

Sovi.AI ships an update weekly, Cortex Flex Performance fortnightly. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Sovi.AI | Cortex Flex Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (4.9K ratings)](https://appshunter.io/ios/app/soviai-ai-study-companion/id6740720452/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/cortex-flex-performance/id6749107751/reviews)** |
| Number of ratings | **4.9K** | 9 |
| Positive reviews | 94.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 166 MB | 60 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Edgewise PTE](https://appshunter.io/developer/1874212532) | [Cortex Flex Inc](https://appshunter.io/developer/1828821837) |

## What reviewers say

### Sovi.AI

[App page](https://appshunter.io/ios/app/soviai-ai-study-companion/id6740720452)

Instantly solve homework problems by taking a picture. Get detailed, step-by-step solutions and ask follow-up questions to truly understand the material. Supports a wide range of subjects and academic levels.

**Highlights:** Snap photos of homework for instant solutions, Detailed step-by-step explanations, Multiple solution methods available, Ask follow-up questions for clarification, Supports various subjects and academic levels, Review and learn at your own pace

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Weekly | $3.99 | per 7 days |
| Weekly | $3.99 | per 7 days |
| Weekly | $6.99 | per 7 days |
| Monthly | $12.99 | per month |
| Monthly | $12.99 | per month |
| Monthly | $12.99 | per month |
| Annual | $49.99 | per year |
| Annual | $69.99 | per year |
| Annual | $69.99 | per year |
| Annual | $89.99 | per year |
| Annual | $89.99 | per year |
| 1 month | $0.99 | one-time |
| One-Month | $5.99 | one-time |
| One Month | $14.99 | one-time |

**What reviewers like**

- 🚀 Fast and accurate answers
- 👍 Helpful step-by-step explanations
- 🚀 Instant response to questions
- 👍 Improved grades and academic performance
- 👍 User-friendly interface

**What reviewers complain about**

- 🐛 Occasional incorrect answers
- 🔒 Concerns about academic integrity

**Reported bugs**

- Freezing or crashing issues
- Compatibility problems with older devices

**Requested features**

- More chances or attempts for users
- Expanded question types and subjects


### Cortex Flex Performance

[App page](https://appshunter.io/ios/app/cortex-flex-performance/id6749107751)

This app offers brain training routines developed by neuroscientists to enhance focus, reaction time, and mental resilience for athletes. It includes specialized workouts, mental skills tools, and insights from recruiters to help users perform at their peak.

**Highlights:** Neuropriming Workouts, Mental Skills Training, Recruitment Insights, Game-Day Prep, Elite Athlete Community

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex Monthly | $29.99 | per month |


## Frequently asked questions

### Is Sovi.AI free?

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

### Is Cortex Flex Performance free?

Cortex Flex Performance is free to download, with in-app purchases available.

### Which has better reviews, Sovi.AI or Cortex Flex Performance?

Cortex Flex Performance is rated higher. Sovi.AI averages 4.9 out of 5 from 4.9K ratings, while Cortex Flex Performance averages 5.0 from 9 ratings.

### Do Sovi.AI or Cortex Flex Performance have ads?

Neither Sovi.AI nor Cortex Flex Performance shows ads.

### Which is updated more often, Sovi.AI or Cortex Flex Performance?

Sovi.AI ships an update weekly, and Cortex Flex Performance fortnightly. Most recently, Sovi.AI was updated on September 26, 2026 and Cortex Flex Performance on September 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.*