| Commercial
5 a; E( f! b( q" Q | LGPL v. 2.1
; W1 |. i9 i8 ~. g- U5 ~: ^# [ | GPL v. 3
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License Cost- P+ }; C: }6 V1 k8 c. a2 a
| License fee charged.
& u$ B5 \% j& Z0 Z | Free
0 c0 t9 ? N; x# L) N3 U5 f F | Free
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Must provide source code for changes to Qt& b v+ b2 e d5 V
| No, modifications can be closed
9 {( ?3 f7 ^" N2 ~ | Source code must be provided: v8 k" n, Q/ `: ]8 s
| Source code must be provided
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Can create proprietary application
" ]6 M8 `0 |" Q/ c% E% X6 D | Yes—No source code must be disclosed.
5 [: R* t/ m2 W# J! O8 T | Yes, if dynamically linked to Qt library.
' O; Z9 _3 L" z% B, J | No, application is subject to the GPL and source must be available.
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Updates Provided
+ O; ?- ~1 C. u1 y F. C, Z* ] | Yes—to those with valid maintenance. @7 p6 m) A3 D8 g$ o
| Yes—Freely distributed.
8 O9 E9 k0 `0 T% `" R | Yes—Freely distributed.
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Support% k, @' h; i+ ?4 O4 e
| Yes, with valid maintenance agreement.1 D+ Y; Z1 D# i, t
| Not included, available separately for purchase.+ L4 T- C! ^! o: r( i4 O' h6 i
| Not included, available separately for purchase.
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Charge for Runtimes
) r! A1 D' T% n" [ | Yes, same criteria apply.9 A5 q# K% p; p0 t+ c
| No, distribution is royalty free.
8 ^1 A6 H# q; k/ a | No, distribution is royalty free.
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