Online Coaches Pay $95/Month for 50 Clients. The Only Unlimited Plan With Payments Costs $99. Nobody Built the $39 Version.

Executive Summary

• The gap: Online personal trainers with 30-100 clients pay $90-245/month on per-client pricing. The only unlimited flat-rate option with integrated payments costs $99/month. A purpose-built $39/month tool combining workout programming, client payments, and progress tracking does not exist.
• The customer: Online fitness coaches managing 20-100 remote clients, charging $100-300/month per client. They need programming software with integrated billing but currently hack together multiple apps or pay 2.5x what a fair price would be.
• The market: 740,000 personal trainers worldwide, 86% of top earners now work online. The personal trainer software market was $780M in 2025, projected to $1.85B by 2033 at 11% CAGR.
• The build: Medium difficulty. 5-6 weeks for an MVP combining workout programming, Stripe billing, client portal, and basic progress tracking. Core features are well-understood.
• Revenue potential: Conservative MRR of $7,800-39,000 achievable within 12-18 months targeting coaches who have outgrown per-client pricing.
• First move: Build in public in the r/personaltraining community. Offer a lifetime deal to the first 50 coaches. Use the feedback to refine before launching at full price.

⚠️ Honest take: The biggest risk here is that Kahunas ($99/mo unlimited, launched 2025) or Hevy Coach ($25/mo, no payments) could add a flat-rate unlimited payment tier at any time to close this gap. The window is real but narrow. Read the full Devil's Advocate section below for the complete picture.

The Problem & Opportunity

The business of online personal training has exploded over the past four years, yet the software market has not caught up for coaches in the 30-100 client range. Most tools designed for this audience were built when online coaching meant a handful of clients, and their pricing models still reflect that era. Today's online coach with 50 clients faces a frustrating market: tools with great UX lack payment processing, tools with payment processing charge per client, and the only flat-rate unlimited option costs $99/month, more than twice what a focused indie tool needs to charge.

🎯 The Opportunity

The core tension in the online personal training software market is straightforward. Every major platform charges coaches based on how many clients they have. Everfit starts at $29/month for ten clients and reaches $140/month for 100 clients. TrueCoach follows a similar staircase, reaching approximately $230/month at 100 clients. ABC Trainerize charges $22/month for five clients and the cost grows with every milestone. The message these platforms send to growing coaches is consistent: the better your business does, the more you pay us.

This per-client pricing model made sense when online coaching was new and coaches needed to start cheap. A trainer with three clients should not pay the same as one with eighty. But the model creates a trap for coaches who have built a real business. A coach earning $8,000/month coaching 50 clients at $160/month each pays $95/month to Everfit. That is less than 1.2% of revenue, which is not outrageous. The frustration is the trajectory: adding ten more clients raises the monthly bill without changing a single feature. The platform grows its revenue as a percentage of yours, with no corresponding increase in value delivered.

The alternatives that escape this trap are limited. Hevy Coach costs $25/month and has genuinely excellent UX, with clients and coaches consistently rating it above Trainerize in experience. But Hevy Coach includes no payment processing. Coaches using it must still send invoices through Stripe or PayPal manually, copy receipts to spreadsheets, and track who has and has not paid through a separate system. Kahunas launched an unlimited tier in 2025 at $99/month that includes Stripe and PayPal integration. This is the closest option to what a coach with 50-100 clients actually needs. But $99/month is two and a half times the price of a tool that could exist at $39/month.

The opportunity is a flat-rate coaching platform that charges $39/month for unlimited clients and includes integrated payment collection as a core feature, not an upgrade. This is not a subtle gap. It is a $60/month savings for every coach who currently uses Kahunas, and a complete solution for the 15,000-20,000 coaches who currently use Hevy Coach or EverFit and invoice separately.

👤 Ideal Customer Profile

The target customer is an online personal trainer who has been coaching for one to three years and has built a client base of 20 to 100 remote clients. They typically charge between $100 and $300 per client per month for monthly online coaching packages that include customized workout programs, weekly check-ins, progress tracking, and direct messaging support. Their business generates $3,000 to $20,000 in monthly revenue.

