Open Data Kit
Free
Open Data Kit provides a suite of open-source tools that help organizations collect, manage, and use data in resource-constrained environments. It is widely used for field data collection.

Our take
Excellent for data collection in tough conditions.
Okay, so Open Data Kit, or ODK as the cool kids call it, is this open-source tool that’s supposed to make data collection a bit less of a hassle, especially when you’re out in the field. Right off the bat, I’d say it’s pretty handy if you’re tired of lugging around paper forms. The big selling point here is that it works offline, so if you're out in the boonies with no signal, you can still gather data without a hitch. As soon as you're back in civilization, it syncs everything up. It's like a trusty Swiss Army knife for data nerds who can't always rely on a Wi-Fi connection.
Now, let's talk about ease of use. Honestly, there’s a bit of a learning curve with ODK. Setting up forms isn’t as intuitive as it could be, and it might feel a bit clunky at first. If you're not tech-savvy, you might find yourself scratching your head more than once. But, hey, once you get the hang of it, it's pretty smooth sailing. There's a community out there that’s quite helpful, so if you get stuck, chances are someone’s got your back. Just be prepared to spend some time getting familiar with all its quirks.
One thing I really appreciated is how flexible ODK is. You can customize the heck out of it. It supports branching logic and multimedia, so if you need to add photos or audio to your surveys, it’s got you covered. This flexibility is a game-changer for complex surveys, and having all that data in one spot is pretty sweet. On the flip side, all this customizability means that it might be overkill for simpler projects. If all you need is a straightforward form, you might find yourself wading through features you don’t really need.
Security is another area where ODK shines. It’s open-source, which means it’s transparent and regularly vetted by the community. If you’re handling sensitive data, this transparency can be a real peace-of-mind booster. Plus, you can manage data permissions pretty tightly, ensuring that only the right eyes see the right info. Just remember that with great power comes great responsibility, so you’ll need to make sure you’ve set up everything correctly to keep that data safe and sound.
Overall, if you’re in the business of data collection and need something rugged and reliable, ODK is worth checking out. It’s not perfect, and it’s not for everyone, but it gets the job done. Just be ready to invest some time upfront to really tap into what it can do. If you can push through the initial setup and learning phase, it’ll likely become a trusty tool in your data collection arsenal. But if you’re looking for something plug-and-play, you might want to keep looking. At the end of the day, it’s all about finding the right fit for your needs.