# D vs NGPS

The clearest difference is iOS requirement: D at 12.0 against NGPS's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

D ships an update every 2 months, NGPS monthly. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | D | NGPS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 4 MB | 72 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Jiangsu Sunny Medical Equipments Co., Ltd](https://appshunter.io/developer/1071196077) | [Shengxin Electronic Co., Limited](https://appshunter.io/developer/6793767763) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-view/id6746958016)

**Features:** macOS Compatibility

**In-app purchases:** none


### NGPS

[App page](https://appshunter.io/ios/app/ngps/id6793767760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is NGPS free?

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

### Do D or NGPS have ads?

Neither D nor NGPS shows ads.

### Which is updated more often, D or NGPS?

D ships an update every 2 months, and NGPS monthly. Most recently, D was updated on October 1, 2026 and NGPS on October 10, 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.*