# 디북 - 올인원 문제집 앱

> Taken from the public Google Play listing. Every figure below carries the date it was updated.
> Nothing is modelled or estimated. A new collection starts at 00:00 UTC daily and takes several hours; an individual app's reading lands at some point inside that window.

Source page: https://appcurves.com/app/com.cjtext.drb.dbookpdf

- Package: `com.cjtext.drb.dbookpdf`
- Developer: (주)천재교과서
- Category: Education
- Platform: Android (Google Play)
- Released: date not published on the listing
- Lifetime downloads: 262,629 (updated 2026-09-05)
- What the store shows instead: 100,000+
- Rating: the listing no longer shows one (last published 3.54 on 2026-09-22)
- Downloads added: none — the counter held between 2026-09-04 and 2026-09-05
- Readings kept: 3 (2026-08-05 → 2026-09-05)

### Latest readings

| Date (UTC) | Lifetime downloads | Added |
|---|---:|---:|
| 2026-08-05 | 261,434 | — |
| 2026-09-04 | 262,629 | +1,195 over 30 days |
| 2026-09-05 | 262,629 | held |

"held" means Google's own counter showed the same figure as the day before — it is a real reading, not a missed one. A multi-day "Added" spans two real readings; the days between were not read.

---

Site last completed a reading on 2026-09-22. AppCurves is not real-time.
When citing, include the reading date. https://appcurves.com/faq answers where the figure comes from.