🏆Among Health & Fitness apps bottom 0% by installs gained this week (334 peers growing)
🛠Updatesquiet · updated 98 days ago
Installs since launch
0 installs
since Oct 9
Update history
1.0.62Aug 4, 2026 · seen Oct 18, 2026
Only the current version so far — new entries appear as the app ships updates.
Viktor Schiller is a health & fitness app by Happy Electronics, s.r.o. with 100+ downloads (about 316 estimated). Released Mar 5, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “Application for HRV measurement”