# Calculator Lock: Secret Vault

> 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/calculator-lock-secret-vault

- Package: `ac.calcvault.applock`
- Developer: App Craze
- Category: Tools
- Platform: Android (Google Play)
- Released: Jul 4, 2025
- Lifetime downloads: 696,714 (updated 2026-09-21)
- What the store shows instead: 500,000+
- Rating: 4.75 from 3,365 ratings
- Downloads added: none — the counter held between 2026-09-20 and 2026-09-21
- Readings kept: 45 (2026-08-05 → 2026-09-21)
- Chart positions on 2026-09-21 (Top Free): #25 TL, #46 CU, #53 LK, #73 TJ, #82 SD, #88 TM, #121 PK, #135 MG (best 8 shown) — charts in 10 of 203 markets scanned

### Latest readings

| Date (UTC) | Lifetime downloads | Added |
|---|---:|---:|
| 2026-09-15 | 670,702 | — |
| 2026-09-16 | 670,702 | held |
| 2026-09-17 | 670,702 | held |
| 2026-09-18 | 696,714 | +26,012 |
| 2026-09-19 | 696,714 | held |
| 2026-09-20 | 696,714 | held |
| 2026-09-21 | 696,714 | held |

"held" means Google's own counter showed the same figure as the day before — it is a real reading, not a missed one.

Showing the latest 7 of 45 readings. Signed-in followers see the full curve from the day they followed.

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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.