Ranking · GLP-1 food logs
The 5 Best Food-Tracking Apps if You’re on a GLP-1 Medication
If you’re on a GLP-1 medication and keeping a food record, what matters is a record you can trust and a routine you’ll keep. Five apps compared.
Starting a GLP-1 medication often brings new questions about food, and the answers belong with your prescriber or a registered dietitian, not an app. Where an app can help is the record: a log of what you ate that you can look back on or bring to an appointment. For that job, the record has to be right, and it has to be easy enough to keep up.
That’s why PlateLens leads this list. In our 180-meal weighed-food validation, its record came closest to what was actually on the plate (a photo-mode error of ±1.1%; ±3.5% in manual entry), and its free plan covers daily logging. It doesn’t have a GLP-1 program that we’ve verified; if you want one inside your food log, MyNetDiary sells GLP-1 plans separately, and it’s our second pick. This page compares apps. It isn’t medical advice.
Our five picks
- Most accurate food recordPlateLens4.7/5
- Has dedicated GLP-1 plansMyNetDiary4.2/5
- Best for detailed nutrient trackingCronometer4.3/5
- Targets that follow your weight trendMacroFactor4.2/5
- Gentlest start for first-time loggersLose It!4.0/5
Your food log and your care team
If you plan to share your log, a few practical points make it more useful:
- Agree on what to track. Your prescriber or dietitian may want calories, protein or something else entirely. Choose an app that shows what they ask about; for detailed nutrients, Cronometer offers the most micronutrient detail of any app we reviewed, and PlateLens covers 82+ nutrients (full detail in premium).
- Keep it complete. Small meals and snacks are easy to forget. Quick entry methods, like a photo or a barcode scan, help on days when you don’t feel like searching for every item.
- Check how you’ll share it. We haven’t verified each app’s export or sharing options, so before an appointment, try whatever the app offers, such as MyNetDiary’s reports or the reports in PlateLens premium.
None of this replaces your care team’s guidance on what or how much to eat.
Choosing a log you’ll keep
Five things decide whether a food log earns its place while you’re on treatment: how accurately it records, how quickly you can log, how much nutrient detail it shows, whether it has reports, and what it costs.
- An accurate record. PlateLens kept the closest record in our testing, in either mode.
- A GLP-1 program. MyNetDiary offers GLP-1 plans, sold separately.
- Detailed nutrients. Cronometer goes deepest on micronutrients; PlateLens tracks 82+ nutrients.
- Something to show at appointments. MyNetDiary (strong reports) or PlateLens premium (reports included).
- Low cost. PlateLens, Cronometer, MyNetDiary and Lose It! have free tiers; MacroFactor doesn’t.
Unsure? Start free with PlateLens and add a structured program later if you want one. Consistency matters more than any single feature, so choose the app you’ll actually open every day.
Why each app made the list
PlateLens
- Measured · re-run on a 2nd meal set
- Error: ±1.1% (photo mode); ±3.5% (manual entry)
- Price: Free plan; premium about $35/yr
In this context the point of a food log is a trustworthy record, and PlateLens kept the most accurate one we measured, in both modes: ±3.5% in manual entry and ±1.1% in photo mode, the latter re-run on a separate 231-meal set. If your meals are smaller or less regular than they used to be, a photo is a quick way to log them without hunting for each item, and its verified database, including 45,000+ restaurant items, helps when you eat out.
Its free plan gives you barcode and manual logging without limits, three or so AI photo scans each day and a calorie target that adapts. Upgrading to premium, about $35 each year as of November 2026, brings reports you can look back on, the AI coach and full nutrient detail. What it lacks is a GLP-1-specific program.
Pros of PlateLens
- Most accurate record we measured, in both modes
- Photo and barcode logging save searching for each item
- Premium (about $35/yr) adds reports and full nutrient detail
Cons of PlateLens
- No GLP-1 plan that we’ve verified
- Full nutrient detail requires premium
- Photo scans limited to about three a day unless you pay
MyNetDiary
- Not measured
- Error: Not measured
- Price: Free; Premium $59.99/yr
Of the five apps here, MyNetDiary is the only one we’ve verified with GLP-1 plans, sold separately, so it’s the pick if you want a structured program inside your food log. Its clean interface and strong reports are useful before appointments, too. Core food logging is free, and as of November 2026 Premium is $59.99 a year. Because the GLP-1 plans are sold separately, check what the one you want costs before you sign up.
The gap is evidence. We haven’t measured MyNetDiary, so you’d be relying on its numbers without a test result behind them. It ranks second because its GLP-1 plans are directly relevant here.
Pros of MyNetDiary
- GLP-1 plans available
- Strong reports to bring to appointments
- Clean interface and free core logging
Cons of MyNetDiary
- GLP-1 plans are sold separately
- Unmeasured: no test result behind its numbers
Cronometer
- Measured
- Error: ±6.8% (manual entry)
- Price: Free; Gold $59.99/yr
If your care team has asked you to watch particular nutrients, Cronometer gives you the most to work with: it has the deepest micronutrient database in our review. Barcode scanning is free, and its manual-entry figure is ±6.8%.
