# NPI SDK vs Wiggli Client

The clearest difference is update cadence: Wiggli Client at every 3 weeks against NPI SDK's every 9 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.

NPI SDK ships an update every 9 months, Wiggli Client every 3 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | NPI SDK | Wiggli Client |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 20 MB | 86 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nippon Primex Inc.](https://appshunter.io/developer/792545796) | [Hireme](https://appshunter.io/developer/1723195889) |

## What reviewers say

### NPI SDK

[App page](https://appshunter.io/ios/app/npi-sdk/id792545793)

**In-app purchases:** none


### Wiggli Client

[App page](https://appshunter.io/ios/app/wiggli-client/id6475047294)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NPI SDK free?

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

### Is Wiggli Client free?

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

### Do NPI SDK or Wiggli Client have ads?

Neither NPI SDK nor Wiggli Client shows ads.

### Which is updated more often, NPI SDK or Wiggli Client?

NPI SDK ships an update every 9 months, and Wiggli Client every 3 weeks. Most recently, NPI SDK was updated on September 8, 2026 and Wiggli Client on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*