Hi there!
Well, this is a bit tricky to answer. You know, the Joie Pact as well as the Kinderkraft Indy are cheap models, meaning I wouldn't expect a big difference in quality. Both are only sporting a light suspension; both are very small (therefore, the thing to consider is mainly the backrest, which is OK in both buggies); both have a rather small and not that sturdy a canopy... Overall, easy little pushchairs for undemanding parents, where most features are dependent/relative to the affordable price - including the quality. I don't think you will make a mistake with any of those, compared to the other one. Also, don't forget to count on a not-so-upward seat (in the sitting position) with both of them.
If I am truly to make a strict verdict, I would probably opt for the Joie Pact in this case - Joie is a little better, non-Polish brand (even though most of the pushchairs are anyway made in China, so it only depends on the producer to set up the right production costs and quality-requirements)... And with the Pact, I also like a little more the thicker plastic parts, the wider wheels, and the slightly more compact folded package. It would be ideal to go and try both buggies somewhere to see how they feel in your hand, but with the situation as it is, I would recommend listening to your feeling and design-preferences, and my opinion will be that I am a little more inclined to the Pact.