A quick hack to see how all the fonts in iOS look like live

ios-font-iterator.m

    CGFloat height = 20;
    CGRect frameMessage = CGRectMake(0, 0, self.view.bounds.size.width, height);
    MessageView *messageView;// = [[MessageView alloc] initWithFrame:frameMessage message:@"Font list" font:@"Thonburi-Bold"];
    
    // Iterate over all the fonts in iOS
    NSArray *fonts = [NSArray arrayWithObjects:@"Thonburi-Bold", @"Thonburi", @"Thonburi-Light", @"SnellRoundhand-Black", @"SnellRoundhand-Bold", @"SnellRoundhand", @"AcademyEngravedLetPlain", @"MarkerFelt-Thin", @"MarkerFelt-Wide", @"Avenir-Heavy", @"Avenir-Oblique", @"Avenir-Black", @"Avenir-Book", @"Avenir-BlackOblique", @"Avenir-HeavyOblique", @"Avenir-Light", @"Avenir-MediumOblique", @"Avenir-Medium", @"Avenir-LightOblique", @"Avenir-Roman", @"Avenir-BookOblique", @"GeezaPro-Bold", @"GeezaPro", @"GeezaPro-Light", @"ArialRoundedMTBold", @"Trebuchet-BoldItalic", @"TrebuchetMS", @"TrebuchetMS-Bold", @"TrebuchetMS-Italic", @"ArialMT", @"Arial-BoldItalicMT", @"Arial-ItalicMT", @"Arial-BoldMT", @"Marion-Regular", @"Marion-Italic", @"Marion-Bold", @"Menlo-BoldItalic", @"Menlo-Regular", @"Menlo-Bold", @"Menlo-Italic", @"MalayalamSangamMN", @"MalayalamSangamMN-Bold", @"KannadaSangamMN", @"KannadaSangamMN-Bold", @"GurmukhiMN-Bold", @"GurmukhiMN", @"BodoniSvtyTwoOSITCTT-BookIt", @"BodoniSvtyTwoOSITCTT-Bold", @"BodoniSvtyTwoOSITCTT-Book", @"BradleyHandITCTT-Bold", @"Cochin-Bold", @"Cochin-BoldItalic", @"Cochin-Italic", @"Cochin", @"SinhalaSangamMN", @"SinhalaSangamMN-Bold", @"HiraKakuProN-W6", @"HiraKakuProN-W3", @"IowanOldStyle-Bold", @"IowanOldStyle-BoldItalic", @"IowanOldStyle-Italic", @"IowanOldStyle-Roman", @"DamascusBold", @"Damascus", @"DamascusMedium", @"DamascusSemiBold", @"AlNile-Bold", @"AlNile", @"Farah", @"Papyrus-Condensed", @"Papyrus", @"Verdana-BoldItalic", @"Verdana-Italic", @"Verdana", @"Verdana-Bold", @"ZapfDingbatsITC", @"DINCondensed-Bold", @"AvenirNextCondensed-Regular", @"AvenirNextCondensed-MediumItalic", @"AvenirNextCondensed-UltraLightItalic", @"AvenirNextCondensed-UltraLight", @"AvenirNextCondensed-BoldItalic", @"AvenirNextCondensed-Italic", @"AvenirNextCondensed-Medium", @"AvenirNextCondensed-HeavyItalic", @"AvenirNextCondensed-Heavy", @"AvenirNextCondensed-DemiBoldItalic", @"AvenirNextCondensed-DemiBold", @"AvenirNextCondensed-Bold", @"Courier", @"Courier-Oblique", @"Courier-BoldOblique", @"Courier-Bold", @"HoeflerText-Regular", @"HoeflerText-BlackItalic", @"HoeflerText-Italic", @"HoeflerText-Black", @"EuphemiaUCAS", @"EuphemiaUCAS-Bold", @"EuphemiaUCAS-Italic", @"Helvetica-Oblique", @"Helvetica-Light", @"Helvetica-Bold", @"Helvetica", @"Helvetica-BoldOblique", @"Helvetica-LightOblique", @"HiraMinProN-W6", @"HiraMinProN-W3", @"BodoniOrnamentsITCTT", @"Superclarendon-Regular", @"Superclarendon-BoldItalic", @"Superclarendon-Light", @"Superclarendon-BlackItalic", @"Superclarendon-Italic", @"Superclarendon-LightItalic", @"Superclarendon-Bold", @"Superclarendon-Black", @"DiwanMishafi", @"Optima-Regular", @"Optima