# 121 vs NIA

The clearest difference is update cadence: 121 at fortnightly against NIA's every 6 months. NIA's advantage is iOS requirement (14.1 vs 16.0). 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.

121 ships an update fortnightly, NIA every 6 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 121 | NIA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Size | 254 MB | 72 MB |
| Requires iOS | 16.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jones Lang LaSalle Incorporated](https://appshunter.io/developer/429518140) | [National Insulation Association](https://appshunter.io/developer/1362527927) |

## What reviewers say

### 121

[App page](https://appshunter.io/ios/app/121-131-steuart/id1554815853)

**Features:** Apple Wallet

**In-app purchases:** none


### NIA

[App page](https://appshunter.io/ios/app/nia/id6443906312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 121 free?

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

### Is NIA free?

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

### Do 121 or NIA have ads?

Neither 121 nor NIA shows ads.

### Which is updated more often, 121 or NIA?

121 ships an update fortnightly, and NIA every 6 months. Most recently, 121 was updated on October 30, 2026 and NIA 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.*