Microphone Amplifier vs Spaced Retrieval Therapy
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$1.5M–$6.1M
$4k–$15k
Downloads / mo
500k–2.1M
500–2k
Rating
★ 4.38 (65k)
★ 0.00 (—)
Pricing
Free + IAP
Paid $9.99
Category
Medical
Medical
Released
6.8y ago
8.6y ago
Verdict: Microphone Amplifier earns more — an estimated $1.5M–$6.1M/mo, versus $4k–$15k/mo for Spaced Retrieval Therapy.