Our verdict
This Noom review covers Noom Weight, the company's habit-change and food-logging app, and only that. Noom's pitch is that most diets fail because they tell you what to eat without helping you understand why you eat the way you do. So alongside a food log and a daily calorie range, the app gives you short daily lessons rooted in cognitive behavioural therapy, a colour system that steers you toward filling, lower-calorie foods without banning anything, a coach you can message, and community groups.
For people who have tried plain calorie counting and drifted away from it, that combination is Noom's real strength: it explains the reasoning, keeps you accountable and treats a slice of cake as something to balance rather than a failure. The weaknesses are just as consistent across reviews. It costs considerably more than free trackers, the subscription renews automatically, its starting calorie targets can be low, and daily logging and weighing are not a good fit for everyone, particularly anyone with a history of disordered eating.
NerdBible did not run its own trial of the app for this review. It is an editorial assessment built from Noom's own programme, terms and privacy pages, guidance from the Centers for Disease Control and Prevention and the National Institute of Mental Health, and the hands-on reviews of Healthline, Fortune and CNET, each credited where used. Nothing here is medical or nutritional advice: talk to a doctor or registered dietitian before starting any weight loss plan, especially if you have a health condition.
What is Noom and who is it for?
Noom is a US digital health company that has been around for well over a decade. Its explainer on how Noom works describes Noom Weight as a programme that helps you change your habits and mindset around food rather than following a fixed diet or buying packaged meals. You start with an online questionnaire about your weight, goal and dieting history, and Noom produces a plan, typically around 16 weeks, with a suggested daily calorie range. Noom says plans are paced at the commonly recommended one to two pounds a week, which matches the CDC's guidance that people who lose weight gradually and steadily are more likely to keep it off.
Noom Weight suits:
- People who want to understand their eating, not just record it. The daily lessons are the core of the product.
- App-comfortable adults with busy schedules. Everything happens on a phone, in short bursts.
- Anyone who dislikes rigid food rules. No food group is off limits.
It suits less well people on a tight budget, those who want face-to-face accountability, and anyone for whom tracking food or weight has been harmful in the past.
Key features
Daily psychology lessons
Noom says its lessons take about 5 to 15 minutes a day and are based on CBT, with quizzes, small tasks and reflection exercises that look at triggers such as stress, boredom and habit. Early lessons cover basics such as calorie density; later ones move into motivation, setbacks and maintenance. CNET noted the app can read lessons aloud.
Food logging and the colour system
You log meals and snacks in the app, either as you go or at the end of the day, and Healthline's long-term tester reported that barcode scanning makes this quicker. According to Noom's guide to its diet, foods are grouped by calorie density: green foods such as most vegetables, fruit and whole grains fill you up for few calories; yellow foods such as lean meat, fish and low-fat dairy sit in the middle; and orange foods such as chocolate, salami and fries are the most calorie dense. The app suggests a daily allotment for each colour. Noom stresses that orange foods are not banned, only balanced.
Coaching and community
Members get access to coaches trained in behaviour change, plus AI support in the app. Noom says you choose how often to check in, from every couple of weeks to more intensive support when you hit a plateau. Interest-based community groups let members share progress and questions. CNET pointed out that the included coaching is chat-based, and Healthline reports that one-to-one sessions by phone or video cost extra.
Weigh-ins, activity and integrations
Noom encourages a daily weigh-in so you see normal day-to-day fluctuations rather than a single weekly number. The app includes a step counter and on-demand Noom Move exercise classes, and it syncs with Apple Watch, Fitbit, Garmin, Withings and several other devices and apps.
Research base
Noom's research page lists more than 40 peer-reviewed papers and says its diabetes prevention programme was the first virtual one to receive full recognition from the CDC. Much of that research involves Noom's own scientists, so treat it as supportive rather than independent proof.
How much does Noom cost?
Our page shows current prices from our own data, so this section covers the structure only. Noom Weight is a subscription. You can pay month to month or commit to several months or a year at a lower effective monthly rate. New members usually start with a short trial. Noom's terms of use are worth reading before you sign up: paid plans and trials renew automatically unless you cancel before the next billing date, promotional prices revert to the standard rate when the promotion ends, and fees are generally non-refundable except where the law says otherwise (the terms give California residents a short window to rescind) or a promotion states it. Subscriptions bought through Apple's or Google's app stores are cancelled and refunded under those stores' rules instead.
CNET's reviewer found that the sign-up flow pushed a multi-month plan first and that the monthly option took some looking for, so check the term you are selecting before paying.
Is Noom safe?
For most healthy adults, a gradual calorie deficit with more vegetables and whole grains is a mainstream approach, and Noom's pacing reflects public health guidance. Two cautions recur in independent reviews. First, Healthline's dietitian and CNET both warn that the app's starting calorie goal can be lower than many people need; if your target feels too low, review it with a doctor or dietitian rather than pushing through. Second, CNET flags that daily weighing and food tracking can feed obsessive habits for some people. The National Institute of Mental Health notes that eating disorders are serious and treatable illnesses; if you have a history of one, speak with your care team before using any tracking app.
