# FLEX vs AI Expert

The clearest difference is in-app purchases: FLEX at none against AI Expert's 4. FLEX also leads on ads (none vs shown) and iOS requirement (10.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. AI Expert sells 4 in-app purchases, starting at $6.99 per 7 days. FLEX asks for nothing beyond the download.

FLEX ships an update every 9 days, AI Expert every 3 weeks. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | FLEX | AI Expert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (2.1K ratings)](https://appshunter.io/ios/app/ai-expert-chatbot-assistant/id6449592570/reviews)** |
| Number of ratings | — | **2.1K** |
| Positive reviews | — | 22.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 35 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Industries Fil Metallique Major Ltee, Les](https://appshunter.io/developer/1500595124) | [RAWSTHORN LTD](https://appshunter.io/developer/1689743318) |

## What reviewers say

### FLEX

[App page](https://appshunter.io/ios/app/flex-mat-sensor/id1521518067)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Expert

[App page](https://appshunter.io/ios/app/ai-expert-chatbot-assistant/id6449592570)

This AI-powered assistant offers a wide range of capabilities, from writing and coding help to personalized suggestions for entertainment and career advancement. It acts as a versatile companion for learning, social media, business, and more, providing expert guidance for various tasks.

**Highlights:** AI-powered writing and grammar correction, Content generation and summarization, Coding and math problem solving, Translation services, Personalized learning and career guidance, Social media content creation, Business and sales strategy assistance

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly premium with free trial | $6.99 | per 7 days |
| Weekly premium | $6.99 | per 7 days |
| Yearly premium access | $19.99 | per year |
| Yearly premium access | $39.99 | per year |

**What reviewers like**

- 👍 Helpful for school work
- 💡 Provides writing ideas
- 👍 Great app overall

**What reviewers complain about**

- 🐛 App not working/crashing
- 🐛 Poor image description
- 💰 Limited features with paid subscription
- 🐛 Incorrect answers provided

**Reported bugs**

- App not functioning for extended periods
- Inconsistent app behavior compared to initial release

**Requested features**

- Improve image description capabilities
- Expand content generation beyond short responses
- Enhance grammar and spelling checks


## Frequently asked questions

### Is FLEX free?

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

### Is AI Expert free?

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

### Do FLEX or AI Expert have ads?

AI Expert shows ads; FLEX does not.

### Which is updated more often, FLEX or AI Expert?

FLEX ships an update every 9 days, and AI Expert every 3 weeks. Most recently, FLEX was updated on October 5, 2026 and AI Expert on October 15, 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.*