# 8BitDo Ultimate Software vs K.O. II Calc.

The clearest difference is in-app purchases: 8BitDo Ultimate Software at none against K.O. II Calc.'s 2. 8BitDo Ultimate Software also leads on device support (3 vs 1) and iOS requirement (11.0 vs 18.6). K.O. II Calc.'s advantage is update cadence (monthly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. K.O. II Calc. sells 2 one-off in-app purchases. 8BitDo Ultimate Software asks for nothing beyond the download.

8BitDo Ultimate Software ships an update every 2 months, K.O. II Calc. monthly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 8BitDo Ultimate Software | K.O. II Calc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (197 ratings)](https://appshunter.io/ios/app/8bitdo-ultimate-software/id1532713768/reviews)** | — |
| Number of ratings | **197** | — |
| Positive reviews | 26.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 167 MB | 1 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [8BitDo](https://appshunter.io/developer/1532713770) | [Jesus Evert Corral Pedraza](https://appshunter.io/developer/1777466218) |

## What reviewers say

### 8BitDo Ultimate Software

[App page](https://appshunter.io/ios/app/8bitdo-ultimate-software/id1532713768)

Gain complete control over your compatible gamepad. Customize button layouts, fine-tune analog stick and trigger responses, and manage vibration intensity. Create custom macro commands for advanced gameplay.

**Highlights:** Button mapping customization, Stick and trigger sensitivity adjustment, Vibration power control, Macro creation, Controller compatibility management

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Functional app
- 💡 Helpful for left-hand device use
- 🚀 Seamless controller connection
- 🚀 Intuitive key mapping

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Inconsistent performance
- 🐛 Lack of support for certain controllers
- 🐛 Buggy firmware updates
- 🐛 Profiles not saving properly

**Reported bugs**

- App unable to detect connected controllers
- Key mapping not working as expected
- Profiles resetting after app restart
- Firmware update issues bricking controllers

**Requested features**

- Support for more controllers (e.g. 8bitdo Zero 2, SN30 Pro+)
- Add ability to remap command/option keys for macOS/iOS
- Improve macro functionality (e.g. adjustable delay, ability to hold keys)
- Add media control key mapping options
- Implement Bluetooth firmware update capability


### K.O. II Calc.

[App page](https://appshunter.io/ios/app/ko-ii-calc/id6752974851)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso coffee | $1.99 | one-time |
| Cappuccino coffee | $2.99 | one-time |


## Frequently asked questions

### Is 8BitDo Ultimate Software free?

8BitDo Ultimate Software is free to download, with no in-app purchases.

### Is K.O. II Calc. free?

K.O. II Calc. is free to download, with in-app purchases available.

### Do 8BitDo Ultimate Software or K.O. II Calc. have ads?

Neither 8BitDo Ultimate Software nor K.O. II Calc. shows ads.

### Which is updated more often, 8BitDo Ultimate Software or K.O. II Calc.?

8BitDo Ultimate Software ships an update every 2 months, and K.O. II Calc. monthly. Most recently, 8BitDo Ultimate Software was updated on October 16, 2026 and K.O. II Calc. on October 14, 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.*