diff --git a/apps/gui/color_picker.c b/apps/gui/color_picker.c
index a32f1ee179..ef17c0a230 100644
--- a/apps/gui/color_picker.c
+++ b/apps/gui/color_picker.c
@@ -154,7 +154,6 @@ static void draw_screen(struct screen *display, char *title,
 {
     unsigned  text_color       = LCD_BLACK;
     unsigned  background_color = LCD_WHITE;
-    char      buf[32];
     int       i, char_height, line_height;
     int       max_label_width;
     int       text_x, text_top;
@@ -253,17 +252,16 @@ static void draw_screen(struct screen *display, char *title,
         set_drawinfo(display, mode, fg, bg);
 
         /* Draw label */
-        buf[0] = str(LANG_COLOR_RGB_LABELS)[i];
-        buf[1] = '\0';
         vp.flags &= ~VP_FLAG_ALIGNMENT_MASK;
-        display->putsxy(text_x, text_top, buf);
+        display->putsxyf(text_x, text_top, "%c", str(LANG_COLOR_RGB_LABELS)[i]);
         /* Draw color value */
-        if (display->depth >= 24)
-            snprintf(buf, 4, "%03d", rgb->rgb_val[i] & 0xFF);
-        else
-            snprintf(buf, 3, "%02d", rgb->rgb_val[i] & 0x3F);
         vp.flags |= VP_FLAG_ALIGN_RIGHT;
-        display->putsxy(text_x, text_top, buf);
+        if (display->depth >= 24)
+            display->putsxyf(text_x, text_top, "%03d", rgb->rgb_val[i] & 0xFF);
+        else
+            display->putsxyf(text_x, text_top, "%02d", rgb->rgb_val[i] & 0x3F);
+
+
 
         /* Draw scrollbar */
         gui_scrollbar_draw(display,                     /* screen */
@@ -280,9 +278,6 @@ static void draw_screen(struct screen *display, char *title,
         text_top += line_height;
     } /* end for */
 
-    /* Format RGB: #rrggbb */
-    snprintf(buf, sizeof(buf), str(LANG_COLOR_RGB_VALUE),
-                               rgb->red, rgb->green, rgb->blue);
     vp.flags |= VP_FLAG_ALIGN_CENTER;
     if (display->depth >= 16)
     {
@@ -301,8 +296,9 @@ static void draw_screen(struct screen *display, char *title,
             /* Draw RGB: #rrggbb in middle of swatch */
             set_drawinfo(display, DRMODE_FG, get_black_or_white(rgb),
                          background_color);
-
-            display->putsxy(0, top + (height - char_height) / 2, buf);
+            /* Format RGB: #rrggbb */
+            display->putsxyf(0, top + (height - char_height) / 2,
+                str(LANG_COLOR_RGB_VALUE), rgb->red, rgb->green, rgb->blue);
 
             /* Draw border around the rect */
             set_drawinfo(display, DRMODE_SOLID, text_color, background_color);
@@ -318,7 +314,9 @@ static void draw_screen(struct screen *display, char *title,
         if (height >= char_height)
         {
             set_drawinfo(display, DRMODE_SOLID, text_color, background_color);
-            display->putsxy(0, top + (height - char_height) / 2, buf);
+            /* Format RGB: #rrggbb */
+            display->putsxyf(0, top + (height - char_height) / 2,
+                    str(LANG_COLOR_RGB_VALUE), rgb->red, rgb->green, rgb->blue);
         }
     }
 
diff --git a/apps/gui/line.c b/apps/gui/line.c
index d319ff3c51..7e84aa7b31 100644
--- a/apps/gui/line.c
+++ b/apps/gui/line.c
@@ -264,8 +264,7 @@ next:
                     else
                     {
                         /* any other character here is an erroneous format string */
-                        snprintf(tempbuf, sizeof(tempbuf), "<E:%c>", ch);
-                        display->putsxy(xpos, y, tempbuf);
+                        display->putsxyf(xpos, y, "<E:%c>", ch);
                         /* Don't consider going forward, fix the caller */
                         return;
                     }
diff --git a/apps/menus/eq_menu.c b/apps/menus/eq_menu.c
index fd9f484047..c25d19e352 100644
--- a/apps/menus/eq_menu.c
+++ b/apps/menus/eq_menu.c
@@ -590,7 +590,6 @@ int eq_menu_graphical(void)
     int *setting;
     int current_band, x, y, step, fast_step, min, max;
     enum eq_slider_mode mode;
-    char buf[24];
     int h, height, start_item, nb_eq_sliders[NB_SCREENS];
     FOR_NB_SCREENS(i)
         viewportmanager_theme_enable(i, false, NULL);
@@ -638,10 +637,8 @@ int eq_menu_graphical(void)
                 min = EQ_GAIN_MIN;
                 max = EQ_GAIN_MAX;
 
-                snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
+                screens[i].putsxyf(0, 0, str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
                          str(LANG_SYSFONT_GAIN), "(dB)");
-
-                screens[i].putsxy(0, 0, buf);
             } else if (mode == CUTOFF) {
                 /* cutoff */
                 setting = &global_settings.eq_band_settings[current_band].cutoff;
@@ -651,10 +648,8 @@ int eq_menu_graphical(void)
                 min = EQ_CUTOFF_MIN;
                 max = EQ_CUTOFF_MAX;
 
-                snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
+                screens[i].putsxyf(0, 0, str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
                          str(LANG_SYSFONT_EQUALIZER_BAND_CUTOFF), "(Hz)");
-
-                screens[i].putsxy(0, 0, buf);
             } else {
                 /* Q */
                 setting = &global_settings.eq_band_settings[current_band].q;
@@ -664,10 +659,8 @@ int eq_menu_graphical(void)
                 min = EQ_Q_MIN;
                 max = EQ_Q_MAX;
 
-                snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
+                screens[i].putsxyf(0, 0, str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
                          str(LANG_SYSFONT_EQUALIZER_BAND_Q), "");
-
-                screens[i].putsxy(0, 0, buf);
             }
 
             /* Draw scrollbar if needed */