# BIGsysther vs assisto Messenger basic

The clearest difference is in-app purchases: assisto Messenger basic at none against BIGsysther's 4. assisto Messenger basic also leads on iOS requirement (11.0 vs 17.6). BIGsysther's advantage is update cadence (monthly vs every 5 months). On price, ads 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. assisto Messenger basic asks for nothing beyond the download.

BIGsysther ships an update monthly, assisto Messenger basic every 5 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | BIGsysther | assisto Messenger basic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Size | 49 MB | 36 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BIGsysther AG](https://appshunter.io/developer/1617780880) | [Zone35 GmbH & Co. KG](https://appshunter.io/developer/511910394) |

## 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 |


### assisto Messenger basic

[App page](https://appshunter.io/ios/app/assisto-messenger-basic/id1666332822)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BIGsysther free?

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

### Is assisto Messenger basic free?

assisto Messenger basic is free to download, with no in-app purchases.

### Do BIGsysther or assisto Messenger basic have ads?

Neither BIGsysther nor assisto Messenger basic shows ads.

### Which is updated more often, BIGsysther or assisto Messenger basic?

BIGsysther ships an update monthly, and assisto Messenger basic every 5 months. Most recently, BIGsysther was updated on October 24, 2026 and assisto Messenger basic on October 27, 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.*