# NPS SDNR Parent vs WonderSpy

The clearest difference is update cadence: WonderSpy at every 3 days against NPS SDNR Parent's every 29 months. NPS SDNR Parent's advantage is iOS requirement (12.0 vs 26.0). 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.

NPS SDNR Parent ships an update every 29 months, WonderSpy every 3 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | NPS SDNR Parent | WonderSpy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 days** |
| Size | 33 MB | 299 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chandra Sekhar Kalubandi](https://appshunter.io/developer/1468638523) | [Sourabh Raheja](https://appshunter.io/developer/928974265) |

## What reviewers say

### NPS SDNR Parent

[App page](https://appshunter.io/ios/app/nps-sdnr-parent/id6453466900)

**Features:** macOS Compatibility

**In-app purchases:** none


### WonderSpy

[App page](https://appshunter.io/ios/app/wonderspy/id6760918147)

**In-app purchases:** none


## Frequently asked questions

### Is NPS SDNR Parent free?

NPS SDNR Parent is free to download, with no in-app purchases.

### Is WonderSpy free?

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

### Do NPS SDNR Parent or WonderSpy have ads?

Neither NPS SDNR Parent nor WonderSpy shows ads.

### Which is updated more often, NPS SDNR Parent or WonderSpy?

NPS SDNR Parent ships an update every 29 months, and WonderSpy every 3 days. Most recently, NPS SDNR Parent was updated on November 3, 2026 and WonderSpy on November 9, 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.*