Penng vs 4TRAINER
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Penng
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Penng.ai is your all-in-one solution to personalized health, fitness, and lifestyle management. Whether you're looking to lose weight, build muscle, or optimise your sleep, Penng creates a tailored daily plan specifically for you. What Penng Offers: Calorie & Macronutrient Tracking: Easily log meals, monitor macros, and stay within your daily targets. Sleep & Activity Tracking: Seamless integration with our proprietary Penng Band ensures your sleep and physical activities are accurately recorded and analyzed. Comprehensive Onboarding: Detailed, guided setup covering demographics, fitness goals, lifestyle habits, and personal motivations to precisely tailor your plan. Penng Band Integration: Enhance your tracking experience with our dedicated wearable, providing deeper insights and automated activity logging. Flexible Subscriptions: Access the app features with our subscription model or enjoy complimentary access through ownership of a Penng Band. Join many already benefiting from Penngβs sophisticated health solutions, designed to help you reach your goals smarter and faster.
4TRAINER
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You got into personal training to coach people. Your job should not be to chase unpaid invoices, rebuild session spreadsheets, or piece together what a client did three weeks ago from a WhatsApp thread. But that's what most of your admin ends up being. 4Trainer is built to fix that. One platform that keeps your clients, sessions, programs, invoices, and revenue in sync - so you always know what you've sold, what you've delivered, and what you're owed. What's inside: - Sessions & invoicing - bill clients, log session credits, and track exactly what's been paid and what's still outstanding. No more end-of-month guesswork. - Your calendar - schedule sessions, mark attendance, and see your full week at a glance. - Programming - build templates and training plans from your exercise library, log sets, reps, and weight each session, and get flagged automatically when a session's been repeated so your programming stays fresh. - Revenue tracking - log income and expenses and see how your business is actually performing. No social feeds. No gamification. No fitness influencer nonsense. Just a clean, fast tool built by a trainer, for trainers who treat this like the business it is. *Founder's note: I built 4Trainer because nothing else did what I needed. My entire business runs on it - and now yours can too.* *Subscription required for full access. 14-day free trial included with monthly plan. Monthly, 3-month, 6-month, and 12-month plans available. Payment is charged to the Apple ID at purchase confirmation. Auto-renews unless cancelled at least 24 hours before period end. Manage subscriptions in Apple ID Account Settings. Please refer to our Terms of Use: https://4trainer.io/terms | Privacy Policy: https://4trainer.io/privacy.
Screenshots
Verdict
The clearest difference is in-app purchases: Penng at none against 4TRAINER's 4. 4TRAINER's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. 4TRAINER sells 4 in-app purchases, starting at $49.99 per month. Penng asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.
| Parameter | Penng | 4TRAINER |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 16.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 219 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Fehrsen | Racquel Nina Dennison |
In-app purchases
Penng
No in-app purchases
4TRAINER
- Standard monthly subscription14 Days trial$49.991 Month
- Three month subscription$129.993 Months
- Six month subscription$244.996 Months
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- Annual Subscription$449.991 Year





