Kaizer vs TrainerStudio
Up-to-date comparison between Kaizer and TrainerStudio: adaptive AI, retention, language, white-label app, nutrition and price. Honest about where each one wins — both are strong in Spanish.
Kaizer and TrainerStudio are both coaching platforms. The real difference is what happens after the routine is generated: Kaizer re-programs it on its own after every session the client logs — recalculating estimated 1RM via NSCA tables and adjusting the weights and reps of upcoming sessions — while TrainerStudio's AI generates a first draft and nothing more; you adjust everything after by hand. Add scale in real use: 1200+ trainers across 20+ countries and 150k+ routines generated. TrainerStudio is a solid product built in Spain: white-label app on every paid plan, nutrition with macros, and a free tier up to 3 clients. Language is at parity — both work great in Spanish — and USD pricing charged in pesos is a plus if you work in LATAM, not the pitch. The AI is optional — turn it off anytime; you keep the final say.
Updated: August 10, 2026
Side by side.
TrainerStudioAdaptive AIYes — re-progresses weights and reps after every logged session (sets, RIR, estimated 1RM)No — the AI generates a first draft; you adjust everything after by handRetentionAutomatic adaptation that keeps plans alive: fewer plateaus, better adherencePassive progress tracking (notifies when a client trains), no published retention metricLanguageFull Spanish support (Rioplatense + neutral) + EnglishNative Spanish (Spain) + English — at parity with KaizerLocal-currency billingPriced in USD, charged in pesosPriced in EUR, VAT added — built for the Spanish marketNutritionMacros and calories, meal plans and AI-assisted nutritionYes, includes nutrition plans with automatic macro calculationWhite-label appNo; clients use the native Kaizer appIncluded in every paid plan at no extra costFree planBasic for up to 3 clientsFree plan for up to 3 clients — at parityPayment trackingState per client, reminder and history; does not process the moneyNo documented client billingBringing what you already haveImports PDF, DOCX, XLSX, CSV, TXT or a photo (up to 500 KB)Built in its own editor; no file importWhere Kaizer wins over TrainerStudio.
Where TrainerStudio still wins.
TrainerStudio is a genuinely strong Spanish-language competitor and wins on several real fronts. It is built in Spain end to end: the panel and client app are native Spanish (no machine translation) with WhatsApp support (+34), so on language experience it is at parity with Kaizer — not behind. It includes app customization and all features in its plans, with the first 3 clients free and per-active-client pricing adjusted to the country. It also ships nutrition with automatic macro calculation, and so does Kaizer, so that one is parity. For a coach who wants an all-in-one (training + nutrition + customized app) in Spanish, TrainerStudio is a legitimately good fit. Kaizer's edge is specific: AI that re-programs itself after every session, retention tracking, and local-currency payment — not language or feature breadth.
Compare it yourself in a demo.
When to choose TrainerStudio
You're a Spain-based coach who wants an all-in-one (training + nutrition + white-label app) in your own language.
Kaizer client app connected to the coach dashboard.
You prefer per-active-client pricing, with the first 3 free and the rate adjusted to your country.
You need nutrition with automatic macro calculation (outside Kaizer's scope).
When to choose Kaizer
You want the AI to re-program itself: weights and reps adjust after every logged session, not just a first draft.
Kaizer detects risk and churn signals so the trainer can review the situation.
You bill in pesos: priced in USD and charged in pesos, with no EUR + VAT friction.
Language is at parity — you migrate for the adaptive engine, not for Spanish.
Move from TrainerStudio to Kaizer with guidance.
The Kaizer team guides you through onboarding and initial setup. The exact scope depends on the data available from your current tool.
Book a short conversation with the team.
We review which data you need to bring over.
We guide you through setting up clients and routines in Kaizer.
You review the setup before inviting your clients.
If you decide to switch, the Kaizer team supports your onboarding and initial setup. Scope and timing are agreed based on the data available in your current tool.
Sources and methodology.
We compare each product using its public pricing and official documentation. Prices, limits, and features can change; these sources were checked on the date shown.
Reviewed: 2026-08-10
FAQ: Kaizer vs TrainerStudio.
Not in the same way. TrainerStudio's AI is an assistant that generates a first routine draft from your library — its own documentation says it's designed as an assistant, not an autopilot, generating suggestions you edit. Once the draft is generated, adjustments after are manual. Its 'automatic tracking' is passive: it notifies you when a client trains, it doesn't recalculate loads. Kaizer re-progresses weights and reps automatically after every session the client logs, recalculating estimated 1RM via NSCA tables; you decide who it runs for, and any week you edit drops out of the calculation.
Both work great in Spanish, no machine translation — here they're at parity. TrainerStudio is built in Spain (trainer panel and client app in real Spanish, WhatsApp support +34) and has an English version. Kaizer works perfectly in Rioplatense and neutral Spanish, plus English. Language is not the deciding factor between these two tools: the real difference is adaptive AI, retention tracking, and billing in pesos vs EUR.
TrainerStudio keeps the first 3 clients free and then charges per active client at a rate adjusted to the country; it states that all features are included. Kaizer has Basic at USD 5/month for up to 3 clients, then Starter USD 19/mo (up to 15 clients), Pro USD 49/mo (up to 50) and Arnold USD 149/mo (up to 500), with adaptive AI included on all paid tiers and local-currency payment. Check TrainerStudio's total for your country and current Kaizer pricing on kaizer.app/en/pricing.
TrainerStudio publishes plans with nutrition and app customization. Kaizer does nutrition with macros too, so the real difference is branding: the client app keeps the Kaizer brand. If your priority is an app under your own name, TrainerStudio covers that better; if your priority is programming with AI that adapts itself, Kaizer.
Yes. The team guides you through onboarding and initial setup. Before you begin, we review what information is available from your current tool and what you need to configure in Kaizer.
August 2026. We review TrainerStudio's pricing, features and positioning quarterly. If you find anything out of date, write us at support@kaizer.app.
