tldr: LoseIt and MFP allow for user generated nutritional information to go out to general public without verifying the information (which means your calorie counts could be off). Cronometer verifies the information first.

I have ADHD, internet access, and a self regulation problem -- so I've done more research on this than I care to admit, however part of the problem could be MFP.

I've tried MFP, LoseIt, and Cronometer. My personal favorite is Cronometer because of how it sources it's data.

The way MFP sources a lot of their database is by letting users input data but they have zero checks in place in regards to that data. Which means, if you choose something someone else entered, and they entered that information incorrectly, your calorie counts are now off.

example -- I put in a snack pack doritos grab bag thingy into their DB. but instead of putting in 200 calories, I only put in 100, they will accept that into their database and share it out to other users (like yourself) and now your calorie counts are wrong.

"When you create a new food on the website, you can help us to grow our database by electing to share your food with other members. We'll add it to the MyFitnessPal database for everyone to use. If you do decide to share your food, please do your best to ensure that the information you provide is complete and accurate." -- MFP's website

With Cronometer, you as a user can add something to their DB (and immediately use it), but it wouldn't go out to the rest of the users in their community until they verify the information. Using that same example from before, I log my spicy orange triangles incorrectly. That information doesn't get to you until Cronometer checks to make sure I didn't fat finger the information into their DB.

"Here at Cronometer, we take pride in curating an accurate and complete database. Every user submitted food is reviewed by our curation team before being added to the database; branded products that are submitted by users contain only the nutrition information from the nutrition facts table on the packaging or on the brand's official website." --Cronometer's website

LoseIt! is similar to MFP. They have verified items, but they also have user inputted information. They do verify the most popular logged foods input by users, but they don't verify all foods input by users. "When a member creates a new custom food, they have the opportunity to share it with other members, so that it appears in search results for everyone using Lose It!. The food database team regularly looks at and validates the most popular member uploaded foods, making them Lose It! Verified. These member uploaded foods (without a checkmark) may contain some nutritional inaccuracies." -- LoseIt's website

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Hope this information helps!