Apps by Yasuyoshi Ota
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N'Back
Education
4.00
(3)
Free
IAP
Released Jan 2013
· updated Dec 2025
-
GP Counter
Productivity
5.00
(2)
Free
IAP?
Released Mar 2022
· updated Aug 2026
-
NBack 3D
Education
5.00
(1)
Free
IAP
Released Aug 2018
· updated Dec 2025
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Jigsaw Puzzle Maker for iPad
Entertainment
3.00
(1)
$2.99
IAP
Released Dec 2011
· updated Dec 2025
-
2 Digit Multiplication
Education
$1.99
IAP?
Released Oct 2010
· updated Oct 2025
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Amida Drawing for iPad Lite
Lifestyle
Free
IAP?
Released Jan 2012
· updated Dec 2025
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Kinetic Visual Acuity HD Lite
Sports
Free
IAP?
Released Jun 2012
· updated Oct 2025
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N'Back Fan
Education
Free
IAP?
Released May 2023
· updated Aug 2026
-
Amida Drawing for iPad
Lifestyle
$2.99
IAP?
Released Jan 2012
· updated Oct 2025
-
Fractal Catalog
Education
$2.99
IAP?
Released Aug 2020
· updated Sep 2026