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📅 Development History

AO Surgery Reference

by AO Foundation · Education · View full /p/ profile →

📊 Tracking summary

Tracked since
2010-11-23
18 snapshots captured
Events detected
6
cause-and-effect changes
App Store rating
4.43★
14 ratings from App Store
Current revenue
$86 /mo
Estimated or reported monthly revenue

📈 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.

2 16 2010-11-23 2026-08-16 📈 🔄 📈 🚀 🚀

📅 What Worked™ · full timeline (6 events)

Every detected change in AO Surgery Reference 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
Rating ↓ 5.00 → 4.43 (dropped 0.57★)
→ 30 days after:
2026-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
2026-05
🔄
Monetization changed: freemium → free
→ 30 days after:
2011-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
2010-11
🚀
First tracked snapshot — initial data captured
→ 30 days after:
2010-11
🚀
First tracked snapshot — initial data captured
→ 30 days after:

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