Excellent features; but it crashes frequently

The Good:
I’m a beginner, using this app to teach me how to do these exercises, and to log my progress. I couldn’t be happier. It has a large catalog of exercises to choose from, with clear explanations and wonderful “show me” videos integrated nicely into the page. you can get your instructions in writing, by audio (“tell me”) and HD video (“Show me.”) 5-stars for all of that.
More good:
I’ve installed the app on my iPhone and also the Mac. I use the iPhone when working out (what to do next, review the instructions, look at the demo, do the exercise, and log what I’ve done), and then when I get home, can upload my log to the Cloud and then download it to my Mac to keep long-term records. All good. For improvement: too bad the synchronization via the cloud isn’t automatic, the way Apple’s apps are (contacts, notes, calendar, etc.) You have to upload from the phone manually, and then download to the Mac manually. 3-stars for this.

The terrible: The Mac app crashes frequently. I mean really, really frequently. I have Mavericks (Mac OS 10.9) on my Mac. For example, when adding exercises from the catalog, it crashed each time I added one. (At least it did add and save it before crashing). I had to re-launch the app after adding each exercise. This is inexcusable. Less than 1-star for stability.

Fix the crashing and my review goes to 4-stars. Then make it sync automatically whenever data changes and this will be a 5-star app.

NJMusicNerd about Fitness Trainer