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📅 Development History

Periodic Timer +

by Vladimir Kelin · Health & Fitness · View full /p/ profile →

📊 Tracking summary

Tracked since
2017-05-27
64 snapshots captured
Events detected
11
cause-and-effect changes
App Store rating
3.84★
74 ratings from App Store
Current revenue
$459 /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.

1 74 2017-05-27 2026-09-04 📦 🔧 💲 📈 📈 🚀

📅 What Worked™ · full timeline (11 events)

Every detected change in Periodic Timer + 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.

2026-09
📦
Bundle ↑ 9MB → 13MB — likely major code refresh
→ 30 days after:
2026-08
🔧
Shipped update — v4.5 → v4.7
→ 30 days after:
2026-05
Rating ↓ 4.40 → 3.85 (dropped 0.55★)
→ 30 days after:
2026-05
💲
Went paid — introduced $4.99 price point
→ 30 days after:
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after:
2026-03
Rating ↑ 3.26 → 4.40 (improved 1.14★)
→ 30 days after:
2019-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.24★ medium confidence
2019-04
Rating ↑ 2.00 → 2.43 (improved 0.43★)
→ 30 days after: rating +0.11★ medium confidence
2018-03
Rating ↑ 1.50 → 1.80 (improved 0.30★)
→ 30 days after:
2018-03
Rating ↑ 1.00 → 1.50 (improved 0.50★)
→ 30 days after: rating +0.80★ low confidence
2017-05
🚀
First tracked snapshot — initial data captured
→ 30 days after:

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