# NAR vs Build Formula OS

The clearest difference is update cadence: NAR at every 5 days against Build Formula OS's every 2 months. 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.

NAR ships an update every 5 days, Build Formula OS every 2 months. The most recent releases landed on September 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | NAR | Build Formula OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 44 MB | 40 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Natoinal Association of Realtors - India](https://appshunter.io/developer/879828995) | [Vshwan](https://appshunter.io/developer/1580165990) |

## What reviewers say

### NAR

[App page](https://appshunter.io/ios/app/nar-india/id6446204601)

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

**In-app purchases:** none


### Build Formula OS

[App page](https://appshunter.io/ios/app/build-formula-os/id6748576227)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NAR free?

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

### Is Build Formula OS free?

Build Formula OS is free to download, with no in-app purchases.

### Do NAR or Build Formula OS have ads?

Neither NAR nor Build Formula OS shows ads.

### Which is updated more often, NAR or Build Formula OS?

NAR ships an update every 5 days, and Build Formula OS every 2 months. Most recently, NAR was updated on September 29, 2026 and Build Formula OS on October 24, 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.*