# GEN GST vs NNFS

The clearest difference is update cadence: NNFS at every 6 days against GEN GST's every 3 weeks. GEN GST's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GEN GST ships an update every 3 weeks, NNFS every 6 days. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GEN GST | NNFS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 232 MB | 10 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sag Infotech Private limited](https://appshunter.io/developer/574363251) | [M2M TECHNOLOGIES](https://appshunter.io/developer/1276988748) |

## What reviewers say

### GEN GST

[App page](https://appshunter.io/ios/app/gen-gst/id1194020042)

**Features:** macOS Compatibility

**In-app purchases:** none


### NNFS

[App page](https://appshunter.io/ios/app/nnfs/id6797228978)

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

**In-app purchases:** none


## Frequently asked questions

### Is GEN GST free?

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

### Is NNFS free?

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

### Do GEN GST or NNFS have ads?

Neither GEN GST nor NNFS shows ads.

### Which is updated more often, GEN GST or NNFS?

GEN GST ships an update every 3 weeks, and NNFS every 6 days. Most recently, GEN GST was updated on October 13, 2026 and NNFS on September 29, 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.*