On privacy, Noom's privacy policy says it collects health data such as weight, mood, sleep, exercise and food intake, and uses cookies and advertising identifiers alongside partners. The policy's own table lists health data among the categories that can be used for advertising purposes. Read the policy and adjust your device's ad tracking settings if that concerns you.
What could be better
- Price. Noom costs far more than free food trackers that offer logging and barcode scanning.
- Auto-renewal. Trials and promotions roll into full-price renewals unless you cancel in time, and refunds are limited.
- Low starting calorie targets. Several reviewers advise checking the suggested range with a professional.
- Coaching depth. Included coaching is mostly chat; deeper one-to-one support costs extra.
- Life after the app. Fortune's tester wanted more guidance on maintaining results without counting calories.
Who should choose something else?
If you only want to log food and track calories or macros, a free or low-cost tracker will do the job. If you prefer in-person accountability, a local dietitian, a group programme or a trainer may suit you better. If you have a history of disordered eating, are pregnant, or have a condition such as diabetes or kidney disease, talk to your doctor before starting any calorie-restricted plan, and consider care led by a registered dietitian. And if rapid results are the goal, Noom is deliberately not built for that.
What other reviewers found
- Healthline followed one member for a year: she found the colour-coded charts motivating and logging easier with barcode scanning, while Healthline's dietitian warned that the app's initial calorie goal can be too low.
- Healthline's dietitian also liked that the colour system moves attention away from calories alone, but noted that some nutrient-dense foods still land in the yellow or orange groups.
- Fortune had a tester use the app for nine months; he found logging hard for the first couple of weeks and then routine, liked the device syncing, but wished for more help keeping weight off without tracking.
- CNET rated the educational lessons and flexible chat coaching highly, but criticised the price, a short trial, a sign-up that steered toward longer plans, and low calorie floors.
- CNET also cautioned that daily weighing and food tracking could be risky for people with a history of disordered eating.
Where reviewers agree and disagree
The outlets agree that the lessons are what set Noom apart, that the colour system is easier to live with than strict calorie counting, and that results depend heavily on how much effort you put in. They also agree on the main risks: low starting targets and a format built on constant tracking. Where they differ is on value. Fortune's long-term tester saw strong results and found the cost justified; CNET concluded that someone who only wants a tracker would be overpaying. For a buyer, that means Noom is worth it mainly if you will actually do the lessons. If you expect to use only the food log, save your money.
Is Noom worth it? Bottom line
Noom Weight earns its reputation as one of the best habit-coaching apps because it treats weight management as a behaviour problem first. The daily lessons, colour-coded logging, flexible coaching and community give you more structure and explanation than a basic tracker, and nothing is off limits, which makes it easier to stick with. Go in with eyes open: check the subscription term and renewal date, sanity-check your calorie target with a professional, and stop if tracking starts to feel compulsive. Used that way, it is a strong, well-designed coach in your pocket.
Frequently asked questions
How does the Noom colour system work?
Noom groups foods by calorie density. Green foods, such as most vegetables, fruits and whole grains, are the most filling for the fewest calories. Yellow foods, such as lean meats, fish and low-fat dairy, have more. Orange foods, such as chocolate, fries and processed meats, are the most calorie dense. Nothing is banned: the app suggests a daily balance across the three groups within your calorie range.
Is Noom just a calorie counter?
No, although calorie tracking is part of it. Noom Weight pairs a food log and daily calorie range with short psychology-based lessons, coaching and community support. The lessons are designed to help you understand triggers and habits behind your eating. If you only want to count calories and do not plan to use the lessons or coaching, a free tracker may be the better value.
Can I cancel Noom at any time?
You can cancel at any time, but Noom's terms say cancellation takes effect at the end of the current billing period, plans renew automatically, and fees are generally non-refundable outside specific legal rights or promotions. Trials convert to paid plans if not cancelled before they end. If you subscribed through Apple's or Google's app store, you must cancel there, under that store's own rules.
How fast will I lose weight with Noom?
Noom says its plans are built around a pace of about one to two pounds a week, which matches the CDC's guidance that gradual, steady loss is more likely to last. Individual results vary with your starting point, how consistently you log and how closely you follow the plan. Check any target with your doctor or a registered dietitian before you begin.
Is Noom safe for everyone?
Not necessarily. Reviewers warn that Noom's starting calorie goals can be low, and that daily weighing and tracking can be unhelpful for people with a history of disordered eating. If you are pregnant, have a chronic condition or have struggled with eating in the past, talk to a qualified health professional first. The app is a habit tool, not a substitute for individual care.