# AddCalculator vs EITC Korea Guide

The clearest difference is update cadence: AddCalculator at every 5 days against EITC Korea Guide's every 9 months. EITC Korea Guide's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AddCalculator ships an update every 5 days, EITC Korea Guide every 9 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AddCalculator | EITC Korea Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eitc-korea-guide/id6758206561/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 9 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 6 MB | 40 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Minseong Kim](https://appshunter.io/developer/1707019155) | [hyunsu seo](https://appshunter.io/developer/1709786583) |

## What reviewers say

### AddCalculator

[App page](https://appshunter.io/ios/app/addcalculator/id6466179281)

This utility automatically sums numbers as you input them, streamlining quick calculations. Create custom buttons for frequently used values and review your calculation history. It offers undo/redo functionality and supports two color themes for a personalized experience.

**Highlights:** Automatic addition on number press, Customizable number buttons, Calculation history log, Undo and redo functionality, Dual color mode support

**Features:** macOS Compatibility

**In-app purchases:** none


### EITC Korea Guide

[App page](https://appshunter.io/ios/app/eitc-korea-guide/id6758206561)

This app provides a straightforward guide to South Korea's earned income tax credit and child tax credit. It helps users determine eligibility, understand application processes, and track payment schedules. The content is presented in Korean.

**Highlights:** Eligibility criteria (income, household, property), Application deadlines and schedules, Step-by-step application instructions, Payment review and schedule, Reasons for rejection, Child tax credit information

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

**In-app purchases:** none


## Frequently asked questions

### Is AddCalculator free?

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

### Is EITC Korea Guide free?

EITC Korea Guide is free to download, with no in-app purchases.

### Do AddCalculator or EITC Korea Guide have ads?

Both AddCalculator and EITC Korea Guide show ads.

### Which is updated more often, AddCalculator or EITC Korea Guide?

AddCalculator ships an update every 5 days, and EITC Korea Guide every 9 months. Most recently, AddCalculator was updated on November 3, 2026 and EITC Korea Guide 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.*