YIFENG JIA is an indie developer with 1 apps on the App Store. Ranked #5164 (top 57%) out of 9,002 developers on IndieRank. 0 total ratings with 0.0★ average.
How is this calculated?
IR Rate Breakdown
Review Score0
log10(0 + 1) x 300 x (0.0 / 5) — Review count x Rating quality
Update Recency0
— — Days since last update (max 300)
Portfolio40
min(1, 5) x 40 — Active app count (max 5) (max 200)
Total40
Formula:
IR Rate = log10(reviews+1) x 300 x (rating/5) + activity + portfolio