# CN Interview vs GridMath

The clearest difference is in-app purchases: CN Interview at none against GridMath's 3. GridMath's advantage is ads (none vs shown) and update cadence (daily vs every 24 months). On price and device support there is nothing between them.

Both are free to download. GridMath sells 3 one-off in-app purchases. CN Interview asks for nothing beyond the download.

CN Interview ships an update every 24 months, GridMath daily. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CN Interview | GridMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cn-interview/id623822478/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 24 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 27 MB | 34 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sok Rotha](https://appshunter.io/developer/505856066) | [Wojciech Szczurek](https://appshunter.io/developer/1454681479) |

## What reviewers say

### CN Interview

[App page](https://appshunter.io/ios/app/cn-interview/id623822478)

Access a collection of audio interviews from a highly respected Cambodian monk and scholar. This app is essential for those interested in Khmer literature and Buddhist teachings.

**Highlights:** Collection of audio interviews, Focus on Khmer literature, Explores Buddhist teachings, Content from a respected scholar

**In-app purchases:** none


### GridMath

[App page](https://appshunter.io/ios/app/gridmath/id6754144816)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Tokens | $2.99 | one-time |
| 50 Tokens | $4.99 | one-time |
| 100 Tokens | $5.99 | one-time |


## Frequently asked questions

### Is CN Interview free?

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

### Is GridMath free?

GridMath is free to download, with in-app purchases available.

### Do CN Interview or GridMath have ads?

CN Interview shows ads; GridMath does not.

### Which is updated more often, CN Interview or GridMath?

CN Interview ships an update every 24 months, and GridMath daily. Most recently, CN Interview was updated on October 17, 2026 and GridMath on October 8, 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.*