Comparison

FOURM40 vs Forge Trainer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FOURM40

Features
Read full description

With the FOURM 4.0 App, you’ll have access to high-performance coaching designed to help you build strength, boost energy, and optimize your life. Follow and track your workouts, nutrition, habits, progress, and results — all with direct support from your coach. FEATURES: Access personalized training plans and log your workouts Follow along with guided exercise videos Track your meals and make smarter nutrition decisions Stay consistent with daily habit tracking Set goals and monitor real progress toward them Earn milestone badges as you hit new personal bests and maintain streaks Message your coach directly for real-time support Track body metrics and upload progress photos Get push notifications for upcoming workouts and habits Sync with Apple Watch to track workouts, steps, habits, and more Connect with Apple Health, Garmin, Fitbit, MyFitnessPal and other devices to pull in sleep, activity, nutrition, and body composition data Download the app today and start leveling up your performance.

About

Forge Trainer

This app creates personalized strength training and workout plans tailored to your goals, schedule, equipment, and physical limitations. It offers proactive coaching and accountability, adapting as you progress, for a fraction of the cost of a personal trainer.

Highlights
  • Customized workout plans
  • AI-powered progression tracking
  • Adaptable to injuries and limitations
  • Proactive coaching and accountability
  • Choice of coaching styles
  • Time-efficient workouts
Features
Read full description

Build muscle and get stronger with a customized workout plan. Forge is a personal trainer that builds every strength training session around you: your fitness goals, your schedule, your experience, your equipment, your injuries. Home workouts or gym days, the plan fits the equipment in front of you and adapts every week as you progress. Ask your coach anything, any time. Form checks mid-set. The 7am question about training on five hours of sleep. Answers come back in seconds, from a coach that remembers everything you tell it. Other apps ignore questions or email back a day later. A human trainer charges $75-150 an hour. A year of Forge costs less than that. Every rep gets logged, every PR recorded. Whether you train to build muscle or lose weight, watch your progress climb with strength trends for every lift and a body weight chart, all on a dashboard you can customize. Every exercise comes with step-by-step instructions and a visual demo. Download Forge today and start your free 7-day trial. FORGE FEATURES Personalized Workout Plans ◆ Custom workout plan built from your goals, schedule, equipment, and injuries ◆ Sessions sized to the time you have, even 20 minutes ◆ Separate home and gym profiles, with targets set to the weights you actually have access to ◆ Programs around injuries and remembers them for good A Coach You Can Talk To ◆ Answers questions in seconds, mid-set if that's when you ask ◆ Remembers everything you tell it, from bad sleep to old injuries ◆ Checks in when you skip a few workouts ◆ Choose your coach's personality: drill sergeant, patient encourager, gym buddy, technique nerd Built for the Gym Floor ◆ Gym missing a machine? Mark it and your coach swaps in a lift you can do there ◆ Rest timer on your lock screen and a plate loader that shows what goes on each side of the bar Exercise Library ◆ Step-by-step exercise instructions with visual demos for every movement ◆ New lifts feel safe from the first rep Progress Tracking ◆ Every rep logged, with your best lifts on one PR board ◆ Watch any lift climb over time, or track your squat, bench, and deadlift as one total ◆ Log weigh-ins and watch your body weight trend ◆ Customize your dashboard with the stats you care about ASK YOUR COACH ANYTHING 7:04am, before work: You: "Rough night. Slept 5 hours. Should I still lift today?" Your coach: "Yes, lighter though. I cut today's volume by a third and moved the heavy squats to Saturday." PICK YOUR COACH The same advice lands differently depending on who says it. Choose yours: • Stone: ex-military. Tough love, zero excuses. • Maya: patient and supportive. Celebrates every win, especially the small ones. • Mike: your gym buddy. Keeps training fun so you keep showing up. • Reese: data-driven, technique-obsessed. All business, all progress. WHAT LIFTERS SAY "Before I was lost in the gym, wandering around picking up weights and working on machines that I thought were correct. Now I have a real plan that adapts to my goals and my time." "Does a great job at giving me new workouts and reminding me of last weeks progress. Letting me know how my progression is going." "I used to waste so much time wandering around the gym wondering what to do next, but this app completely eliminates that decision fatigue." Forge offers auto-renewing weekly, monthly, and yearly subscriptions, starting with a free 7-day trial. Payment is charged to your store account after the trial ends. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your account settings. Questions? support@forgetrainer.ai Terms of Use: https://forgetrainer.ai/terms-of-service Privacy Policy: https://forgetrainer.ai/privacy-policy

Screenshots

FOURM404 screens
Forge Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: FOURM40 at none against Forge Trainer's 5. FOURM40 also leads on ads (none vs shown) and device support (4 vs 2). Forge Trainer's advantage is update cadence (every 2 weeks vs every 2 months). On price and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Forge Trainer sells 5 in-app purchases, starting at $6.99 per 7 days. FOURM40 asks for nothing beyond the download.

UpkeepUpdate frequency

FOURM40 ships an update every 2 months, Forge Trainer every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
FOURM40 versus Forge Trainer: the parameters behind the verdict, then further details
ParameterFOURM40Forge Trainer
PriceFreeFree
Rating—5.0 (13 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—13 — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size200 MB109 MB
Age rating4+17+
DeveloperFOURM40 LLC10D Labs Limited Liability Company

In-app purchases

None

FOURM40

No in-app purchases

5 purchases

Forge Trainer

Subscriptions5
  • Weekly7 Days trial$6.997 Days
  • Monthly$14.991 Month
  • Monthly7 Days trial$19.991 Month
Show 2 more
  • Yearly$44.991 Year
  • Yearly7 Days trial$59.991 Year

Questions

Is FOURM40 free?
FOURM40 is free to download, with no in-app purchases.
Is Forge Trainer free?
Forge Trainer is free to download, with in-app purchases available.
Do FOURM40 or Forge Trainer have ads?
Forge Trainer shows ads; FOURM40 does not.
Which is updated more often, FOURM40 or Forge Trainer?
FOURM40 ships an update every 2 months, and Forge Trainer every 2 weeks. Most recently, FOURM40 was updated on October 30, 2026 and Forge Trainer on October 31, 2026.

Other comparisons