2026-05
⭐
Rating ↑ 4.10 → 4.50 (improved 0.40★)
→ 30 days after:
📊 Tracking summary
Tracked since
2016-10-12
Events detected
14
Current rating
4.52★
Current revenue
$8.5K
/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 (14 events)
Every detected change in PhET Simulations 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
💲
Went paid — introduced $0.99 price point
→ 30 days after:
2019-12
⭐
Rating ↑ 3.14 → 3.74 (improved 0.60★)
→ 30 days after:
revenue +$341/mo
high confidence
2017-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$196/mo · rating +0.14★
high confidence
2017-02
⭐
Rating ↑ 2.14 → 3.00 (improved 0.86★)
→ 30 days after:
revenue +$196/mo · rating +0.14★
high confidence
2017-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
revenue +$1.3K/mo · rating +1.00★ · reviews +7
medium confidence
2017-02
⭐
Rating ↑ 2.14 → 2.50 (improved 0.36★)
→ 30 days after:
revenue +$1.3K/mo · rating +1.00★ · reviews +7
medium confidence
2016-11
⭐
Rating ↓ 3.00 → 2.33 (dropped 0.67★)
→ 30 days after:
revenue +$142/mo · rating −0.19★
high confidence
2016-11
⭐
Rating ↓ 3.00 → 2.60 (dropped 0.40★)
→ 30 days after:
revenue +$285/mo · rating −0.67★
high confidence
2016-10
⭐
Rating ↑ 2.33 → 3.00 (improved 0.67★)
→ 30 days after:
revenue +$285/mo · rating −0.67★
low confidence
2016-10
🚀
First tracked snapshot — initial data captured
→ 30 days after:
revenue +$285/mo · rating −0.67★
low confidence
2016-10
⭐
Rating ↓ 3.00 → 2.33 (dropped 0.67★)
→ 30 days after:
revenue +$285/mo · rating −0.67★
low confidence
2016-10
🚀
First tracked snapshot — initial data captured
→ 30 days after:
revenue +$285/mo · rating −0.67★
low confidence
2016-10
⭐
Rating ↓ 5.00 → 3.00 (dropped 2.00★)
→ 30 days after:
revenue +$285/mo · rating −0.67★
low confidence
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