# Calculation Training vs 데일리 PSAT

The clearest difference is in-app purchases: Calculation Training at none against 데일리 PSAT's 1. 데일리 PSAT's advantage is update cadence (every 4 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 데일리 PSAT sells 1 one-off in-app purchase. Calculation Training asks for nothing beyond the download.

Calculation Training ships an update every 10 days, 데일리 PSAT every 4 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Calculation Training | 데일리 PSAT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 3 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JinWook You](https://appshunter.io/developer/1837824846) | [woosik choi](https://appshunter.io/developer/1845521022) |

## 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


### 데일리 PSAT

[App page](https://appshunter.io/ios/app/psat/id6781955472)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 전체 해체 | $17.99 | one-time |


## Frequently asked questions

### Is Calculation Training free?

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

### Is 데일리 PSAT free?

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

### Do Calculation Training or 데일리 PSAT have ads?

Neither Calculation Training nor 데일리 PSAT shows ads.

### Which is updated more often, Calculation Training or 데일리 PSAT?

Calculation Training ships an update every 10 days, and 데일리 PSAT every 4 days. Most recently, Calculation Training was updated on October 13, 2026 and 데일리 PSAT 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.*