# Simple Calculator. vs デジもの手帳

The clearest difference is in-app purchases: Simple Calculator. at none against デジもの手帳's 1. Simple Calculator. also leads on device support (3 vs 1). デジもの手帳's advantage is update cadence (every 10 days vs every 3 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. デジもの手帳 sells 1 one-off in-app purchase. Simple Calculator. asks for nothing beyond the download.

Simple Calculator. ships an update every 3 months, デジもの手帳 every 10 days. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Simple Calculator. | デジもの手帳 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.6K ratings)](https://appshunter.io/ios/app/simple-calculator/id1324926551/reviews)** | — |
| Number of ratings | **1.6K** | — |
| Positive reviews | 65.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 58 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [tasser gyati](https://appshunter.io/developer/1324926550) | [takahisa eguchi](https://appshunter.io/developer/6799247807) |

## What reviewers say

### Simple Calculator.

[App page](https://appshunter.io/ios/app/simple-calculator/id1324926551)

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

**Highlights:** Real-world logic, no forced order of operations, Running total display, Cost, sell, margin calculations, Add/subtract percentages in one step, Clean, intuitive interface with large buttons, Minimal, non-intrusive ads

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Supports percentage calculations
- 🚀 Fast and responsive
- 🔒 No security issues reported

**What reviewers complain about**

- 🐛 Occasional display issues with underline artifacts
- 📢 Intrusive ads in free version
- 💰 Paid version not clearly advertised

**Reported bugs**

- Incorrect calculation results in some cases
- Ads appearing during critical usage scenarios

**Requested features**

- Add a dedicated 'C' clear button
- Provide more customization options for key layout
- Implement a history/memory function


### デジもの手帳

[App page](https://appshunter.io/ios/app/id6802090072)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無制限版 | $4.99 | one-time |


## Frequently asked questions

### Is Simple Calculator. free?

Simple Calculator. is free to download, with no in-app purchases.

### Is デジもの手帳 free?

デジもの手帳 is free to download, with in-app purchases available.

### Do Simple Calculator. or デジもの手帳 have ads?

Both Simple Calculator. and デジもの手帳 show ads.

### Which is updated more often, Simple Calculator. or デジもの手帳?

Simple Calculator. ships an update every 3 months, and デジもの手帳 every 10 days. Most recently, Simple Calculator. was updated on November 11, 2026 and デジもの手帳 on November 6, 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.*