# NPS North Teacher vs RDS Math

The clearest difference is update cadence: RDS Math at every 5 weeks against NPS North Teacher's every 4 months. NPS North Teacher's advantage is iOS requirement (11.0 vs 13.0). 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 North Teacher ships an update every 4 months, RDS Math every 5 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NPS North Teacher | RDS Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 24 MB | 36 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chandra Sekhar Kalubandi](https://appshunter.io/developer/1468638523) | [DIGITOPPER SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1506789395) |

## What reviewers say

### NPS North Teacher

[App page](https://appshunter.io/ios/app/nps-north-teacher/id6449488862)

**Features:** macOS Compatibility

**In-app purchases:** none


### RDS Math

[App page](https://appshunter.io/ios/app/rds-math/id6758041173)

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

**In-app purchases:** none


## Frequently asked questions

### Is NPS North Teacher free?

NPS North Teacher is free to download, with no in-app purchases.

### Is RDS Math free?

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

### Do NPS North Teacher or RDS Math have ads?

Neither NPS North Teacher nor RDS Math shows ads.

### Which is updated more often, NPS North Teacher or RDS Math?

NPS North Teacher ships an update every 4 months, and RDS Math every 5 weeks. Most recently, NPS North Teacher was updated on October 27, 2026 and RDS Math on October 25, 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.*