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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: 1000+ trainers across 20+ countries and 120k+ 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: June 13, 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 marketNutritionOut of scope — training/programming onlyYes, includes nutrition plans with automatic macro calculationWhite-label appIncluded in ProIncluded in every paid plan at no extra costFree planFree forever up to 3 clients, no cardFree forever up to 3 clients, no card — at parity1000+active trainers
+120,000routines created
20+countries in operation
1,500+exercises with video
Where Kaizer wins over TrainerStudio.
The AI re-programs itself, not just the first draft.TrainerStudio's own documentation says it plainly: its AI is designed as an assistant, not an autopilot — it generates suggestions you edit. It produces a first draft from your library and stops there; every adjustment after is manual. Kaizer takes every workout the client logs, recalculates the estimated 1RM via NSCA tables, and adjusts the weights and reps of upcoming sessions automatically. You choose whether it runs unattended or as a suggestion to approve. The difference between 'I used AI once' and 'the routine adapts itself to the client's real performance'.
Retention you can measure, not a passive ping.TrainerStudio's 'automatic tracking' is passive: it notifies you when a client trains. Useful, but it doesn't move the needle on its own. Kaizer leads because automatic adaptation keeps plans alive and clients progressing — today with 1000+ trainers across 20+ countries and 120k+ routines generated. Fewer plateaus, better adherence, higher retention.
Priced in USD, charged in pesos — no FX friction.TrainerStudio runs a EUR ladder (€19 to €149) with VAT on top, built for the Spanish market. For a coach who bills in pesos, that's FX friction on every renewal. Kaizer shows prices in USD so they stay clear and stable, and charges in pesos: you pay in your own currency, with no FX surprises and no European VAT. Language is at parity; the difference here is the currency.
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 a white-label client app on every paid plan at no extra cost, something many rivals charge an expensive add-on for. Its EUR pricing is simple and cheap for the Spanish market (free to 3 clients, starts at €19, no lock-in). And it ships nutrition with automatic macro calculation — a category Kaizer deliberately does not do (training only). For a Spain-based coach who wants an all-in-one (training + nutrition + white-label app) in their own language at a low EUR price, TrainerStudio is a legitimately good fit. Kaizer's edge is specific: AI that re-programs itself after every session, retention tracking, and billing in pesos — 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.
You want the white-label app included on every paid plan at no extra cost.
You prefer simple, cheap EUR pricing (free to 3 clients, starts at €19, no lock-in).
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.
You're after better retention: plans that stay alive, fewer plateaus and better adherence.
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.
How to migrate from TrainerStudio to Kaizer in under 48 hours.
You already work in Spanish with a block builder, profiles and check-ins — all of which map 1:1 to Kaizer. You're not migrating to gain Spanish (you already have it): you're migrating to add adaptive AI. Our team handles the whole migration for you in under 48 hours.
Chat
SMSofía M.Closed today's session, last set was tough2
LRLucas R.Sure, starting the new block on Monday
Last set of bench press was toughSaw it in the log — Friday we drop to 4×6 and adjust
Step 01
Book a 15-minute call.
Give us access to your current tool.
Add client
QuickManual
First nameSofía
Last nameMartínez
Emailsofia@gmail.com
kaizer.app/i/x8f2…Copy
Invite link
Step 02
We migrate clients, routines and history for you.
Create new routine
ManualGenerate with AI
Sessions / week4
Duration8 weeks
GoalHypertrophy
LimitationsNo knee impact
Generate routine
Step 03
Turn on automatic adaptation and review — all in under 48 hours.
We handle the migration for you, in under 48 hours: clients, routines and history. No CSV exports, nothing to upload by hand. Zero downtime for your clients.
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 approve or let it run unattended.
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 has a free plan up to 3 clients and then a EUR ladder (around €19/mo for 5 clients, up to €149/mo unlimited), with VAT on top. The white-label app and nutrition come included on paid plans. Kaizer also has Free up to 3 clients, then Starter / Pro / Unlimited with adaptive AI included on all paid tiers, priced in USD and charged in pesos. Current pricing on kaizer.app/en/pricing.
Yes to both. TrainerStudio includes nutrition plans with automatic macro calculation and a white-label app (your own logo and colors) at no extra cost on all paid plans — two genuine strengths. Kaizer is deliberately training-only: we don't do nutrition or macros. The white-label app is included from the Pro plan. If your priority is an all-in-one with nutrition, TrainerStudio covers that better; if your priority is programming with AI that adapts itself, Kaizer.
You're not migrating for language — you already have it in both. You migrate to stop manually re-programming each client's next week. In TrainerStudio you generate a draft and then adjust everything by hand; in Kaizer the AI recalculates weights and reps automatically after every logged session (estimated 1RM via NSCA tables), with you approving. That turns re-programming time into review-and-publish, and protects retention. If you bill in pesos, it also removes the EUR + VAT friction.
May 2026. We review TrainerStudio's pricing, features and positioning quarterly. If you find anything out of date, write us at support@kaizer.app.
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