# Calculation Training vs PSAT/NCS 기초연산 트레이닝

The clearest difference is in-app purchases: Calculation Training at none against PSAT/NCS 기초연산 트레이닝's 2. PSAT/NCS 기초연산 트레이닝's advantage is update cadence (every 3 days vs every 10 days) and iOS requirement (13.0 vs 16.0). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. PSAT/NCS 기초연산 트레이닝 sells 2 in-app purchases, starting at $1.99 per month. Calculation Training asks for nothing beyond the download.

Calculation Training ships an update every 10 days, PSAT/NCS 기초연산 트레이닝 every 3 days. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Calculation Training | PSAT/NCS 기초연산 트레이닝 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Freemium | Freemium |
| Size | 3 MB | 77 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JinWook You](https://appshunter.io/developer/1837824846) | [JONGHYEOK PARK](https://appshunter.io/developer/1838106188) |

## What reviewers say

### Calculation Training

[App page](https://appshunter.io/ios/app/calculation-training-ottugi/id6751992934)

This app offers timed training for mental arithmetic and estimation skills. It includes various arithmetic operations, comparison challenges, and graded sessions to improve your calculation speed and accuracy. Unlock full features with a premium subscription.

**Highlights:** Timed mental arithmetic training, Estimation and comparison challenges, Multiple arithmetic operations, Graded sessions with time penalties, Real exam data for comparison training, Light and dark mode support

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

**In-app purchases:** none


### PSAT/NCS 기초연산 트레이닝

[App page](https://appshunter.io/ios/app/psatncs/id6752115080)

Prepare systematically for PSAT/NCS exams with this app. Master basic calculations and real past exam problems to improve data interpretation and applied math skills through step-by-step training and performance analysis.

**Highlights:** 16 basic calculation problem types, Step-by-step difficulty adjustment, Practice with past PSAT/NCS questions, Detailed problem explanations, Performance analysis and skill diagnosis, Tablet and pen support for note-taking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고제거 | $1.99 | per month |
| PREMIUM | $3.99 | per month |


## Frequently asked questions

### Is Calculation Training free?

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

### Is PSAT/NCS 기초연산 트레이닝 free?

PSAT/NCS 기초연산 트레이닝 is free to download, with in-app purchases available.

### Do Calculation Training or PSAT/NCS 기초연산 트레이닝 have ads?

Neither Calculation Training nor PSAT/NCS 기초연산 트레이닝 shows ads.

### Which is updated more often, Calculation Training or PSAT/NCS 기초연산 트레이닝?

Calculation Training ships an update every 10 days, and PSAT/NCS 기초연산 트레이닝 every 3 days. Most recently, Calculation Training was updated on October 13, 2026 and PSAT/NCS 기초연산 트레이닝 on October 1, 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.*