-Italic", @"Optima-Bold", @"Optima-BoldItalic", @"Optima-ExtraBlack", @"GujaratiSangamMN-Bold", @"GujaratiSangamMN", @"DevanagariSangamMN", @"DevanagariSangamMN-Bold", @"AppleColorEmoji", @"SavoyeLetPlain", @"Kailasa", @"Kailasa-Bold", @"TimesNewRomanPS-BoldItalicMT", @"TimesNewRomanPSMT", @"TimesNewRomanPS-BoldMT", @"TimesNewRomanPS-ItalicMT", @"TeluguSangamMN", @"TeluguSangamMN-Bold", @"STHeitiSC-Medium", @"STHeitiSC-Light", @"AppleSDGothicNeo-Thin", @"AppleSDGothicNeo-SemiBold", @"AppleSDGothicNeo-Medium", @"AppleSDGothicNeo-Regular", @"AppleSDGothicNeo-Bold", @"AppleSDGothicNeo-Light", @"Futura-Medium", @"Futura-CondensedMedium", @"Futura-MediumItalic", @"Futura-CondensedExtraBold", @"BodoniSvtyTwoITCTT-Book", @"BodoniSvtyTwoITCTT-Bold", @"BodoniSvtyTwoITCTT-BookIta", @"Baskerville-Bold", @"Baskerville-SemiBoldItalic", @"Baskerville-BoldItalic", @"Baskerville", @"Baskerville-SemiBold", @"Baskerville-Italic", @"Symbol", @"STHeitiTC-Medium", @"STHeitiTC-Light", @"Copperplate", @"Copperplate-Light", @"Copperplate-Bold", @"PartyLetPlain", @"AmericanTypewriter-Light", @"AmericanTypewriter-CondensedLight", @"AmericanTypewriter-CondensedBold", @"AmericanTypewriter", @"AmericanTypewriter-Condensed", @"AmericanTypewriter-Bold", @"ChalkboardSE-Light", @"ChalkboardSE-Regular", @"ChalkboardSE-Bold", @"AvenirNext-MediumItalic", @"AvenirNext-Bold", @"AvenirNext-UltraLight", @"AvenirNext-DemiBold", @"AvenirNext-HeavyItalic", @"AvenirNext-Heavy", @"AvenirNext-Medium", @"AvenirNext-Italic", @"AvenirNext-UltraLightItalic", @"AvenirNext-BoldItalic", @"AvenirNext-Regular", @"AvenirNext-DemiBoldItalic", @"BanglaSangamMN", @"BanglaSangamMN-Bold", @"Noteworthy-Bold", @"Noteworthy-Light", @"Zapfino", @"TamilSangamMN", @"TamilSangamMN-Bold", @"Chalkduster", @"ArialHebrew-Bold", @"ArialHebrew-Light", @"ArialHebrew", @"Georgia-BoldItalic", @"Georgia-Bold", @"Georgia-Italic", @"Georgia", @"HelveticaNeue-BoldItalic", @"HelveticaNeue-Light", @"HelveticaNeue-Italic", @"HelveticaNeue-UltraLightItalic", @"HelveticaNeue-CondensedBold", @"HelveticaNeue-MediumItalic", @"HelveticaNeue-Thin", @"HelveticaNeue-Medium", @"HelveticaNeue-ThinItalic", @"HelveticaNeue-LightItalic", @"HelveticaNeue-UltraLight", @"HelveticaNeue-Bold", @"HelveticaNeue", @"HelveticaNeue-CondensedBlack", @"GillSans", @"GillSans-Italic", @"GillSans-BoldItalic", @"GillSans-Light", @"GillSans-LightItalic", @"GillSans-Bold", @"Palatino-Roman", @"Palatino-Italic", @"Palatino-Bold", @"Palatino-BoldItalic", @"CourierNewPSMT", @"CourierNewPS-BoldMT", @"CourierNewPS-ItalicMT", @"CourierNewPS-BoldItalicMT", @"OriyaSangamMN", @"OriyaSangamMN-Bold", @"Didot-Bold", @"Didot-Italic", @"Didot", @"DINAlternate-Bold", @"BodoniSvtyTwoSCITCTT-Book", nil];
    
    NSRange range;
    range.location = 24*0;
    range.length = 24;
    for (NSString *font in [fonts subarrayWithRange:range]) {
        // 24 at a time
        [self.view addSubview:[[MessageView alloc] initWithFrame:frameMessage message:font font:font]];
        frameMessage.origin.y += height;
    }