<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yiv6351353055"><div id="yui_3_16_0_1_1446911768388_12600"><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" id="yui_3_16_0_1_1446911768388_12599"><div id="yiv6351353055"><div id="yiv6351353055yui_3_16_0_1_1446911768388_10025"><div id="yiv6351353055yui_3_16_0_1_1446911768388_10024" style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6013" style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;">> <span id="yiv6351353055yui_3_16_0_1_1446911768388_6012" style="font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;">As of about 2 years ago, expr and relatives are LGPL and thus compatible with the App Store.</span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6011" style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"><span style="font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;"><br clear="none"></span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056" style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"><span id="yiv6351353055yui_3_16_0_1_1446911768388_6094" style="font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;">I emailed the Free Software Foundation, who are the publishers of the LGPL. They responded </span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056" style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"><span style="font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;" id="yui_3_16_0_1_1446911768388_13278">that the LGPL is not compatible with the restrictive terms of Apple's app store.</span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056" style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"><span style="font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:13px;"><br></span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif" id="yui_3_16_0_1_1446911768388_12881"><span style="font-size: 13px;" id="yui_3_16_0_1_1446911768388_12880">I forgot to ask them in advance if I could publicly post their response. If they say I </span></font><span style="font-size: 13px; font-family: 'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;" id="yui_3_16_0_1_1446911768388_13279">can do so, I'll post their actual response. But it sounded pretty clear</span><span style="font-size: 13px; font-family: 'Helvetica Neue', 'Segoe UI', Helvetica, Arial, 'Lucida Grande', sans-serif;" id="yui_3_16_0_1_1446911768388_13356">.</span></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif"><span style="font-size: 13px;"><br></span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif" id="yui_3_16_0_1_1446911768388_12948"><span style="font-size: 13px;" id="yui_3_16_0_1_1446911768388_12947">I suppose one could argue if it's a free app then who cares, and that the copyright holders of expr (or even Apple) are extremely unlikely to create a licensing fuss. But then that's the case whether expr is GPL, LGPL, or even "don't use this to murder people with drones" license.</span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif"><span style="font-size: 13px;"><br></span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif" id="yui_3_16_0_1_1446911768388_13486"><span style="font-size: 13px;" id="yui_3_16_0_1_1446911768388_13485">If you want to write/use open source software that's compatible with Apple's app store, use </span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif" id="yui_3_16_0_1_1446911768388_13505"><span style="font-size: 13px;" id="yui_3_16_0_1_1446911768388_13506">the 3-clause BSD license.</span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif"><span style="font-size: 13px;"><br></span></font></div><div dir="ltr" id="yiv6351353055yui_3_16_0_1_1446911768388_6056"><font face="Helvetica Neue, Segoe UI, Helvetica, Arial, Lucida Grande, sans-serif" id="yui_3_16_0_1_1446911768388_12885"><span style="font-size: 13px;" id="yui_3_16_0_1_1446911768388_12884">-Jonathan</span></font></div></div></div></div></div></div></div></div></body></html>