Usage stats
This page reveals how are used the online library and the Windows PC application. Stats are delivered for some periods of time:
  • since beginning 2020-01-01
  • over the rolling past year, i.e. from 2025-08-26 till now
  • over the rolling past month, i.e. from 2026-07-27 till now
  • over the rolling past week, i.e. from 2026-08-19 till now
Countries rolling past year
- Albania - Algeria - Angola - Argentina - Australia - Austria - Azerbaijan - Bahamas - Bangladesh - Belgium - Bolivia - Brazil - Bulgaria - Canada - Chile - China - Colombia - Cuba - Czech Republic - Denmark - Ecuador - Estonia - Ethiopia - Europe - Finland - France - Germany - Greece - Hong Kong - Hungary - India - Indonesia - Iran, Islamic Republic of - Ireland - Israel - Italy - Japan - Jordan - Kazakhstan - Korea, Republic of - Latvia - Lebanon - Lithuania - Mexico - Morocco - Nepal - Netherlands - New Zealand - Norway - Pakistan - Palestinian Territory - Poland - Portugal - Qatar - Romania - Russian Federation - Senegal - Serbia - Singapore - Slovakia - Slovenia - South Africa - Spain - Sweden - Switzerland - Syrian Arab Republic - Taiwan - Thailand - Tunisia - Turkey - Ukraine - United Arab Emirates - United Kingdom - United States - Uruguay - Uzbekistan - Venezuela - Vietnam
Countries rolling past month
- Algeria - Argentina - Bolivia - Brazil - China - Colombia - Czech Republic - Denmark - Ethiopia - Finland - France - Germany - Hungary - Iran, Islamic Republic of - Ireland - Italy - Kazakhstan - Mexico - Morocco - Nepal - Netherlands - New Zealand - Pakistan - Poland - Qatar - Romania - Serbia - South Africa - Spain - Syrian Arab Republic - Turkey - United Arab Emirates - United Kingdom - United States - Uruguay - Vietnam
Countries rolling past week
- Bolivia - China - Colombia - Czech Republic - France - Hungary - Italy - Mexico - Morocco - Pakistan - Poland - Romania - Serbia - Spain - Syrian Arab Republic - United Kingdom - United States - Uruguay - Vietnam

Users (distinct IPs):
  • since beginning 4395
  • rolling past year 1104
  • rolling past month 110
  • rolling past week 29
Most active countries over rolling past year
(in terms of simulations, at least 500 actions):
  • Germany 3410
  • Czech Republic 2558
  • France 2542
  • Serbia 1226
  • United States 1113
  • Italy 980
  • Australia 772
  • Vietnam 661
Most active countries over rolling past month
(in terms of simulations, at least 50 actions):
  • Italy 159
  • France 156
  • Czech Republic 127
  • United States 115
  • Finland 97
  • Germany 80
Most active countries over rolling past week
(in terms of simulations, at least 50 actions):

    Most active countries over rolling past year
    (in terms of count of different users, at least 10 users):
    • United States 226
    • Vietnam 143
    • France 110
    • Germany 87
    • Australia 52
    • Italy 52
    • Serbia 45
    • United Kingdom 33
    • Netherlands 31
    • Czech Republic 23
    • China 22
    • Austria 16
    • Spain 16
    • Poland 14
    • Brazil 13
    • Hungary 12
    • Romania 12
    • Canada 11
    • Singapore 11
    • Denmark 10

    Circuit simulations over rolling past year performed from:
    • Web 9663
    • PC 8288
    The 10 most successful circuits over rolling past year:
    • schema4 4792
    • schema1 3330
    • schema8 1578
    • schema2 1173
    • schema5 906
    • schema7 769
    • schema12 656
    • schema29 353
    • schema3 349
    • schema6 310
    The 10 most successful circuits ever (since 1/2020):
    • schema4 23388
    • schema1 21086
    • schema8 9525
    • schema5 6484
    • schema6 6364
    • schema2 5987
    • schema3 4264
    • schema7 2660
    • schema15 2069
    • schema9 1546

    Counts of tube curves display:
    • since beginning 4739
    • rolling past year 467
    • rolling past month 75
    • rolling past week

    "DCTriode" PC app downloads (includes search engines hits) (this log was not filled from 11/2023 till 4/2025!):
    • since beginning 1395
    • rolling past year 655
    • rolling past month 74
    • rolling past week 25
    Counts of circuit simulations
    over the rolling past year:
    • circuit #1 - 3363
    • circuit #2 - 1173
    • circuit #3 - 349
    • circuit #4 - 4792
    • circuit #5 - 906
    • circuit #6 - 310
    • circuit #7 - 769
    • circuit #8 - 1578
    • circuit #9 - 162
    • circuit #10 - 222
    • circuit #11 - 221
    • circuit #12 - 656
    • circuit #13 - 21
    • circuit #15 - 134
    • circuit #17 - 1
    • circuit #20 - 130
    • circuit #22 - 46
    • circuit #23 - 16
    • circuit #24 - 6
    • circuit #26 - 74
    • circuit #28 - 1
    • circuit #29 - 353
    • circuit #30 - 237
    • circuit #31 - 182
    • circuit #33 - 70
    • circuit #34 - 22
    • circuit #35 - 19
    • circuit #36 - 113
    • circuit #37 - 54
    • circuit #38 - 53
    Counts of circuit simulations
    over the rolling past month:
    • circuit #1 - 37
    • circuit #2 - 11
    • circuit #3 - 25
    • circuit #4 - 124
    • circuit #6 - 7
    • circuit #7 - 108
    • circuit #8 - 115
    • circuit #9 - 53
    • circuit #11 - 37
    • circuit #12 - 6
    • circuit #15 - 31
    • circuit #20 - 1
    • circuit #24 - 1
    • circuit #30 - 130
    • circuit #33 - 19
    • circuit #34 - 1
    Counts of circuit simulations
    over the rolling past week:
    • circuit #1 - 6
    • circuit #3 - 12
    • circuit #4 - 19
    • circuit #7 - 5
    • circuit #8 - 7
    • circuit #11 - 28