# NSC Exam Prep vs RI Sync

The clearest difference is update cadence: NSC Exam Prep at every 5 months against RI Sync's every 13 months. NSC Exam Prep also leads on iOS requirement (13.0 vs 15.0). 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.

NSC Exam Prep ships an update every 5 months, RI Sync every 13 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | NSC Exam Prep | RI Sync |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 13 months |
| Monetization | Free | — |
| Size | 98 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [HeyMath! Innovation Lab(S) PTE. LTD.](https://appshunter.io/developer/723299512) | [The Independent Institute of Education](https://appshunter.io/developer/1219413708) |

## What reviewers say

### NSC Exam Prep

[App page](https://appshunter.io/ios/app/nsc-exam-prep-maths/id1178888296)

Access past exam papers and detailed, animated solutions for mathematics. Organize practice by year or topic to systematically improve understanding and presentation of problem-solving techniques.

**Highlights:** Exam papers 2012-2022, Step-by-step animated solutions, Organized by year and topic, Mock exam practice, Focus on individual topics, Aligned with marking schemes

**In-app purchases:** none


### RI Sync

[App page](https://appshunter.io/ios/app/ri-sync/id1231619494)

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

**In-app purchases:** none


## Frequently asked questions

### Is NSC Exam Prep free?

NSC Exam Prep is free to download, with no in-app purchases.

### Is RI Sync free?

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

### Do NSC Exam Prep or RI Sync have ads?

Neither NSC Exam Prep nor RI Sync shows ads.

### Which is updated more often, NSC Exam Prep or RI Sync?

NSC Exam Prep ships an update every 5 months, and RI Sync every 13 months. Most recently, NSC Exam Prep was updated on October 13, 2026 and RI Sync on October 3, 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.*