This coach is not a gym employee. They work remotely, often from home, coaching clients in different time zones and countries. They found online coaching through social media, primarily Instagram, TikTok, or YouTube, and have built an audience that converts to paying clients. They may also run group programs, offer one-time program purchases, or sell nutrition coaching as an add-on.

Their current tech stack looks like this: a workout programming platform such as Trainerize or EverFit for building and delivering programs, a payment processor such as Stripe or PayPal for collecting monthly fees, a separate invoicing tool or manual Stripe dashboard for billing management, Google Sheets or Notion for tracking client progress and check-in responses, and WhatsApp or email for client communication. The average online coach uses four to six separate tools to run what should be a single workflow.

They are frustrated specifically with two things. First, the cost of their primary programming platform keeps increasing as they add clients. Second, they spend three to five hours per month on billing administration: sending invoices, chasing late payments, reconciling who has paid, and updating spreadsheets. A tool that combines programming delivery, automatic recurring billing, and progress tracking in one flat-rate monthly fee would immediately replace two to three tools in their stack and eliminate most billing administration.

Geographically, this is a global audience. Online personal training has no geographic constraint. The majority of coaches in this segment are based in the United States, United Kingdom, Canada, and Australia, but serve clients internationally. The software they need is equally global. This is not a US-only or even English-only opportunity.

🔥 Why Now

Three converging signals make 2026 the right moment to build in this space.

The first is the continued quality decline of Trainerize following its acquisition by ABC Fitness in 2022. For years, personal trainers have accepted Trainerize bugs, interface inconsistencies, and a cluttered roadmap as the cost of using the most established platform. In May 2025, a Reddit thread titled "RANT: Trainerize sucks but it's the best we have" collected 28 upvotes and 50 comments. In December 2024, a thread titled "Coaching platforms are rip-offs" generated 26 upvotes and 87 comments from trainers comparing every major platform and finding them wanting. The frustration is not new, but it is growing and increasingly documented. Coaches who accepted platform imperfection in 2022 are now actively looking for alternatives in 2026.

The second is the emergence of Hevy Coach as the preferred UX option in the market. Hevy Coach launched its coaching tier at $25/month with an interface that coaches and clients consistently rate as cleaner and more intuitive than Trainerize or TrueCoach. The problem is that Hevy Coach launched without built-in payment processing. Coaches love the product but have to solve the billing problem themselves. This creates a specific, named gap in the market: a Hevy Coach experience with integrated payments at a similar price point.

The third is the recent launch of Kahunas, which validated the unlimited flat-rate model at $99/month. Kahunas proved that coaches will pay for unlimited client slots rather than per-client pricing. But $99/month is a ceiling that pushes coaches with 15-40 clients away. These coaches would pay $39/month for the same core features. The validation happened; the price optimization has not.

📊 Validation & Proof

The demand signal in the personal training subreddit is exceptionally clear. Within a single community, multiple threads from 2025-2026 document the precise problem this product would solve.

In this Reddit discussion, a trainer compared every major platform by annual cost and noted that TrueCoach tops the list at nearly $2,951/year for 100 clients, while the only "affordable" options have feature gaps. The thread generated active comparison shopping behavior, confirming that coaches actively evaluate alternatives and have not found a satisfying one.

In this Reddit thread from February 2026, a trainer built a feature comparison across every major platform and specifically called out that built-in payment processing is missing from Hevy Coach and FitPros, while present in tools that charge more. The comment "PT Distinction is great value if you only need programming. $60/mo for 25 clients with $1.60/client after" confirms awareness of the pricing tiers and the tradeoffs coaches face.

In this Reddit thread from January 2025, a trainer specifically asked for software that could "track used sessions so I don't have to do it manually" and "ideally provide clients with a receipt or invoice." This is the exact workflow the proposed product would automate.

