Rank history
HamStudy.org — Signal Stuff is currently performing at its all-time peak in the United States, holding #8 on the Top Paid chart and #8 on the Top New chart in Education, both up one position — matching the app's all-time best rank of #8 reached on 2026-06-17. Over the last 30 days the app has been remarkably consistent, with a best and roughly average position around #8–#9, indicating a strong and stable trajectory rather than a spike. In smaller markets, visibility is more modest and flat: #66 in the Cayman Islands Top Paid and #81 in the British Virgin Islands Top Paid, both unchanged. Overall, the app is climbing in its primary U.S. market while holding steady elsewhere, signaling a healthy upward momentum in Education.