Stealth Core Deluxe Trainer - Fun Fitness Game for Strong Abs & Lean Core - Free iOS/Android App with 4 Mobile Games - Dynamic 3-Minute Daily Workout for Home, Gym, or Office

I am not an excercise enthusiast. I have always had a very weak core despite an athletic background through college. At 40, I'm trying to improve myself physically just a little, and I'm doing it with simple things I can do at home. To be clear, a lot of my effort started with losing weight nutritionally. So I'm at a fairly skinny but far from scrawny baseline at 5'9" 165ish. I bought this Stealth because I liked the idea - engaging your core by forcing yourself to be stable while planking. And I looked at cheaper versions and decided I should go with the quality brand with established, functional games to use. Stealth seems to have the best concept design for creating multi-directional instability that forces your core to keep you in place. If you're not picky about games, you don't have to pay a thing for the basic ones, and they're plenty engaging to keep you going for a couple minutes. I've started at 2 minutes a day - 2 minutes! I've even missed days here and there, yet in 3 weeks (I'm up to 3 minutes a day now) I can see some shape in my abdominal area that I have NEVER seen before. You can easily tell that it engages your abs from top to bottom. In my prior experience with traditional situps or crunches, my upper abs would do all the work, and I could never engage the lower ones. Not the case with this AT ALL. You can feel the fatigue from ribs to waist. Even when I used to be in good shape years ago and I could run forever, I never had any semblance of lines like I'm starting to see after 3 weeks of 2-3 minutes a day. Maybe this won't do as much for you if you're already a workout fiend, but if you want to start from scratch or limited core strength or stability, this is a great option if you're willing to spend $100 one time. The portability of this particular model plus a sale is why I bought it as opposed to the normal one that doesn't disassemble. It is perfectly stable so far with very clear instructions on how to assemble it appropriately.