Disclaimer: Independent educational project. Not affiliated with JPMorgan Chase. Built by Kaushal Khodifad. Data from public sources; figures are estimates.return to portfolio
Disclaimer: Independent educational project. Not affiliated with JPMorgan Chase.
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Data product · Engagement · App Store / Play

Cardmember Voice-of-Customer

A curated review corpus that mines the negative tail across 10M+ ratings to catch regressions in hours - curation is the moat that stops GenAI hallucinating on raw reviews.

4.8 / ~9.3Mverified
Apple App Store rating / ratings (v4.759, updated Jun 19 2026)
4.6 / ~1.8Mverified
Google Play store-displayed rating / written reviews (lifetime avg ~4.39, 50M+ downloads)
10M+ / ~63Mverified
combined ratings / active mobile users
#1verified
national bank, J.D. Power 2026 US Mobile Banking App Satisfaction Study
The problem

A 4.6-4.8 headline rating hides the signal. The opportunity is mining the negative tail across 10M+ reviews to catch regressions in hours, not at the next review cycle.

The data-product gap

Raw reviews are unstructured, spam-laden, PII-bearing, and un-themed. GenAI on raw reviews hallucinates - curation is the moat.

The solution - on the platform

  1. 01

    Daily ingest: App Store Connect API + Play Console + AppFollow, with version / OS / locale metadata.

  2. 02

    Curate: dedup, spam/bot filter, PII scrub, language normalize.

  3. 03

    GenAI on the curated corpus: theme/aspect extraction into the taxonomy, sentiment + severity, emerging-issue spike detection, release-note correlation, auto exec digest + suggested JIRA.

  4. 04

    Route: fraud-hold false-positives→risk-ops; login/OS-gate spike→release eng; Zelle-lock→payments+comms; positive feature mentions→growth.

  5. 05

    Card-scoped variant (Pay Over Time, Offers, rewards redemption, fraud holds) becomes a cardmember-engagement instrument.

App Store / Play / AppFollow ingestSpam + PII curationGenAI theme + spike detectionRelease-note correlationAuto-routing to owning teams
Caveat to print

Apple 9.3M is ratings, not all written reviews. Both the Play headline 4.6 and lifetime ~4.39 are cited. Theme verbatims are representative recurring clusters, not statistically weighted. Collected 2026-06-27.

Success scorecard

Leading
  • Time-to-detect regression (hours)
  • % auto-tagged
  • Theme-tag precision/recall vs human holdout
Product
  • Negative-theme volume per 10k reviews release-over-release
  • Contact deflection
Rating / business
  • Sustain 4.8 Apple / ≥4.6 Play
  • Defend J.D. Power #1
  • Engagement lift in resolved cohorts
Closed-loop
  • 'You asked, we shipped' rate

Sources & methodology

Real · live Public-sourced · cited Synthetic · illustrative
  • 01
  • 02
  • 03
Synthetic dataFictional partnerIllustrative metricsGrounded-inference topology

↑ Independent educational project by Kaushal Khodifad. JPMorgan Chase is a real company in the card data & analytics space; this design and the underlying prototype were built by Kaushal as a portfolio study. Not affiliated with, endorsed by, or representative of JPMorgan Chase's actual product. Data is from public sources. Figures are estimates.

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