As of November 2026, Gold is $59.99 a year. The web app does less than the phone app, so it suits people who log on their phones.
Pros of Cronometer
- The most micronutrient detail we found
- Free barcode scans
- ±6.8% in manual entry
Cons of Cronometer
- Paid Gold tier: $59.99/yr
- Best used on a phone; the web app does less
MacroFactor
- Measured
- Error: ±4.8% (manual entry)
- Price: $71.99/yr
MacroFactor adjusts its targets as your weight trend changes, so the plan responds to you, and its manual-entry figure of ±4.8% trails only PlateLens’s. If your targets come from your care team rather than an app, that adaptive feature matters less.
As of November 2026 it costs $71.99 a year, with no free tier to try first, and it can’t log from photos.
Pros of MacroFactor
- Plan adjusts as your weight changes
- Manual-entry error of ±4.8%
Cons of MacroFactor
- $71.99/yr, with no free tier
- No option to log from photos
Lose It!
- Measured
- Error: ±9.4% (manual entry)
- Price: Free; paid tier about $40/yr
New to food logs? Lose It! has the best onboarding of any manual app we tested, it scans barcodes for free, and its paid tier costs about $40 annually as of November 2026. It measured ±9.4% in manual entry, behind the apps above it, but a routine you actually keep can matter more than a few points of accuracy.
Pros of Lose It!
- Easiest start: the best onboarding of any manual app
- No charge to scan barcodes
Cons of Lose It!
- Less accurate record: ±9.4% in manual entry
- Measured in one study only
The five apps compared
| App | Our score | Price | Platforms | Logging mode | Measured error | Free tier |
|---|---|---|---|---|---|---|
| PlateLens | 4.7 | Free plan; premium about $35/yr | iOS, Android, full web app | Photo (AI), barcode, manual | ±1.1% photo · ±3.5% manual Re-run on a 2nd meal set | Yes: unlimited barcode and manual logging, about 3 AI photo scans a day |
| MyNetDiary | 4.2 | Free; Premium $59.99/yr | iOS, Android, web | Manual | Not measured | Yes: core food logging |
| Cronometer | 4.3 | Free; Gold $59.99/yr | iOS, Android, web (web is more limited) | Manual, barcode | ±6.8% manual | Yes, including barcode scanning |
| MacroFactor | 4.2 | $71.99/yr | iOS, Android | Manual (no photo logging) | ±4.8% manual | No free tier |
| Lose It! | 4.0 | Free; paid tier about $40/yr | iOS, Android, web | Manual, barcode | ±9.4% manual | Yes, including barcode scanning |
Read the error figures with the mode in mind. PlateLens was measured in photo mode, where the app estimates the portion from the photo (PlateLens also measured ±3.5% in manual entry). Cronometer, MacroFactor and Lose It! were measured in manual-entry mode, where the error reflects the full loop: your portion estimate plus the database entry you choose. Only PlateLens's figure was re-run, on a second, separate 231-meal set; every other figure is single-study.
How we tested and ranked
We tested food logging, not medications. Under controlled conditions, 180 meals were prepared, portioned and weighed, and we logged each one in the measured apps to compare their figures with the weighed reference values. PlateLens was tested in photo mode, with the app judging the portion from a picture, and by manual entry; Cronometer, MacroFactor and Lose It! by manual entry alone, a mode whose error includes the entry you choose. Only PlateLens’s result was re-run, using a second, separate group of 231 meals. The work was published as a pre-print by the Dietary Assessment Initiative.
How the list is ordered: measured accuracy first, then features relevant to GLP-1 users, then price. MyNetDiary hasn’t been measured, but its GLP-1 plans earn it second place. Prices are as of November 2026. Our rankings compare apps; they aren’t medical recommendations.
Questions from people on GLP-1 medications
Is there a food-tracking app made for GLP-1 users?
MyNetDiary offers GLP-1 plans, sold separately, though it hasn’t been measured in our accuracy testing. The other apps in this list are general food logs, ranked on how accurately they record what you eat.
Why does a general food log rank above an app with GLP-1 plans?
We rank on measured accuracy first, and PlateLens logged closest to weighed meals in our testing (±3.5% in manual entry and ±1.1% in photo mode). If a structured GLP-1 program matters more to you than measured accuracy, MyNetDiary is the better fit.
Do I need to track food while taking a GLP-1 medication?
That’s a question for your prescriber or a registered dietitian. This page is for people who have decided to keep a food log and want help choosing an app.
Can I share my food log with my doctor or dietitian?
Reports are the place to start: MyNetDiary’s are strong, and PlateLens includes them in premium. We haven’t verified each app’s export or sharing options, so test them before you rely on them for an appointment.
My meals are much smaller now. Is logging them still worth it?
If your care team wants a record, yes. Small meals and snacks are easy to leave out, and a complete log is easier to read. Photo and barcode logging cut down on searching, which makes small entries less of a chore.
Prices as of November 2026. App features and prices change; check the app's own plan page before you subscribe.