# Sophea.ai vs D

The clearest difference is in-app purchases: Sophea.ai at none against D's 4. Sophea.ai also leads on update cadence (fortnightly vs every 3 months). D's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. D sells 4 one-off in-app purchases. Sophea.ai asks for nothing beyond the download.

Sophea.ai ships an update fortnightly, D every 3 months. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sophea.ai | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Size | 39 MB | 25 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KIEFER TEK LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1840584553) | [YOUNGSIK KIM](https://appshunter.io/developer/1874148336) |

## What reviewers say

### Sophea.ai

[App page](https://appshunter.io/ios/app/sopheaai/id6752689234)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-quest/id6758642840)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter Badge | $0.49 | one-time |
| Coffee (Short) | $0.49 | one-time |
| Coffee Tall | $1.99 | one-time |
| Coffee Grande | $2.99 | one-time |


## Frequently asked questions

### Is Sophea.ai free?

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

### Is D free?

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

### Do Sophea.ai or D have ads?

Neither Sophea.ai nor D shows ads.

### Which is updated more often, Sophea.ai or D?

Sophea.ai ships an update fortnightly, and D every 3 months. Most recently, Sophea.ai was updated on October 11, 2026 and D on October 25, 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.*