# Chemistry PRO: Periodic Table

> 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/chemistry-pro-periodic-table

- Package: `calculation.world.chemistry_periodictablepro`
- Developer: Calculation World
- Category: Education
- Platform: Android (Google Play)
- Released: Oct 1, 2022
- Lifetime downloads: 140 (updated 2026-08-09)
- What the store shows instead: 100+
- Rating: not published on the listing
- Downloads added: 2 on 2026-08-09
- Readings kept: 2 (2026-08-08 → 2026-08-09)

### Latest readings

| Date (UTC) | Lifetime downloads | Added |
|---|---:|---:|
| 2026-08-08 | 138 | — |
| 2026-08-09 | 140 | +2 |

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Site last completed a reading on 2026-09-21. AppCurves is not real-time.
When citing, include the reading date. https://appcurves.com/faq answers where the figure comes from.