# PASS One. vs Mind Center

The clearest difference is in-app purchases: PASS One. at none against Mind Center's 1. Mind Center's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mind Center sells 1 one-off in-app purchase. PASS One. asks for nothing beyond the download.

PASS One. ships an update monthly, Mind Center weekly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PASS One. | Mind Center |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 34 MB | 33 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arman Khachatryan](https://appshunter.io/developer/1679992260) | [Uteach](https://appshunter.io/developer/1626296169) |

## What reviewers say

### PASS One.

[App page](https://appshunter.io/ios/app/pass-one/id6467798371)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mind Center

[App page](https://appshunter.io/ios/app/mind-center-stem-center/id6740261840)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mind Center | $0.99 | one-time |


## Frequently asked questions

### Is PASS One. free?

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

### Is Mind Center free?

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

### Do PASS One. or Mind Center have ads?

Neither PASS One. nor Mind Center shows ads.

### Which is updated more often, PASS One. or Mind Center?

PASS One. ships an update monthly, and Mind Center weekly. Most recently, PASS One. was updated on October 18, 2026 and Mind Center 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.*