Forge is a free fitness app for iPhone and Android that puts your gym log, your calories and macros and your progress in one place. Built for strength, hypertrophy and body composition: log every set, hit your macros and see what's actually working.
Daily target
3,200 kcal
1,328 kcal left · 58% of goal
Steps
8,532
Water
2.1 L
Streak
8 wk
Forge in 30 seconds
A gym workout tracker, a calorie and macro counter and a progress tracker in a single app — so your training and your nutrition finally read from the same data.
Workout tracker
Build training programs, schedule them on your weekdays and record every set with weight, reps and effort. Forge keeps your full history, estimates your one-rep max and tracks personal records for every exercise.
Calorie & macro counter
Forge sets your daily calories and macros from your BMR and your goal, then makes logging quick: search a food, scan a barcode or pick one of your recipes and frequent meals. It adapts your numbers whether you're bulking, cutting or maintaining.
Progress tracking
Track body weight, measurements, progress photos, training volume and consistency. Trend charts and monthly summaries tell you whether your plan is actually working — and where to push next.
200+
exercises in the library
4
app languages: EN · ES · PT · DE
Health & recovery
With your permission, Forge reads steps, heart rate and sleep from Apple Health on iPhone or Health Connect on Android to add activity, recovery and fatigue context to your training. It only reads — it never writes to your health data — and that data is used only for fitness and general wellbeing, never sold.
One app instead of two
Most people who lift juggle a workout log and a calorie counter that never talk to each other. With both in Forge, a stalled bench press and a week under your protein target show up in the same place — so you can tell which one is holding you back.
| What you need | Forge | Typical workout log | Typical calorie counter |
|---|---|---|---|
| Set-by-set logging with weight, reps and RPE | Yes | Yes | Basic |
| Routines, program builder and weekly schedule | Yes | Yes | No |
| Progressive overload suggestions and 1RM estimates | Yes | Sometimes | No |
| Calorie and macro targets for bulking, cutting or maintaining | Yes | No | Yes |
| Food search, barcode scanner and recipes | Yes | No | Yes |
| Body weight, measurements and progress photos | Yes | Sometimes | Sometimes |
| Training, food and body data in one progress view | Yes | No | No |
"Typical" describes the usual scope of each kind of app, not any specific product. Switching from Hevy? Forge imports your workouts and measurements from its CSV export.
Forge Coach · AI
Once a week, Forge Coach reads what you actually did — weigh-ins, measurements, sets, effort and logged food — and adjusts your calories and training volume. Each decision points to one of 53 verified rules, every one with a DOI or PMID you can check yourself.
Forge Coach is rolling out in stages, in a higher tier. The rest of Forge works fully without it.
Free tools
No sign-up, and the same formulas the app uses — so the number you get here is the number you'll see inside Forge.
Your estimated max from any working set with the Epley formula, plus a 60–100% table.
Basal metabolic rate and daily expenditure with Mifflin-St Jeor, and targets for your goal.
Protein, carbs and fat in grams for bulking, cutting or maintenance.
Which plates to load on each side of the bar to hit an exact weight, in kg or lb.
Inside Forge
Built with focused, data-forward screens for people who take training seriously.
Plans
Start strong for free, then unlock deeper planning and automation when you're ready.
A complete free plan built for real consistency and measurable progress.
Free · forever, no ads
Advanced planning, smarter automation and premium social tools.
Premium · monthly or yearly
FAQ
Straight answers about the app, how it calculates your numbers and what happens to your data.
Forge is a fitness app for iPhone and Android that combines a gym workout tracker, a calorie and macro counter and progress tracking in one place. It's built for people who train for strength, hypertrophy or body composition, and it's made by Hive Interactive.
Yes. The free plan has no time limit and no ads, and it includes unlimited routines and custom exercises, set logging, progressive overload suggestions, calorie and macro targets, unlimited recipes, body measurements and social features.
Forged Premium is an optional monthly or yearly subscription that adds a meal planner, ingredient stock, food recommendations, advanced calorie auto-adjustment and a fatigue detector.
Yes — that's what Forge is built for. You log your sets and your meals in the same app, and the progress view puts training volume, personal records, body weight and measurements side by side, so you can tell whether a plateau comes from your training or from your nutrition.
Forge has a guided program builder for common splits such as push/pull/legs and upper/lower, and you can also build your own routines from a library of more than 200 exercises or your own custom ones. You can assign routines to weekdays, add supersets and plan rest and deload days. While you train, Forge suggests a heavier weight when you beat your target rep range.
Forge estimates your basal metabolic rate (BMR) with the Mifflin-St Jeor equation and multiplies it by an activity factor between 1.2 and 1.9 to get your daily expenditure (TDEE). For your goal, it adds or subtracts about 1,100 kcal a day for every kilo per week you want to gain or lose, based on 7,700 kcal per kilo of body weight.
By default, protein is set at 2.0 g and fat at 0.8 g per kilo of body weight, and carbohydrates fill the remaining calories. The free calorie calculator and macro calculator use the same formulas.
With the Epley formula — weight × (1 + reps ÷ 30) — applied to the sets you log, so you get an estimated 1RM for each exercise without testing a true max. The free 1RM calculator uses exactly the same formula.
Yes, if you allow it. On iPhone Forge reads from Apple Health, and on Android from Health Connect: steps, heart rate and sleep. It only reads, never writes, and that data is used only for fitness and general wellbeing features. It is never sold.
Yes, from Hevy. Export your data from Hevy as CSV and import your workouts and body measurements from Forge's settings, so your history and personal records come with you.
Yes. Forge Coach reviews your week and adjusts your calories and training volume, and every decision cites one of 53 verified rules, each with a DOI or PMID. It's rolling out in stages, in a higher tier, and the rest of Forge works fully without it. How the AI coach works.
The app is available in English, Spanish, Portuguese and German. This website is available in English, Spanish and Portuguese.
Your workouts, meals and measurements are saved on your phone first and synced to your account, so you can use Forge on more than one device. Forge doesn't sell personal data, and you can request the deletion of your account and data at any time from the account deletion page, which is also linked from the app's settings. Details are in the privacy policy.
Forge your prime
Forge gives you structure, data and a fast experience to train better, eat with more intention and progress with consistency. No shortcuts.
Social features
Train with friends
Add friends, share workouts, routines or PRs, compare lifts and train in a live party to stay motivated without losing focus. Healthy competition that keeps you showing up.
Ranking · total PR
This weekPush · 5 PRs 24,750
Legs · 3 PRs 21,300
Pull · 2 PRs 19,920
Bench press · 58 min ago
Press mark 180 kg — new total objective unlocked. 🔥