# Sophia vs ADSB

The clearest difference is in-app purchases: ADSB at none against Sophia's 13. ADSB also leads on iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Sophia sells 13 in-app purchases, starting at $5.99 per 7 days. ADSB asks for nothing beyond the download.

## The numbers

| Metric | Sophia | ADSB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (119 ratings)](https://appshunter.io/ios/app/sophia-general-knowledge/id6760919622/reviews)** | — |
| Number of ratings | **119** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 227 MB | 31 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Vik Studios SAS](https://appshunter.io/developer/1896332407) | [Fliight Technologies pty ltd](https://appshunter.io/developer/6805317243) |

## What reviewers say

### Sophia

[App page](https://appshunter.io/ios/app/sophia-general-knowledge/id6760919622)

Learn about history, science, philosophy, and more in just 10 minutes a day. This app offers short, engaging lessons with quizzes to test your knowledge and track your progress. It's designed for quick learning and better retention.

**Highlights:** Daily 10-minute lessons, Wide range of subjects, Engaging quiz format, Progress tracking, Ad-free learning experience, Focus on retention

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sophia Premium Weekly | $5.99 | per 7 days |
| Sophia Premium Annual | $8.99 | per year |
| Sophia Premium Monthly | $8.99 | per month |
| Sophia Premium Monthly | $8.99 | per month |
| Sophia Premium Annual | $17.99 | per year |
| Sophia Premium Annual Plan | $17.99 | per year |
| Sophia Premium Annual | $24.99 | per year |
| Sophia Premium Annual Plan | $24.99 | per year |
| Sophia Premium Annual | $34.99 | per year |
| Sophia Premium Annual | $34.99 | per year |
| Sophia Premium Annual | $44.99 | per year |
| Sophia Premium Annual | $49.99 | per year |
| Sophia Premium Annual | $59.99 | per year |


### ADSB

[App page](https://appshunter.io/ios/app/adsb-me/id6805317241)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Sophia free?

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

### Is ADSB free?

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

### Do Sophia or ADSB have ads?

Neither Sophia nor ADSB shows ads.

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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.*