The market data reinforces the community signals. The personal trainer software market was valued at $780M in 2025 and is projected to reach $1.845B by 2033, growing at an 11.36% CAGR. Online fitness coaching specifically is worth $5.34B globally, and 86% of the highest-earning coaches now work exclusively online. The adjacent yoga app market demonstrated viability when Floga, a yoga teacher management app, achieved $10,000 MRR within weeks of its May 2025 launch through a lifetime deal.

The Market

The personal trainer software market is large, crowded at the top, and underserved in the middle. The dominant platforms (Trainerize, TrueCoach) are well-funded but declining in satisfaction scores. The cheap alternatives (Hevy Coach, EverFit entry tier) are feature-incomplete. The gap at $39/month unlimited with integrated payments has been named by the community but not filled.

🏆 Competitive Landscape

The current competitive landscape divides into three tiers.

Tier 1: Per-client incumbents ($90-250/month at 50 clients)

Trainerize (ABC Trainerize) is the market leader by user count. It charges $22/month for five clients and scales to $250/month for the Studio tier with unlimited clients and Stripe payments. The most common complaint is that per-client pricing makes growth expensive, and payment processing is either an add-on ($10/month for basic Trainerize Pay) or requires jumping to the $250/month Studio tier. Post-acquisition quality has declined measurably.

TrueCoach (Xplor) is the original quality alternative to Trainerize. Pricing scales from approximately $30/month for a small client list to $230/month at 100 clients. It includes payment processing in most tiers through MyFitnessPal integration. It was sold from its original founders to Xplor, and the Trustpilot reviews show trainer frustration with post-sale product direction.

Everfit charges from $19/month for five clients to $140/month for 100 clients. It includes payments in most plans and has a solid feature set. The entry price is competitive but the scaling cost is the same problem coaches face with all per-client tools.

Tier 2: Feature-incomplete affordables ($25-35/month)

Hevy Coach is the UX winner in the affordable segment. Coaches and clients consistently rate it as the most intuitive platform. It starts at $25/month for up to 10 clients with price brackets above that. The critical limitation: no built-in payment processing. Coaches using Hevy Coach must manage billing entirely outside the platform.

FitPros launched as a free alternative after QuickCoach shut down. It is built by trainers for trainers and fills the no-cost tier but lacks payment processing and advanced features needed for a 30-100 client coaching business.

Tier 3: New unlimited flat-rate entrants ($35-99/month)

Kahunas launched in 2025 with three tiers: $35/month for 25 clients, $69/month for 50 clients, and $99/month for unlimited clients with Stripe and PayPal integration, branded app support, and AI tools. This is the closest existing product to what this report describes. The gap is price: $99/month for unlimited is 2.5x what a focused builder can offer at $39/month.

PT Distinction is a long-standing option with a tiered model: $19.90/month for three clients, $59.90/month for 25 clients, and $89.90/month for 50 clients, with every additional client above 50 adding $1.60/month. It includes payments and has excellent reviews but is not a flat-rate unlimited product.

Price comparison at 50 clients with payments:

The chart below shows why the $39/month gap is real. At 50 clients, the cheapest option with both programming and integrated payments is PT Distinction at $89.90/month. Hevy Coach and EverFit's entry tiers fall in the $95-140/month range with or without payments.

🌊 Blue Ocean Strategy

The blue ocean for this product is the intersection of three factors that no existing tool combines: flat-rate unlimited pricing, integrated payment collection, and simple-enough UX for coaches who are not technical. Every existing product misses at least one of these.

Trainerize has the integrations but per-client pricing and declining UX. Hevy Coach has the UX but no payments. Kahunas has unlimited pricing with payments but costs $99/month. PT Distinction has payments but charges per client above 50.

The positioning is simple: take what coaches love about Hevy Coach (clean interface, client-first app, intuitive workout builder) and add what Hevy Coach is missing (recurring payment collection, invoicing, payment receipt delivery). Price it at $39/month forever, regardless of how many clients the coach adds. Build this in public in the r/personaltraining and r/gymownerforum communities where the frustration is documented and the target users congregate.

The specific differentiator in marketing copy writes itself: "Unlike every other platform, we don't charge you more for signing more clients. At 5 clients or 500, your bill stays $39."