16+ iOS apps & games curated and reviewed
Out of 16+ koya nambo apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
Easily convert between Japanese and US units for length, weight, speed, volume, temperature, area, currency, and time zones. This tool is useful for travel, daily life, work, and study, offering a wide range of conversion categories.
Enhance your arithmetic abilities with daily exercises. This application offers various modes to sharpen your calculation speed and mental math skills. Practice with randomly generated problems to keep your brain active.
Easily switch numbers between various bases, from binary to base 62. Ideal for developers, students, and math enthusiasts needing quick and reliable conversions with fractional parts. Features include instant common base conversions, custom base support, and conversion history.
Engage in a simple rule puzzle RPG where you strategically battle enemies and navigate treacherous dungeons. Collect items from treasure chests, evade pursuing monsters, and uncover a story of gods and giants to help Nike escape Tartarus.
