Crash Reporter is a convenient tool for viewing recent crash reports on a jailbroken device - it's a free package hosted by BigBoss repository.

You can also view your syslog on the device by installing syslog &gt; /var/log/syslog (a free package hosted by Cydia/Telesphoreo repository), rebooting your device, and then using your favorite tool to view it at the command line (see here for slightly more detailed instructions). The syslog records where each crash report is saved.

Where is Diagnostics & Usage Data stored on iOS?
In a example like the one below I would like to adjust the figure horizontally so that the grid aligns with the surrounding text and the y-axis and the label protrudes into the margin. Note that the width of the x-axis is exactly \textwidth so it should fit comfortably. I could do this manually with a negative \hspace, but this is not very exact and also un-TeXy. 

Ideally what I would like to do is to define a point within the tikzpicture environment to serve as reference point for external alignment. Thin I could experiment with aligning the y-axis with the text and whatnot. I did not find a way to this in the Tikz manual.

\documentclass[a4paper,onesided]{article}
\usepackage{tikz}
\usepackage{blindtext}

\begin{document}
\blindtext

\begin{figure}[h!]
\begin{tikzpicture}[y=0.5mm, x=0.333\textwidth]

\def\axissep{5mm}
\def\tickl{2mm}
\def\xlabsep{3mm}

% y-axis
\draw (-\axissep,0) -- (-\axissep,100);
% y-ticks
\foreach \x in {10,20,30,40,60,70,80,90} % avoids double inking on 0, 50 and 100 that becomes thicker
    \draw (-\axissep,\x) -- ++ (-\tickl,0);
% y-tickslabels
\foreach \x in {0,50,100}
    \draw (-\axissep,\x) -- ++ (-\tickl*2,0);
\foreach \x in {0,50,100}
    \node[anchor=east] at (-\axissep-\tickl*2,\x) {\x};

% x-axis
\draw (0,-\axissep) -- ++ (3,0);
\foreach \x in {0,1,...,3}
    \draw (\x,-\axissep) -- ++ (0,-\tickl);

% x-labels
\node[below] at (0,-\axissep-\tickl){1};
\node[below] at (1,-\axissep-\tickl){2};
\node[below] at (2,-\axissep-\tickl){3};
\node[below,align=center] at (3,-\axissep-\tickl){4};

% grid
\foreach \x in {0,10,...,100}
    \draw[very thin, color=gray] (0,\x) -- (3,\x);

\draw (0,10) -- (1,14) --(2,45) -- (3,23) ++ (1mm,0) node[anchor=west] {\tiny Some label};

\end{tikzpicture}
\end{figure}

\blindtext

\end{document}



