You can download free trial version (1.04.018), copy it onto your computer, and use forever. It has no time or callsign restrictions at all. Instead of them we suppose some quantitative limitations for a number of QSOs in each logbook, and a number of callsings in database.
Please note: database structure and functionality are not the same as in release version! The best way to familiarize yourself with the full functionality is to use CheckLog production release; feel free to ask for a temporary activation key.
From version 1.05.021 (build 3615) CheckLog is able to use virtual activation keys, published in Internet. User's computer must have Internet access to use virtual keys. On startup the system retrieve the keys from server, and apply them to current configuration automatically. Virtual keys are restricted to country (territory) and expiration date. All the veterans of World War II (callsigns like U0*...U9*) can use CheckLog with permanent virtual activation keys forever.
At a moment issued virtual keys are applicable for:
● Russia (DXCC: UA1, UA2 & UA9) - until 30 Apr 2020.
All operators with III or IV Category or SWLs (SWARL.org registered) can use it for free evaluations.
You should get a proper activation key for your callsign in production (plugin-oriented) system (since 1.04.019 release). For example, if you're using callsigns ZZ1AAA, ZZ1AAA/P, RA/ZZ1AAA - you need only one key, for ZZ1AAA callsign. Any new combination with prefix or additional suffix keys with your callsign never needs new activation key.
Temporary keys are available for evaluations during two weeks from issuing date without any donations. Permanent keys never expires (at least, until of 2099-12-31). We hope that this is calm enough ... All the permanent keys are available after donation, the minimum donation for one key is US$ 15 (worldwide) or 10 euros (EU and other European countries).
You can ask for personal exceptions if you can argument it... Now only two exceptions of donation policy are defined: SWLs (short-wave listeners, for one SWL Callsign, SWARL.org registration needed) and children's HAM Radio Clubs (for one Club Callsign - not for personal callsigns) .
You can ask for activation key by pressing the button: