ProLedger

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Apps: 23

Total installs: 13K

Latest release: Jun 1, 2026

How this developer operates

Carrier title Study Microbiology holds 15% of the developer's installs
Hit rate 0% of launches reach 100k installs (0 of 22 at least 30 days old)
Release rhythm a new app every ~92 days on average
Maintenance 23 of 23 apps updated in the last 90 days · last update 22 days ago · updates every ~35 days

Same company, other accounts · Rinrin Rostika Dewi, SE

Developer names that share this developer's legal name, contact e-mail or website in the store.

Balita dan Bunda 29 · 886K Pondok Salam Persada 14 · 15K LearnSphere Labs 24 · 8.5K

Listings that changed hands

App	Direction	Counterparty	When
Study Writing	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study World History	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study US History	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Statistics	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Sociology	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Psychology	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Political Science	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Physics	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Microbiology	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Marketing	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Management	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Finance	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Economics	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Communications	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Chemistry	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Calculus	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Business	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Biology	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Anatomy and Physiology	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Algebra	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Study Accounting	renamed	LearnSphere Learning Ecosystem	Oct 17, 2026
Learn Writing	renamed	LearnSphere Labs	Oct 16, 2026
Learn World History	renamed	LearnSphere Labs	Oct 16, 2026
Learn US History	renamed	LearnSphere Labs	Oct 16, 2026
Learn Sociology	renamed	LearnSphere Labs	Oct 16, 2026
Learn Psychology	renamed	LearnSphere Labs	Oct 16, 2026
Learn Political Science	renamed	LearnSphere Labs	Oct 16, 2026
Learn Physics	renamed	LearnSphere Labs	Oct 16, 2026
Learn Microbiology	renamed	LearnSphere Labs	Oct 16, 2026
Learn Marketing	renamed	LearnSphere Labs	Oct 16, 2026
Learn Management	renamed	LearnSphere Labs	Oct 16, 2026
Learn Finance	renamed	LearnSphere Labs	Oct 16, 2026
Learn Economics	renamed	LearnSphere Labs	Oct 16, 2026
Learn Communications	renamed	LearnSphere Labs	Oct 16, 2026
Learn Chemistry	renamed	LearnSphere Labs	Oct 16, 2026
Learn Calculus	renamed	LearnSphere Labs	Oct 16, 2026
Learn Business	renamed	LearnSphere Labs	Oct 16, 2026
Learn Biology	renamed	LearnSphere Labs	Oct 16, 2026
Learn Art History	renamed	LearnSphere Labs	Oct 16, 2026
Learn Anatomy and Physiology	renamed	LearnSphere Labs	Oct 16, 2026

All apps

App	Style	Rating	Installs	Released
Study Microbiology	Books & Reference	—	1,000+	May 23, 2021
Study Anatomy and Physiology	Books & Reference	—	1,000+	Feb 20, 2021
Study Economics	Books & Reference	—	1,000+	Apr 14, 2021
Study Political Science	Books & Reference	—	1,000+	Jun 17, 2021
Study Psychology	Books & Reference	—	1,000+	Jun 17, 2021
Study Calculus	Books & Reference	—	500+	Apr 9, 2021
Study Sociology	Books & Reference	—	500+	Oct 4, 2021
Study Physics	Books & Reference	—	500+	Oct 4, 2021
Study Statistics	Books & Reference	—	500+	Oct 4, 2021
Study Algebra	Books & Reference	—	100+	Feb 20, 2021
Study World History	Books & Reference	—	100+	Jun 27, 2021
Study Biology	Books & Reference	—	100+	Oct 3, 2021
Study Chemistry	Books & Reference	—	100+	Apr 9, 2021
Study Accounting	Books & Reference	—	100+	Feb 19, 2021
Study Business	Books & Reference	—	100+	Apr 9, 2021
Study Marketing	Books & Reference	—	100+	May 20, 2021
Study Writing	Books & Reference	—	100+	Jun 27, 2021
Study Finance	Books & Reference	—	50+	Apr 14, 2021
Study US History	Books & Reference	—	50+	Jun 20, 2021
Study Communications	Books & Reference	—	50+	Apr 13, 2021
Study Management	Books & Reference	—	50+	Apr 14, 2021
ProLedger	Books & Reference	—	1+	Jun 1, 2026
ProLedger Library	Books & Reference	—	0+	—