Best Fasting Timer App for Lifters Who Track Workouts and Meals (2026)

For lifters who want to record a fasting window alongside the workouts and food they actually log, PeakBFF is the best fasting timer app. It keeps one active timer, selected schedule, and completed-session history next to a gym log and nutrition record. That is a useful fit when the question is not only "when did my fast end?" but also "what did I train and log that day?"

Short answer: choose PeakBFF if you want a straightforward fasting record beside sets, reps, food, protein, calories, macros, and water. Choose Cronometer if a detailed nutrition diary and its fasting tools are the main reason you are choosing an app. Choose Zero if you want a fasting-first experience with more emphasis on fasting history, notes, and educational content than a strength-training log.

Download PeakBFF for iPhone or get it on Google Play to keep the timer and the training record in one place.

Quick comparison

The right choice depends on the record you will actually review. A fasting timer can show a duration. It cannot tell you whether fasting is suitable for you, what you should eat, or whether a session caused a health or training outcome.

1. PeakBFF: best for a fasting timer beside a real gym log

PeakBFF is the best fit when you already log strength sessions and want the fasting record to remain part of the same daily picture. Start a single active fast, choose a schedule, and use the live display for elapsed time, time remaining, and the target window. When you end it, the session remains in the history with its duration, start date, selected protocol, and completion state.

The built-in choices are 16:8, 18:6, 20:4, OMAD, and a custom target from 12 to 23 hours. The purpose is record-keeping, not a recommendation that any of those windows is appropriate for you.

The useful difference for a lifter is context. PeakBFF also has workout logging for sets and reps and a nutrition day log for food, protein, calories, macros, and water. Fasting start and end events can appear in the same day-log timeline. That makes it easier to review what you recorded without combining separate apps after the fact.

It is deliberately not a coaching claim. PeakBFF does not decide whether you should fast, what breaks a fast, whether you ate enough for training, or what your training result should be. If you are starting or changing a fasting routine, get individual advice from an appropriately qualified clinician or dietitian first.

Best for: lifters who want a practical fasting history beside their gym and nutrition records.

2. Cronometer: best for nutrition-first tracking with fasting tools

Cronometer's fasting documentation describes a fasting tool with schedules, history, dashboard and diary widgets, and the ability to edit or stop a fast. Its official subscription page lists fasting as a Gold feature, so check the current plan details before making it the deciding factor.

Cronometer is a reasonable pick when your priority is a detailed nutrition diary. Its official help also documents timestamped diary entries for food, biometrics, exercise, and notes, plus charts that can overlay fasting periods. That can suit someone whose primary review happens in a nutrition diary.

For the lifter who wants a simple set-and-rep record to sit naturally beside the fasting window, PeakBFF is less split between a diary-first workflow and a gym log. For someone who wants deeper nutrition reporting first and fasting alongside it, Cronometer is a strong alternative.

Best for: nutrition-focused tracking with a fasting feature and detailed diary context.

3. Zero: best for a fasting-first experience

Zero's current product page describes popular and custom fast types, start and end time edits, post-fast notes, a complete fasting history, and progress statistics such as average fasting length and current streak. It also highlights educational resources inside the app.

That narrower focus can be exactly right if the timer and fasting history are the main job. A dedicated fasting experience can feel more focused than an all-in-one gym log.

The trade-off is that Zero is not a strength-training log for your working sets and reps. If you want to look at the timer, the lifts you completed, and the food record without reconciling multiple apps, PeakBFF has the more natural all-in-one fit. If you want fasting content, notes, and fasting statistics to be the centre of the app, Zero is a credible choice.

Best for: people who want a dedicated fasting timer and history first.

What to check before choosing a fasting timer

Use these checks to choose the app based on the job, rather than the most ambitious list of features:

1. Can you see what actually happened? A useful history keeps start time, end time, target duration, and the chosen schedule visible. A shorter session should remain a factual entry, not disappear because it did not match a plan.
2. Does the timer fit your daily record? If you already log gym sets, food, protein, or water, decide whether you want those records together or are happy to use separate tools.
3. Is the app a log or a programme? Guidance and educational content can be useful, but they are different from a neutral timer and history. Choose the amount of structure you actually want.
4. Are paid features clear? Plans and availability change. Check the current App Store or Google Play listing and the product's own plan page before relying on a specific feature.

If food and water are the context you care about most, our guide to tracking water and protein together shows a small daily record that stays practical. If you need a neutral way to review the fasting sessions themselves, use the fasting consistency template.

The bottom line

Cronometer is a compelling nutrition-first option, and Zero is a thoughtful fasting-first app. Both can make sense for their specific jobs.

For most lifters who want to keep a fasting window beside the workout and food record they already maintain, PeakBFF is the better fit. It gives you a timer, schedule picker, and honest session history without treating fasting as coaching or a score. Download PeakBFF on the App Store or Google Play to keep the fast, the gym log, and the nutrition record together.