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App ranking history

Theory Lessons

musictheory.net

Open on App Store View selected market →
App ID
493157418
First seen
2026-05-25
Last observed
2026-09-15
Publication
Research-ready

Market trend

United States · Top Paid Apps

Research-ready series How to read this page →
Observed days1229 Final snapshots in window
Best rank#77selected window
Average rank#85.5observed days only
Verified streak1 days0 missing days

Daily states

Ranked, absent, missing, or outside coverage.

30 Market Days
Market DayStateRankCoverageCapturedEvidence
2026-09-16 ranked #85 Top 100 · complete Snapshot
2026-09-15 ranked #77 Top 100 · complete Snapshot
2026-09-14 not-observed — Top 100 · complete Snapshot
2026-09-13 not-observed — Top 100 · complete Snapshot
2026-09-12 not-observed — Top 100 · complete Snapshot
2026-09-11 not-observed — Top 100 · complete Snapshot
2026-09-10 not-observed — Top 100 · complete Snapshot
2026-09-09 not-observed — Top 100 · complete Snapshot
2026-09-08 not-observed — Top 100 · complete Snapshot
2026-09-07 ranked #96 Top 100 · complete Snapshot
2026-09-06 not-observed — Top 100 · complete Snapshot
2026-09-05 ranked #82 Top 100 · complete Snapshot
2026-09-04 ranked #86 Top 100 · complete Snapshot
2026-09-03 ranked #78 Top 100 · complete Snapshot
2026-09-02 ranked #85 Top 100 · complete Snapshot
2026-09-01 ranked #82 Top 100 · complete Snapshot
2026-08-31 ranked #82 Top 100 · complete Snapshot
2026-08-30 ranked #85 Top 100 · complete Snapshot
2026-08-29 ranked #82 Top 100 · complete Snapshot
2026-08-28 not-observed — Top 100 · complete Snapshot
2026-08-27 not-observed — Top 100 · complete Snapshot
2026-08-26 not-observed — Top 100 · complete Snapshot
2026-08-25 not-observed — Top 100 · complete Snapshot
2026-08-24 not-observed — Top 100 · complete Snapshot
2026-08-23 ranked #91 Top 100 · complete Snapshot
2026-08-22 not-observed — Top 100 · complete Snapshot
2026-08-21 not-observed — Top 100 · complete Snapshot
2026-08-20 not-observed — Top 100 · complete Snapshot
2026-08-19 ranked #100 Top 100 · complete Snapshot
2026-08-18 not-observed — Top 100 · complete Snapshot

Global Overview

One App across every tracked market.

Current status and historical depth are shown separately. A missing observation is never converted into an estimated rank.

Markets observed88 ranked · 28 queryable series
Ranked now1latest selected snapshots
Best current rank#85across tracked markets
Best recorded rank#20permanent archive
United States · Top Paid 49 Final days · 17 observed #85 India · Top Paid 114 Final days · 21 observed Not observed · Top 100 Canada · Top Paid 79 Final days · 8 observed Not observed · Top 100 France · Top Paid 87 Final days · 1 observed Not observed · Top 100 Brazil · Top Paid 59 Final days · 1 observed Not observed · Top 100 Indonesia · Top Paid 36 Final days · 1 observed Not observed · Top 99 Mexico · Top Paid 40 Final days · 1 observed Not observed · Top 100 Australia · Top Paid 44 Final days · 2 observed Not observed · Top 100 Australia · Top Free 122 Final days · 0 observed Not observed · Top 100 Brazil · Top Free 122 Final days · 0 observed Not observed · Top 100 Canada · Top Free 122 Final days · 0 observed Not observed · Top 100 Germany · Top Free 122 Final days · 0 observed Not observed · Top 100 Germany · Top Paid 122 Final days · 0 observed Not observed · Top 99 Spain · Top Free 122 Final days · 0 observed Not observed · Top 100 Spain · Top Paid 122 Final days · 0 observed Not observed · Top 98 France · Top Free 122 Final days · 0 observed Not observed · Top 100 United Kingdom · Top Free 122 Final days · 0 observed Not observed · Top 100 United Kingdom · Top Paid 122 Final days · 0 observed Not observed · Top 97 Indonesia · Top Free 122 Final days · 0 observed Not observed · Top 100 India · Top Free 122 Final days · 0 observed Not observed · Top 100 Italy · Top Free 122 Final days · 0 observed Not observed · Top 100 Italy · Top Paid 122 Final days · 0 observed Not observed · Top 100 Japan · Top Free 122 Final days · 0 observed Not observed · Top 100 Japan · Top Paid 122 Final days · 0 observed Not observed · Top 99 South Korea · Top Free 122 Final days · 0 observed Not observed · Top 100 South Korea · Top Paid 122 Final days · 0 observed Not observed · Top 100 Mexico · Top Free 121 Final days · 0 observed Not observed · Top 100 United States · Top Free 122 Final days · 0 observed Not observed · Top 100