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📅 Development History

GENKI Conjugation Cards

by The Japan Times Publishing, Ltd. · Utilities · View full /p/ profile →

📊 Tracking summary

Tracked since
2015-04-28
23 snapshots captured
Events detected
10
cause-and-effect changes
App Store rating
2.75★
20 ratings from App Store
Current revenue
$10.8K /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 21 2015-04-28 2026-08-19 📦 🔧 💲 💲 📈 📈 🚀 🚀

📅 What Worked™ · full timeline (10 events)

Every detected change in GENKI Conjugation Cards 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.

2026-06
📦
Bundle ↑ 103MB → 140MB — likely major code refresh
→ 30 days after: rating −0.08★ high confidence
2026-05
🔧
Shipped update — v3.2 → v4.0
→ 30 days after:
2026-05
💲
Price ↑ $5.99 → $6.99 (+17%)
→ 30 days after:
2026-03
💲
Went paid — introduced $5.99 price point
→ 30 days after:
2019-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after:
2019-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$1.1K/mo · rating −0.27★ medium confidence
2016-06
Rating ↓ 4.25 → 3.60 (dropped 0.65★)
→ 30 days after:
2016-02
Rating ↓ 5.00 → 4.33 (dropped 0.67★)
→ 30 days after: revenue +$613/mo · rating −0.08★ high confidence
2015-04
🚀
First tracked snapshot — initial data captured
→ 30 days after:
2015-04
🚀
First tracked snapshot — initial data captured
→ 30 days after:

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