8BitDo Ultimate Software vs K.O. II Calc.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
8BitDo Ultimate Software
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.
- Button mapping customization
- Stick and trigger sensitivity adjustment
- Vibration power control
- Macro creation
- Controller compatibility management
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8BitDo Ultimate Software gives you elite control over every piece of your controller: customize button mapping, adjust stick & trigger sensitivity, vibration power control and create macros. Controller Compatibility: * 8BitDo Pro 2 Bluetooth Controller * 8BitDo Pro 2 Wired Controller for Xbox * 8BitDo Ultimate Wired Controller for Xbox * 8BitDo Ultimate Bluetooth Controller * 8BitDo Micro Gamepad * 8BitDo Ultimate 3-mode Controller for Xbox Please visit support.8bitdo.com for further information and additional support.
K.O. II Calc.
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Calculator with the look and feel of Teenage Engineering’s K.O. II
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | 8BitDo Ultimate Software | K.O. II Calc. |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (197 ratings) — better | — |
| Positive reviews | 26.4% of reviews | — |
| Number of ratings | 197 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 167 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 8BitDo | Jesus Evert Corral Pedraza |
Bugs and requests
8BitDo Ultimate Software
Reported bugs
4 issues- App unable to detect connected controllers
- Key mapping not working as expected
- Profiles resetting after app restart
- Firmware update issues bricking controllers
Requested features
5 requests- 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.
Not enough reviews yet to summarise bugs or requests.
In-app purchases
8BitDo Ultimate Software
No in-app purchases
K.O. II Calc.
- Espresso coffee$1.99
- Cappuccino coffee$2.99
Questions
Is 8BitDo Ultimate Software free?
Is K.O. II Calc. free?
Do 8BitDo Ultimate Software or K.O. II Calc. have ads?
Which is updated more often, 8BitDo Ultimate Software or K.O. II Calc.?
Other comparisons
