# Simple Easy Calc Lite vs O`haitai

The clearest difference is ads: O`haitai at none against Simple Easy Calc Lite's shown. O`haitai also leads on update cadence (every 5 weeks vs every 38 months) and iOS requirement (8.0 vs 15.0). On price, 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.

Simple Easy Calc Lite ships an update every 38 months, O`haitai every 5 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Simple Easy Calc Lite | O`haitai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 38 months | **Every 5 weeks** |
| Size | 15 MB | 16 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Suzuki](https://appshunter.io/developer/523026270) | [志强 童](https://appshunter.io/developer/1214909933) |

## What reviewers say

### Simple Easy Calc Lite

[App page](https://appshunter.io/ios/app/simple-easy-calc-lite/id1238057808)

**Features:** macOS Compatibility

**In-app purchases:** none


### O`haitai

[App page](https://appshunter.io/ios/app/ohaitai/id1481321273)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Easy Calc Lite free?

Simple Easy Calc Lite is free to download, with no in-app purchases.

### Is O`haitai free?

O`haitai is free to download, with no in-app purchases.

### Do Simple Easy Calc Lite or O`haitai have ads?

Simple Easy Calc Lite shows ads; O`haitai does not.

### Which is updated more often, Simple Easy Calc Lite or O`haitai?

Simple Easy Calc Lite ships an update every 38 months, and O`haitai every 5 weeks. Most recently, Simple Easy Calc Lite was updated on November 11, 2026 and O`haitai on November 3, 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.*