GainzTracker Log in

The gym log that tells you what to lift next

Log every set in seconds. GainzTracker remembers what you lifted last time and gives you the weight and reps to beat today. Diet, bodyweight and an AI diet planner are built in.

Start free for 30 days Log in

No card needed. Works on any phone or computer, nothing to install. Then £10 a year.

Everything a lifter needs to track
Training logYour exercises grouped by body part. Log weight and reps for every set with big buttons made for the gym, in kilograms or pounds.
It tells you what to liftEach set shows what you did last time and what to aim for today. Hit your top rep and the weight goes up. No spreadsheets, no guessing.
Diet trackerStart typing a food and pick it from a list of 633 foods with the calories, protein, carbs and fat filled in. See your day add up as you go.
AI diet plannerSet your calories and protein, tick the foods you like, and get a full day of eating built from them, meal by meal. Print it or make it your diet in one tap.
BodyweightLog your weight in two seconds and see how far you have come. Your targets can be worked out from it.
Make it yoursName it, pick your colours, set the text size. Write your weekly routine and training notes and see today's plan when you open it.
How it works
1. Add your exercisesGroup them by body part. Set your own rep range, number of sets and weight step for each one.
2. Log each setOpen the exercise, check the suggestion, adjust if you need to and tap once to save.
3. Beat last timeNext session the app sets the target: one more rep, or more weight once you reach the top of your range.
Free for 30 days. Then £10 a year. One payment, no automatic renewal, nothing to cancel. Everything is included: training, diet, the food list, the diet planner and bodyweight. Changed your mind? Full refund within 14 days of paying.
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Training basics, in plain English

Progressive overload

Muscle and strength come from asking your body to do a little more than it is used to. That is progressive overload, and it is the idea GainzTracker is built around.

The simplest way to do it is a rep range. Say 6 to 8 reps on bench press. You stay on the same weight and add a rep when you can. When you reach 8, you add the smallest plates you have and start again at 6.

Read the training articles

Sets and reps: where to start

Most people build muscle well with 2 to 4 hard sets per exercise. Lower reps, around 4 to 6, lean towards strength. Around 6 to 12 is the classic muscle-building range. Higher reps suit smaller muscles like calves and forearms.

What matters most is that the sets are hard, the form is good, and the numbers go up over the months. Pick a range, log it, and beat it.

Best exercises for each body part

How much protein?

A common rule of thumb for people who lift is about 1.6 to 2.2 grams of protein per kilogram of bodyweight a day, spread over your meals. For an 80 kg lifter that is roughly 130 to 175 grams.

The diet planner works a starting target out from your bodyweight and goal, and you can change it to suit you. If you have a health condition, check with your GP first.

Know your numbers

You do not need to test a true one rep max to know how strong you are. Lift a weight for a few good reps and a calculator can estimate it, which is safer and just as useful for planning.

Work out your one rep max or see how you rank against other lifters.

Free strength calculatorsSee all
How Strong Are You CalculatorSee how your best lift ranks against other lifters.One Rep Max CalculatorWork out your max for any lift from the weight and reps you did.Calorie CalculatorHow many calories you need a day to lose fat, stay the same or build muscle.Protein CalculatorHow much protein to eat a day for your bodyweight and goal.Macro CalculatorSplit your calories into protein, carbs and fat.Bench Press One Rep Max CalculatorEstimate your best single on the bench press.Squat One Rep Max CalculatorEstimate your best single on the squat.Deadlift One Rep Max CalculatorEstimate your best single on the deadlift.Overhead Press One Rep Max CalculatorEstimate your best single on the overhead press.
Build muscleAll body parts
Best exercises for chest Best exercises for back Best exercises for shoulders Best exercises for biceps Best exercises for triceps Best exercises for quads
Latest articlesAll articles
How Many Sets For Legs Per WeekHow Strong Are You Discover Your Strength With Our How Strong Are You CalculatorBest Exercises For More Shoulder MassBest Bicep Exercises For Mass Using Heavy Weights For Bigger ArmsBest Back Exercises For Mass Build A Stronger Wider BackBest Tricep Exercises For Mass: Build Bigger Arms
Questions people ask
Is it an app I have to install?
No. GainzTracker runs in your web browser, so it works on any phone, tablet or computer. Add it to your home screen and it opens like an app.
Do I need a card for the free trial?
No. You only need an email address and a password. Nothing is taken at the end of the trial. If you want to carry on, you pay £10 for the year yourself.
What happens when the trial or my year ends?
Your training log, diet and bodyweight history stay saved. You can log in and pay whenever you like, and everything is where you left it.
Can I use pounds instead of kilograms?
Yes. Choose kilograms or pounds when you join and change it any time in Settings.
Where do the food figures come from?
They are typical UK values, many produced by AI, so they are a good guide but your packet may differ. You can correct the figures on any food in your own diet.
Is the diet planner medical advice?
No. It is a planning tool for healthy adults who train. Targets are estimates you can change. If you have a health condition, speak to your GP before changing your diet.
Can I get a refund?
Yes, in full, if you ask within 14 days of paying. See the terms.
Who can see my data?
Only you. Your log is private to your account. The privacy notice explains exactly what is stored.
Track your own trainingLog your sets and get the weight and reps to beat next time. Free for 30 days.
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