Best Fiber Tracker Apps for iPhone (2026)

For an app built only around fiber, FiberUp is the top pick: it scans barcodes, counts plant variety, and has no subscription. If you want the most accurate numbers, Cronometer is the best full-diet option. If you would rather photograph your plate than search for it, Proto logs fastest. MyFitnessPal has the most foods, but fiber gets buried among dozens of other numbers. I build a fiber app called Grove, so I left it out of the ranking and gave it its own labelled box below.

Most people who go looking for a fiber tracker start in the wrong place. They open MyFitnessPal, log a few meals, and realize fiber is one tiny row three screens deep, sitting under calories, protein, and a wall of macros they were not trying to count. That works if you want to track everything. It is frustrating if you just want to know whether you hit your fiber goal today.

So the useful question is which app is built around fiber. Below is an honest look at the options on iPhone in 2026, including where each one wins and where it falls short.

What makes a good fiber tracker app?

Before the roundup, here is the short list of what actually matters when you are counting fiber specifically:

• A real food database. Fiber counts are useless if the app is guessing. Look for apps built on USDA data, not crowdsourced entries.
• Fast logging. You will only track long term if adding a food takes seconds. Barcode scanning, photo logging, and natural serving sizes all help here.
• A daily fiber goal you can trust. 38 grams for men and 25 for women is the baseline. See how much fiber you need per day for the full breakdown.
• A reason to come back. Streaks, trends, or symptom feedback keep you logging past week one.

No single app nails all four. Here is how the main contenders stack up.

Comparison table: fiber tracker apps at a glance

Our own app, Grove, is not in this table. It has its own box further down.

1. Best dedicated fiber app: FiberUp

FiberUp is built around fiber rather than calories, and it has a feature most trackers skip: a plant-count tracker that nudges you toward eating a wider variety of plants. That is a smart proxy for gut health, and it gets its own scoreboard rather than being folded into your gram total. FiberUp also has a clean progress ring, scans barcodes, and has no subscription at all, which for some people is the whole selling point. Our Grove vs FiberUp comparison goes feature by feature.

The tradeoff is the database. FiberUp is built on roughly 120 USDA foods. That covers the basics, but if you eat a lot of whole or less common foods, you will hit the edges of that list quickly. Pick FiberUp if plant variety and no subscription matter more to you than database depth.

2. Most accurate: Cronometer

Cronometer is the choice for people who want to track everything with precision. Its food data is lab-grade, it covers dozens of micronutrients, and it lets you export your data, which matters if you are working with a dietitian or managing a health condition.

The catch, for fiber specifically, is focus. Fiber is one of many nutrients in Cronometer, not the main event. You get accuracy, but you also get a dense dashboard where fiber competes for attention with vitamins, minerals, amino acids, and more. If you love detail, you will love Cronometer. If you only care about fiber, it is more app than you need, which the Grove vs Cronometer matchup spells out.

3. Fastest to log: Proto

Proto tracks both protein and fiber, and its headline feature is speed. Instead of searching for foods, you photograph your plate and its computer vision estimates what is on it. For anyone who has abandoned tracking because searching felt like a chore, this is a real answer to the friction problem. It also has a progress bar, reminders, and saved meals for repeat offenders like your usual breakfast.

The tradeoff with any photo-based logging is precision. A camera estimate of the fiber in your lunch is a smart guess, not a lab measurement, and portion sizes are hard to read from an image. If you want the fastest possible logging and can accept approximate numbers, Proto is excellent. If you want exact fiber counts, a database-driven app will serve you better. Grove vs Proto compares the two ways of logging.

4. Biggest food catalog: MyFitnessPal

MyFitnessPal has the largest food catalog here, north of 11 million entries, and almost anything you eat is already in it. That reach is the whole appeal.

But MyFitnessPal is a calorie app first. Fiber is buried among the macros, tracking it well often requires a paid tier, and the crowdsourced database means fiber numbers vary in quality from entry to entry. If you are already a MyFitnessPal user and just want to keep an eye on fiber, you can. If fiber is your actual goal, a dedicated tracker will make the number a lot easier to see and hit, and Grove vs MyFitnessPal walks through the difference.

Our app: Grove (not ranked)

Which fiber tracker should you choose?

Here is the honest decision, stripped down:

• You want an app built around fiber, with plant-variety counting and no subscription: FiberUp.
• You want clinical-grade nutrient tracking and data export: Cronometer.
• You want to log by taking a photo: Proto.
• You want to track your entire diet, fiber included: Cronometer or MyFitnessPal.
• You want fiber tracking plus a daily gut check-in, and a subscription is fine: Grove, our app (see the box above).

None of these is the "best" for everyone. The best fiber tracker app is the one whose logging style you will still be using in a month. Once you have picked one, the next step is knowing what to actually eat. Start with our list of high-fiber foods and the fibermaxxing guide if you want to seriously push your intake up.

Frequently asked questions

What is the best fiber tracker app for iPhone?

For an app built only around fiber, FiberUp is our top-ranked pick, thanks to barcode scanning, plant-variety counting, and no subscription. Cronometer is the most accurate if you want full-diet tracking, and Proto is best if you prefer to log by photo. We also make a fiber app, Grove, which we left out of the ranking.

Is there an app that only tracks fiber?

Yes. FiberUp and Grove (our app) are both dedicated fiber apps rather than calorie counters with a fiber field. FiberUp uses a smaller food list but counts plant variety. Grove searches the USDA database and adds a daily gut check-in.

Can I track fiber in MyFitnessPal or Cronometer?

You can. Both track fiber as part of full-diet logging. The downside is that fiber sits among dozens of other nutrients, so it is harder to see at a glance. Cronometer is more accurate, MyFitnessPal has more foods, and neither is built around fiber the way a dedicated app is. MyNetDiary is a third full-diet option, covered in Grove vs MyNetDiary.

Which fiber app has barcode scanning?

FiberUp scans barcodes, and so does our app, Grove. Either one is fast for logging packaged foods.

How much fiber should I be tracking toward each day?

The Institute of Medicine recommends about 25 grams per day for women and 38 grams for men, though your ideal target varies with age and calorie intake. Most Americans get only about half that. See our guide on how much fiber you need per day for the full picture.

Do fiber tracker apps cost money?

Mostly, yes. FiberUp has no subscription. Proto, Cronometer, and MyFitnessPal have paid tiers that unlock deeper history and insights. Our app, Grove, runs on a Grove+ subscription: $7.99 per month or $49.99 per year. You get the whole app for 7 days with no card before you pick a plan.

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If you want to try our app, Grove, you get the whole app for 7 days with no card, and Grove has no account and no server storing your log. Get Grove for iPhone.