The 5 best free fiber tracking apps
Here's the annoying thing about tracking fiber: nearly every major nutrition app knows the fiber content of every food in its database and shows you calories instead. Fiber lives one or two taps deeper, and on several apps the ability to put it on your main dashboard is a paid feature. These five let you actually see the number without paying.
Quick Answer
The best genuinely free fiber tracking apps are FiberUp (fiber-first, free, barcode scanning), Cronometer's free tier (the most complete nutrient data of any free app), MyFitnessPal free (fiber is visible in the Nutrition tab, but promoting it to your main dashboard needs Premium), Lose It free (similar - fiber viewable, dashboard customisation is paid), and Apple Health (free, but you have to enter fiber manually or feed it from another app).
Why fiber is hard to track in a calorie app
Calorie apps are built around one number. Everything else - protein, sugar, sodium, fiber - is a secondary field, and the interface reflects that. Three specific problems come up:
- Fiber is buried. It's in the data, but you tap into a nutrient breakdown to see it rather than glancing at a ring.
- Dashboard slots cost money. Several major apps let you choose which nutrients appear on the main screen only on a paid tier.
- Crowdsourced entries are unreliable for fiber. User-submitted foods often have calories and macros filled in and fiber left at zero, which quietly undercounts you all day.
That last one matters more than people realise. If a third of your entries say 0g fiber because someone couldn't be bothered, your daily total is fiction.
The five, compared
| App | Fiber on main screen, free? | Barcode scan | Best for |
|---|---|---|---|
| FiberUp | Yes - it's the whole app | Yes | Tracking fiber specifically |
| Cronometer | Yes, in the nutrient panel | Yes (free tier) | Full micronutrient detail |
| MyFitnessPal | Viewable, dashboard slot is Premium | Premium on current versions | Biggest food database |
| Lose It | Viewable, customisation is paid | Yes | Weight loss first |
| Apple Health | Yes, if something writes to it | No | Central store for other apps' data |
1. FiberUp - free, and fiber is the point
Built for one job, so nothing is buried. Open it, tap a food or scan a barcode, and the number you came for is the number on the screen. It also tracks plant variety - the count of distinct plants you've eaten this week - which is a better predictor of gut microbiome diversity than grams alone and which no calorie app measures at all.
The trade-off is honest: it isn't a calorie tracker. If you want one app for everything, look at Cronometer. If you've tried logging everything and quit after nine days like most people do, a single-purpose tracker you'll actually keep using beats a comprehensive one you won't.
2. Cronometer (free tier) - the most data for nothing
Cronometer's free tier is unusually generous: full micronutrient breakdown including fiber, and a food database sourced substantially from USDA and NCCDB rather than pure crowdsourcing, which means fiber values are much more likely to be correct. If you want to track fiber alongside forty other nutrients and you don't mind a denser interface, this is the strongest free all-rounder.
3. MyFitnessPal (free tier) - big database, buried number
The largest food database in the category, and fiber is visible in the Nutrition section of your diary on the free tier. What free doesn't get you on current versions is putting fiber on your main dashboard in place of a default macro, and barcode scanning has moved behind Premium. Workable, but you're swimming against the interface. Step-by-step in how to track fiber in MyFitnessPal.
4. Lose It (free tier) - fine if you're already using it
Similar shape to MyFitnessPal: fiber is in the data, deeper customisation is paid. No reason to switch to it for fiber specifically, but no reason to leave it either if it's already your logging habit - and an existing habit beats a better app you don't open.
5. Apple Health - the free hub
Health has a Fiber field under Nutrition, and it's free forever. Two ways to use it: enter meals manually (tedious, but fine if you eat similar things), or let another app write fiber into it so everything lands in one place alongside weight, sleep, and activity. Useful as a store; painful as your only logging interface.
What to actually look for in a free fiber tracker
Four things that decide whether you'll still be using it in a month
Fiber visible without tapping in. If seeing your number takes three taps, you'll stop checking, and unchecked numbers don't change behavior.
Trustworthy data. USDA-sourced values beat crowdsourced ones, especially for fiber, where user entries are frequently left at zero.
Fast logging. Barcode scan or a short list of your regulars. Anything over ten seconds a meal loses to inertia.
Plant variety, if offered. Thirty distinct plants a week is a genuinely useful second target and almost nothing tracks it.
Do you even need an app?
Honest answer: for two to four weeks, yes - and after that, maybe not. Almost nobody can estimate fiber intuitively, because the foods that contain it are wildly uneven (a cup of black beans has more than a whole day of "eating pretty healthy"). Tracking for a month calibrates you. After that most people carry the intuition and only re-check occasionally.
That's the goal of tracking, and it's why a free app is usually the right call. See what 30 days of tracking actually changes.
Frequently Asked Questions
What is the best free app to track fiber?
For fiber specifically, FiberUp is free and puts the number on the main screen instead of burying it, plus it tracks weekly plant variety. For a free all-round nutrient tracker, Cronometer's free tier gives the most complete data with better-sourced fiber values than crowdsourced databases. Both avoid the main problem with general calorie apps, which is that fiber is a secondary field you have to dig for.
Does MyFitnessPal show fiber for free?
Yes - fiber appears in the Nutrition section of your diary on the free tier. What the free tier doesn't give you on current versions is the ability to put fiber on your main dashboard in place of a default macro, and barcode scanning has moved behind Premium. You can track fiber without paying; you just have to tap into the nutrient view each time rather than seeing it at a glance.
Are free nutrition apps accurate for fiber?
It depends entirely on the database. Apps sourcing from USDA data give reliable fiber values; apps relying heavily on user-submitted entries often have fiber left at zero because whoever added the food filled in calories and stopped. If a food you log frequently shows 0g fiber and you know it shouldn't, find a better entry or correct it - otherwise your daily total is quietly wrong all month.
Do I need to track fiber forever?
Almost certainly not. Two to four weeks of tracking is usually enough to calibrate your intuition, because fiber content is so uneven across foods that most people badly misjudge it until they've seen the numbers. After a month you'll know which of your regular meals are carrying you and which are contributing nothing, and periodic spot-checks are enough to stay on target.
Related Articles
- 7 Best Fiber Tracker Apps for iPhone
- How to Track Fiber in MyFitnessPal
- Fiber Calculator: How Much Fiber Do You Need?
- What Happened When I Tracked Fiber for 30 Days
- How to Read Nutrition Labels for Fiber
- The High-Fiber Foods List
Scope
This article compares apps based on their publicly described features as of August 2026. Features, pricing, and free-tier limits change often - check the App Store listing before deciding. FiberUp is made by the author of this site. Nutrition information here is general and not medical advice.