# Rock vs Perspective AI

The clearest difference is review sentiment: Rock at 86% against Perspective AI's 32%. Rock also leads on monetization model (free with in-app purchases vs subscription) and ads (none vs shown). Perspective AI's advantage is update cadence (every 4 days vs every 3 weeks) and ratings volume (1.3K vs 65). On price and in-app purchases there is nothing between them.

Both are free to download. Rock sells 3 in-app purchases, starting at $3.99 per 7 days and Perspective AI sells 6 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rock holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Perspective AI has 1.3K ratings behind it against 65, so its average is the more settled of the two. Written reviews point the same way: 86% of Rock's written reviews are positive against 32% of Perspective AI's.

Rock ships an update every 3 weeks, Perspective AI every 4 days. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Rock | Perspective AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (65 ratings)](https://appshunter.io/ios/app/rock-scan/id6498787560/reviews)** | [3.9 (1.3K ratings)](https://appshunter.io/ios/app/perspective-ai-your-assistant/id6736531170/reviews) |
| Number of ratings | 65 | **1.3K** |
| Positive reviews | **85.7% of reviews** | 32.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 87 MB | 168 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Dovran Muhammetrustemov](https://appshunter.io/developer/1741797293) | [App Vizyon](https://appshunter.io/developer/1767797689) |

## What reviewers say

### Rock

[App page](https://appshunter.io/ios/app/rock-scan/id6498787560)

This application allows users to scan and identify rocks and minerals directly from their mobile device. It provides a convenient way to learn about geological samples encountered in everyday life.

**Highlights:** Scan rocks and minerals, Identify geological samples, Mobile identification tool, Learn about rock types

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access Rock-Scan pro weekly | $3.99 | per 7 days |
| Access Rock-Scan pro monthly | $9.99 | per month |
| Access Rock-Scan pro yearly | $59.99 | per year |

**What reviewers like**

- 👍 User-friendly interface
- 🚀 Fast identification
- 💡 Educational content
- 💎 Accurate rock identification
- ✨ Identifies non-rocks

**What reviewers complain about**

- 🐛 Inaccurate information
- 🐛 App doesn't work after update
- 🐛 Identified as pastry/cake/metal/charcoal/pottery
- 🐛 Cannot identify common rocks
- 🐛 Identified as not a rock or mineral

**Reported bugs**

- App doesn't work after update
- Failed to connect
- Identified as not a rock or mineral
- Cannot identify common rocks
- Inaccurate identification of some rocks


### Perspective AI

[App page](https://appshunter.io/ios/app/perspective-ai-your-assistant/id6736531170)

This app offers four distinct AI personas to provide personalized guidance in areas like career, learning, hobbies, and motivation. Engage in intelligent conversations for tailored advice and real-time support across various life aspects.

**Highlights:** Four specialized AI assistants, Personalized career and academic advice, Information discovery and learning support, Hobby recommendations and skill enhancement, Motivation and energy boosting tips, Intelligent, conversational chats

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Limited Offer Weekly | $8.99 | per 7 days |
| Weekly 50% Off Special Offer | $8.99 | per 7 days |
| Weekly 80% Off Special Offer | $8.99 | per 7 days |
| Weekly | $8.99 | per 7 days |
| Weekly Promo | $8.99 | per 7 days |
| Lifetime Access | $39.99 | one-time |

**What reviewers like**

- 💡 Helpful for self-improvement
- 🚀 Keeps me motivated and inspired
- 👍 Variety of useful features
- 🚀 Intuitive and user-friendly
- 💡 Encourages creativity

**What reviewers complain about**

- 🐛 Misleading free trial claims
- 💰 Expensive subscription
- 🚫 Doesn't work as advertised
- 🚫 Useless and ineffective
- 🚫 Charges despite cancellation

**Reported bugs**

- Immediate charges for 'free' trial
- Inability to cancel subscription
- Lack of expected features and capabilities

**Requested features**

- Improve transparency around pricing and trial offers
- Provide better customer support and refund options
- Enhance app functionality to match advertising claims


## Frequently asked questions

### Is Rock free?

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

### Is Perspective AI free?

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

### Which has better reviews, Rock or Perspective AI?

Rock is rated higher. Rock averages 4.4 out of 5 from 65 ratings, while Perspective AI averages 3.9 from 1.3K ratings.

### Do Rock or Perspective AI have ads?

Perspective AI shows ads; Rock does not.

### Which is updated more often, Rock or Perspective AI?

Rock ships an update every 3 weeks, and Perspective AI every 4 days. Most recently, Rock was updated on November 4, 2026 and Perspective AI on November 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.*