# addition calc vs Basic Countdown Timer

The clearest difference is update cadence: addition calc at monthly against Basic Countdown Timer's every 24 months. addition calc also leads on iOS requirement (9.3 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

addition calc ships an update monthly, Basic Countdown Timer every 24 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | addition calc | Basic Countdown Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 24 months |
| Monetization | Free | — |
| Size | 13 MB | 6 MB |
| Requires iOS | **9.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shozo Obayashi](https://appshunter.io/developer/1453986142) | [Thomas Donohue](https://appshunter.io/developer/1768954344) |

## What reviewers say

### addition calc

[App page](https://appshunter.io/ios/app/addition-calc/id1453986143)

This calculator app clearly displays inputs and sums on separate rows for easy understanding. Perform basic arithmetic operations with large, accessible buttons. Customize decimal places and rounding for precise calculations.

**Highlights:** Separate input and sum display, Large buttons for easy input, Supports four input operations, Customizable decimal places, Adjustable rounding settings, Optional vibration feedback

**Features:** macOS Compatibility

**In-app purchases:** none


### Basic Countdown Timer

[App page](https://appshunter.io/ios/app/basic-countdown-timer/id6692619076)

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

**In-app purchases:** none


## Frequently asked questions

### Is addition calc free?

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

### Is Basic Countdown Timer free?

Basic Countdown Timer is free to download, with no in-app purchases.

### Do addition calc or Basic Countdown Timer have ads?

Neither addition calc nor Basic Countdown Timer shows ads.

### Which is updated more often, addition calc or Basic Countdown Timer?

addition calc ships an update monthly, and Basic Countdown Timer every 24 months. Most recently, addition calc was updated on October 11, 2026 and Basic Countdown Timer on October 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.*