Sora, by OverDrive Education — full revenue & growth history

📊 Tracking summary

Tracked since

2018-07-24

118 snapshots captured

Events detected

cause-and-effect changes

Current rating

3.81★

549 reviews

Current revenue

$9.8K /mo

ML forecast or verified

📈 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 Sora, by OverDrive Education 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 — v9.2.2 → v9.2.3

→ 30 days after: reviews +23 medium confidence

2026-05

📈

Crossed 500 ratings — social-proof flywheel kicking in

→ 30 days after: reviews +23 medium confidence

2026-05

⭐

Rating ↑ 3.08 → 3.81 (improved 0.73★)

→ 30 days after: reviews +23 medium confidence

2026-03

⭐

Rating ↓ 3.40 → 3.08 (dropped 0.32★)

→ 30 days after: revenue −$3.5K/mo · rating +0.41★ · reviews +35 medium confidence

2026-03

⭐

Rating ↑ 3.07 → 3.40 (improved 0.33★)

→ 30 days after: revenue +$50/mo high confidence

2026-03

📈

Crossed 500 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$50/mo high confidence

2020-06

📈

Crossed 100 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$154/mo · reviews +6 high confidence

2020-06

📈

Crossed 100 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$328/mo · rating −0.08★ · reviews +14 high confidence

2019-09

📈

Crossed 50 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$84/mo · rating +0.08★ high confidence

2018-09

⭐

Rating ↓ 2.67 → 2.00 (dropped 0.67★)

→ 30 days after: revenue +$119/mo · rating +0.20★ high confidence

2018-09

📈

Crossed 10 ratings — social-proof flywheel kicking in

→ 30 days after: revenue +$119/mo · rating +0.20★ high confidence

2018-08

⭐

Rating ↓ 3.00 → 2.67 (dropped 0.33★)

→ 30 days after: revenue +$80/mo · rating −0.67★ medium confidence

2018-08

⭐

Rating ↓ 3.33 → 2.75 (dropped 0.58★)

→ 30 days after: revenue +$204/mo · rating +1.00★ · reviews +9 low confidence

2018-08

⭐

Rating ↑ 3.00 → 3.33 (improved 0.33★)

→ 30 days after: revenue +$204/mo · rating +1.00★ · reviews +9 low confidence

2018-08

⭐

Rating ↑ 1.00 → 3.00 (improved 2.00★)

→ 30 days after: revenue +$204/mo · rating +1.00★ · reviews +9 medium confidence

2018-07

🚀

First tracked snapshot — initial data captured

→ 30 days after: revenue +$124/mo · rating +1.67★ high confidence

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