Carbon User Reviews

What users say

Top reviews

This is an amazing app

Really enjoyed using this application. Easy to use, but very complete and powerful at the same time.

Response from developer

Thank you for the 5-star review! We love hearing that Carbon is easy for you to use, but packs a powerful punch in supporting your goals!

Amazing Coaching App

This app is amazing for any diet. Keeps you balanced with lots of flexibility to great longevity in a fat loss phase!

Response from developer

Thank you so much for the great review! We love hearing that Carbon gives you the flexibility to make your diet work without losing the balance needed for long-term progress. That sustainable approach is such an important part of the process!

Great app and coaching tool

A great app to track macros and more. It’s like having a coach in your pocket. It’s intuitive and has helped me stay on track.

Response from developer

Thank you so much for the awesome review! We’re thrilled to hear Carbon has helped keep you on track. Hearing that it feels like having a coach in your pocket is such a great compliment because that’s exactly the experience we’re striving to create. Thanks again for taking the time to share your feedback!

Long time user

Love this app. Been using it since 2024. Super easy to navigate and prefer the optics of this app over others.

Response from developer

Thank you so much for being with Carbon since 2024! We’re thrilled that the app has continued to feel easy to navigate and stands out from the other options you’ve tried. Long-term support like yours is incredibly appreciated, and we’re excited to keep improving the experience for you!

Simple, effective

In January 2025 I was 286 pounds. I am now as of today 231.4 pounds, looking at a goal weight of about 200 to 210 pounds hopefully by spring of next year. Go at your own pace, take diet breaks every 12-16 weeks and use the app while weighing yourself every morning and you’re good to go.

Response from developer

Congratulations on your incredible progress! Losing over 50 pounds is an amazing accomplishment, and we love seeing that you’re taking a sustainable approach instead of rushing the process. Thank you so much for taking the time to share your experience, and we’re excited to keep helping you reach that next goal!

Love Carbon Diet Coach!

I’ve been using the app for several years now and I love it. I use it on the daily basis and it helps massively with balancing my macro intake with my work/training requirements. I am impressed with the accuracy of the algorithm it deploys; it responds appropriately and in a measured way.
I would highly recommend to anyone that if they want a real app that helps them with their diet goals, look no further!
Show more

Response from developer

Thank you so much for sharing this! Hearing from someone who’s been using Carbon for several years is incredibly special. We’re so happy the coach has continued to help you balance your nutrition around both work and training, and it’s especially rewarding to hear you’ve found the adjustments accurate and measured over time. Thank you for sticking with us, and thank you for recommending Carbon to others. We really appreciate you!

Best app for any goal

I’ve been able to successfully maintain my weight for two years and reached a deficit goal in the past all because of this app. Currently in a deficit now and this app just makes everything a breeze and enjoyable. This app truly taught me food is your friend no matter what goal you have.

Great app

I am using this app, although I am having problems reaching my protein goals, but I am still tweaking it as much as I possibly can and making sure that I have enough protein for the day

Initiative and very useful

Like having a coach in your pocket

Gratitude

Love this app and the science behind it. Carbon keeps me focused on my goals and I appreciate the updates.

Carbon works for me

As a woman in her 60’s, I knew I needed to eat more protein. Carbon showed me how much. Helps make sure I continue to. Best of all, I’m stronger. I’m maintaining my goal weight.

An easy habit to pick up

Tracking is always a little awkward at first but after trying several, Carbon makes is the easiest to make tracking a habit. Interface is simple and the database is huge. It’s second nature. And the Coach works! I’m down about 25 pounds since I had open heart surgery in January. I realize I have extra motivation but this reduces a main point of friction.
Show more

Not ideal

I would wish to be able to track more things like micronutrients.
Tracking foods can be a pain. For example I make my coffee at home. I use a specific soy milk. So for example I tried putting in: „Cappucino double shot with pure harvest unsweetened soy milk and 1 tea spoon honey.“ nope would do it. Instead it suggests cappucino‘s from different coffee shops or simply a cappucino without specifying the milk. But this is what makes the difference! Do I use normal milk or soy milk? Is it sweentened or unsweetened. Is my coffee a single shot or double shot. All things necessary for precise tracking. Then I tried a flat white. Same milk but I only put in föat white. When I tapped it it showed me an error. But when I choose a flat white from a coffee shop it works. Sorry but first day and already had enough.
Show more

