# 20 Questions · Mind Reader vs Solf Freq Generator

The clearest difference is in-app purchases: Solf Freq Generator at none against 20 Questions · Mind Reader's 6. On price and iOS requirement there is nothing between them.

Both are free to download. 20 Questions · Mind Reader sells 6 in-app purchases, starting at $4.99 per 7 days. Solf Freq Generator asks for nothing beyond the download.

## The numbers

| Metric | 20 Questions · Mind Reader | Solf Freq Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (399 ratings)](https://appshunter.io/ios/app/20-questions-mind-reader/id6477538210/reviews)** | — |
| Number of ratings | **399** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 169 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | **iPhone** | — |
| Age rating | 12+ | 4+ |
| Developer | [Neagu Robert PFA](https://appshunter.io/developer/1445555542) | [Justin Ponder](https://appshunter.io/developer/6771997451) |

## What reviewers say

### 20 Questions · Mind Reader

[App page](https://appshunter.io/ios/app/20-questions-mind-reader/id6477538210)

This app offers a futuristic twist on the classic 20 questions game. Select a category, think of a secret item, and answer yes/no questions to see if the AI can guess your thought within 20 questions. It's a fun, mentally stimulating experience that respects your privacy.

**Highlights:** AI-powered guessing, Classic 20 questions format, Multiple categories (animals, movies, sports), Privacy-focused, no personal data collected, Visually stunning and mentally stimulating

**Features:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| 100 | $0.99 | one-time |
| 250 | $1.99 | one-time |
| 500 | $2.99 | one-time |
| 1000 | $4.99 | one-time |

**What reviewers like**

- 🎮 Fun and engaging gameplay concept
- 👍 User-friendly interface
- ⚡ Works well most of the time
- 💰 Affordable energy pricing (when purchased)

**What reviewers complain about**

- 💸 Aggressive monetization model - pay-to-play after 3 free games
- 🧠 Poor AI performance - fails to guess common objects
- ⚠️ Charges energy even when AI fails to guess
- 🔄 No energy refresh or ad-based alternative
- ❌ Requires subscription instead of one-time purchase

**Reported bugs**

- App goes blank and becomes unplayable
- AI fails to guess common objects (Mickey Mouse, Hot Dog)
- AI lists categories instead of specific items in Animals category
- AI ignores hints provided by users
- Energy depletes on game restarts

**Requested features**

- Ad-supported free play option
- One-time purchase instead of subscription
- Energy refresh system over time
- Images to accompany answers
- User-submitted answers when AI cannot guess


### Solf Freq Generator

[App page](https://appshunter.io/ios/app/solf-freq-generator/id6771997449)

**In-app purchases:** none


## Frequently asked questions

### Is 20 Questions · Mind Reader free?

20 Questions · Mind Reader is free to download, with in-app purchases available.

### Is Solf Freq Generator free?

Solf Freq Generator is free to download, with no in-app purchases.

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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.*