# Zetamac problems vs Deer Stalking DSC1 Prep

The clearest difference is in-app purchases: Zetamac problems at none against Deer Stalking DSC1 Prep's 3. Deer Stalking DSC1 Prep's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Deer Stalking DSC1 Prep sells 3 in-app purchases, starting at $4.99 per month. Zetamac problems asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Zetamac problems | Deer Stalking DSC1 Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zetamac-problems/id6743952737/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 4 MB | 4 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chhaya Patel](https://appshunter.io/developer/1736176770) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### Zetamac problems

[App page](https://appshunter.io/ios/app/zetamac-problems/id6743952737)

Sharpen your math skills with daily practice problems. This app offers diverse problem types, customizable difficulty, and timed challenges to prepare for exams and interviews. Get instant feedback to improve your accuracy and speed.

**Highlights:** Diverse math problem types, Customizable number range, Timed practice challenges, Realistic quantitative simulations, Instant feedback on answers

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

**In-app purchases:** none


### Deer Stalking DSC1 Prep

[App page](https://appshunter.io/ios/app/deer-stalking-dsc1-prep/id6793543253)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $14.99 | per year |
| Lifetime Access | $24.99 | one-time |


## Frequently asked questions

### Is Zetamac problems free?

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

### Is Deer Stalking DSC1 Prep free?

Deer Stalking DSC1 Prep is free to download, with in-app purchases available.

### Do Zetamac problems or Deer Stalking DSC1 Prep have ads?

Zetamac problems shows ads; Deer Stalking DSC1 Prep does not.

### Which is updated more often, Zetamac problems or Deer Stalking DSC1 Prep?

Zetamac problems ships an update every 2 months, and Deer Stalking DSC1 Prep every 2 months. Most recently, Zetamac problems was updated on November 4, 2026 and Deer Stalking DSC1 Prep on October 31, 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.*