Response from developer

Thank you for the feedback, and we’re sorry your first experience was frustrating. For the most accurate tracking, entries like the coffee example are generally best logged as their individual components (espresso, soy milk, honey, etc.), which allows Carbon to calculate the nutrition based on exactly what you’re consuming rather than making assumptions about a custom drink recipe. Additionally, Carbon does track a variety of micronutrients, and we’re always looking for ways to improve the tracking experience. Regarding the error you encountered with the flat white entry, we’d love to investigate that directly. Please reach out to us at support@joincarbon.com with the details, and our team will be happy to take a closer look and help get things sorted.

Limited food options

I find it frustrating when I’m trying to adhere to recommendations about macros to and I can’t accurately record my food intake. Ex: golden kiwi with skin on, only option is a generic kiwi. Or cornmeal breaded catfish, only option is battered or baked catfish. If it’s adding 13 calories per week to my goals, I’d like that level of detailed accuracy in my food reporting but the options are there.
Show more

Coach In Your Phone

Carbon has helped me in maintaining my weight at the number I want. It’s also helped with a mini cut and mini bulk with the weight loss and weight gain feature. The app really works in letting you know the macros needed and adjust every week after the check ins.

Not Worth the Cost

Not worth the cost when compared to other apps.

Check-ins and targets didn’t work for me (I am trying to gain weight). I am guessing that part of the problem is that it doesn’t account for activity.

Also, there are a significant number of food data errors. For the price, these errors should not be in the app. A bit of data analytics would find some of them (e.g., foods that display more of a macro than the total weight of the item!).
Show more

It’s the best!!!!!

It’s simple, accurate, and comprehensive. 🙂

Not what I expected

Just want to say, one week in to a six month subscription and I am not overly impressed with this app compared to MyFittnessPal. I have been tracking for 4 years and was hoping this app would provide something more. So far, doesn’t link to my activity from Apple Watch, and many of the foods in Canada aren’t listed. The interface isn’t as user friendly and I feel frustrated logging because it takes more time. I will continue to use it because I paid for it but I am not planning on renewing.
Show more

Response from developer

Thank you for the thoughtful feedback. Carbon is designed differently from apps like MyFitnessPal in that it functions as an adaptive nutrition coach, not just a food logger. The app uses your check-in data and progress to adjust your macros over time so you’re not left guessing what changes to make yourself. Regarding activity tracking, Carbon intentionally does not use Apple Watch calorie burn estimates for macro adjustments because wearable calorie estimates are often highly inaccurate. Instead, the app adjusts based on your real-world progress and response over time. Carbon's verified-only food database supports many Canadian foods, and continues to expand. We appreciate your feedback and would love the opportunity to assist you directly in getting the most of out Carbon! Please reach us at support@joincarbon.com.

Great app let down by connection problems

A very well designed easy to use app with great functionality, it makes recording food very easy and I gained insights while it worked. The best thing is how fast it makes getting the data into the system with a clever combination of barcode scanning and remembering what has previously been entered. Unfortunately unreliable connection issues render it useless for me now. I’ve tried various things but it still doesn’t work. I’m using a fairly modern iPhone and all the other apps I have can connect without issues it’s just this one that doesn’t work.
Show more

Response from developer

Thank you for the thoughtful review and for highlighting what you liked about Carbon’s design, food logging, and barcode tools. We’re sorry the connection issue got in the way of that experience. Carbon maintains very strong app stability and connectivity overall, so when “no connection” appears, it’s often related to a device or network setting, such as VPN, Private Relay, firewall settings, Wi-Fi/cellular switching, or local permissions. We’d really like to help you troubleshoot this directly and get Carbon working the way it should for you. Please reach out to support@joincarbon.com so our team can take a closer look!

10/10

Easy to use. Worth the subscription price.