# けいさんや 日常計算集 vs PharCalc

The clearest difference is in-app purchases: けいさんや 日常計算集 at none against PharCalc's 1. けいさんや 日常計算集 also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PharCalc sells 1 one-off in-app purchase. けいさんや 日常計算集 asks for nothing beyond the download.

けいさんや 日常計算集 ships an update every 3 weeks, PharCalc monthly. Both last shipped on October 10, 2026.

## The numbers

| Metric | けいさんや 日常計算集 | PharCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 26 MB | 43 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [oka yamazaki](https://appshunter.io/developer/1152231583) | [Koya Kurauchi](https://appshunter.io/developer/1887146796) |

## What reviewers say

### けいさんや 日常計算集

[App page](https://appshunter.io/ios/app/id1492215482)

**Features:** macOS Compatibility

**In-app purchases:** none


### PharCalc

[App page](https://appshunter.io/ios/app/pharcalc/id6760984463)

This all-in-one tool helps pharmacists and pharmacy students with calculations, drug comparisons, and reference information for daily practice and national exam preparation. It covers prescription fee simulations, clinical dose calculations, and essential reference data.

**Highlights:** Prescription fee simulation, Clinical dose calculations, Drug comparison and conversion, Reference data lookup, Exam and practical training support, Dosing for pediatrics and opioids

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示（買い切り） | $3.99 | one-time |


## Frequently asked questions

### Is けいさんや 日常計算集 free?

けいさんや 日常計算集 is free to download, with no in-app purchases.

### Is PharCalc free?

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

### Do けいさんや 日常計算集 or PharCalc have ads?

Both けいさんや 日常計算集 and PharCalc show ads.

### Which is updated more often, けいさんや 日常計算集 or PharCalc?

けいさんや 日常計算集 ships an update every 3 weeks, and PharCalc monthly. Most recently, けいさんや 日常計算集 was updated on October 10, 2026 and PharCalc on October 10, 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.*