2026-07
🔧
Shipped update — v13.0.1 → v13.1.0
→ 30 days after:
📊 Tracking summary
Tracked since
2015-11-30
Events detected
16
Current rating
4.01★
Current revenue
$11.1K
/mo
📈 Reviews growth with event markers
Cumulative review count over time. Each marker (🚀⭐💲🔄🔧📈📊📦) is a detected event — click anything in the timeline below to scroll to its row.
📅 What Worked™ · full timeline (16 events)
Every detected change in 得到-课程听书电子书 since we started tracking. Each event shows the cause (what changed) and effect (measured impact over 30 days after). Confidence chip flags whether the attribution is clean or muddied by co-occurring events.
2026-05
🔧
Shipped update — v12.23.1 → v13.0.1
→ 30 days after:
2026-05
🔄
Monetization changed: paid → free
→ 30 days after:
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
→ 30 days after:
2026-03
⭐
Rating ↑ 2.99 → 4.09 (improved 1.10★)
→ 30 days after:
2017-12
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$51/mo
high confidence
2017-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$158/mo · rating +0.14★ · reviews +8
medium confidence
2017-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$344/mo · rating +0.17★ · reviews +18
low confidence
2016-02
⭐
Rating ↑ 2.23 → 2.71 (improved 0.48★)
→ 30 days after:
revenue +$54/mo
medium confidence
2016-01
⭐
Rating ↑ 1.50 → 2.23 (improved 0.73★)
→ 30 days after:
revenue +$79/mo · rating +0.48★
high confidence
2016-01
⭐
Rating ↑ 1.50 → 1.82 (improved 0.32★)
→ 30 days after:
revenue +$61/mo · rating +0.73★
high confidence
2015-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$172/mo · rating +0.56★ · reviews +10
low confidence
2015-12
⭐
Rating ↑ 1.67 → 2.00 (improved 0.33★)
→ 30 days after:
revenue +$110/mo · rating −0.17★ · reviews +7
low confidence
2015-11
🚀
First tracked snapshot — initial data captured
→ 30 days after:
revenue +$110/mo · rating −0.17★ · reviews +7
low confidence
2015-11
⭐
Rating ↓ 2.00 → 1.67 (dropped 0.33★)
→ 30 days after:
revenue +$110/mo · rating −0.17★ · reviews +7
low confidence
2015-11
🚀
First tracked snapshot — initial data captured
→ 30 days after:
revenue +$110/mo · rating −0.17★ · reviews +7
medium confidence
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