# Tandem: Language exchange

> 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/tandem

- Package: `net.tandem`
- Developer: Tripod Technology GmbH
- Category: Education
- Platform: Android (Google Play)
- Released: Sep 13, 2016
- Lifetime downloads: 21,488,629 (updated 2026-09-21)
- What the store shows instead: 10,000,000+
- Rating: 4.07 from 415,094 ratings
- Downloads added: none — the counter held between 2026-09-20 and 2026-09-21
- Readings kept: 49 (2026-08-04 → 2026-09-21)
- Chart positions on 2026-09-21 (Top Free): #22 IR, #34 HK, #37 CU, #58 TZ, #59 KE, #65 KG, #65 RU, #66 HT (best 8 shown) — charts in 83 of 203 markets scanned

### Latest readings

| Date (UTC) | Lifetime downloads | Added |
|---|---:|---:|
| 2026-09-15 | 21,452,005 | — |
| 2026-09-16 | 21,488,629 | +36,624 |
| 2026-09-17 | 21,488,629 | held |
| 2026-09-18 | 21,488,629 | held |
| 2026-09-19 | 21,488,629 | held |
| 2026-09-20 | 21,488,629 | held |
| 2026-09-21 | 21,488,629 | held |

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

Showing the latest 7 of 49 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.