# BIGsysther vs Mindrox

The clearest difference is update cadence: Mindrox at every 11 days against BIGsysther's monthly. Mindrox also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BIGsysther sells 4 in-app purchases, starting at $17.99 per month and Mindrox sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

BIGsysther ships an update monthly, Mindrox every 11 days. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BIGsysther | Mindrox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Size | 42 MB | 15 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [BIGsysther AG](https://appshunter.io/developer/1617780880) | [Mindrox GmbH](https://appshunter.io/developer/6773317899) |

## What reviewers say

### BIGsysther

[App page](https://appshunter.io/ios/app/bigsysther/id1617780878)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basis-Abo | $17.99 | per month |
| Monatsabo | $34.99 | per month |
| Jahresabo | $349.99 | per year |
| 10 Credits | $5.99 | one-time |


### Mindrox

[App page](https://appshunter.io/ios/app/mindrox/id6773317897)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Core monthly | $7.99 | per month |
| Pro monthly | $14.99 | per month |
| Core yearly | $79.99 | per year |
| Pro yearly | $129.99 | per year |


## Frequently asked questions

### Is BIGsysther free?

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

### Is Mindrox free?

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

### Do BIGsysther or Mindrox have ads?

Neither BIGsysther nor Mindrox shows ads.

### Which is updated more often, BIGsysther or Mindrox?

BIGsysther ships an update monthly, and Mindrox every 11 days. Most recently, BIGsysther was updated on September 10, 2026 and Mindrox on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*