# Sonic Math vs PHVD

The clearest difference is in-app purchases: PHVD at none against Sonic Math's 1. PHVD also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Sonic Math sells 1 one-off in-app purchase. PHVD asks for nothing beyond the download.

Sonic Math ships an update every 3 weeks, PHVD fortnightly. The most recent releases landed on August 28, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Sonic Math | PHVD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 37 MB | 37 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MASAKI CHIBA](https://appshunter.io/developer/1890488277) | [khorshid mohammad](https://appshunter.io/developer/1532738698) |

## What reviewers say

### Sonic Math

[App page](https://appshunter.io/ios/app/sonic-math-mental-math-drill/id6765611618)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


### PHVD

[App page](https://appshunter.io/ios/app/phvd/id6790541119)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sonic Math free?

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

### Is PHVD free?

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

### Do Sonic Math or PHVD have ads?

Sonic Math shows ads; PHVD does not.

### Which is updated more often, Sonic Math or PHVD?

Sonic Math ships an update every 3 weeks, and PHVD fortnightly. Most recently, Sonic Math was updated on August 28, 2026 and PHVD on September 13, 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.*