Kaizer vs Kahunas
Up-to-date comparison between Kaizer and Kahunas: AI, white-label app, language, LATAM billing, programming and nutrition. Built to help you decide, not to sell.
Kahunas is an all-in-one English coaching platform (UK) whose hook is shipping you your own fully branded app in under 30 days, plus a huge nutrition database, payments and video calls. Its only AI is the Health Score (sleep, stress and readiness scores from wearables): it reports, it doesn't touch your training program. Kaizer is the choice if you want AI that actually coaches: it generates the routine and re-programs it after every session the client logs — recalculating the estimated 1RM with NSCA tables and adjusting weights and reps. It also offers the full product in Spanish today (Kahunas is English-only, Spanish 'in development'), shows prices in USD and charges in pesos. The AI is optional — turn it off anytime; you keep the final say. If what you need is a packaged white-label app or built-in nutrition, that's where Kahunas has the broader product surface.
Updated: August 10, 2026
Side by side.
KahunasAI that re-programs trainingYes — adjusts weights and reps after every logged session (sets, RIR, estimated 1RM)No — its AI (Health Score) only reports wearable scores; the coach adjusts everything by handAI routine generationYes — and it re-programs from real performanceNo — routine building is manualProgramming speedFast; auto-progression removes manual variable editingReviewers describe it as slow and rigid for building plansLanguageFull Spanish support (Rioplatense + neutral) + EnglishEnglish-only interface; Spanish 'in development'Local-currency billingShown in USD, charged in pesosCharged in USD, card requiredWhite-label appPolished, native Kaizer app (no packaged white-label)Own iOS + Android app in <30 days (Ultimate tier only, USD $99/mo)NutritionMacros and calories, meal plans and AI-assisted nutrition~1.6M-food database with macro and micronutrient loggingFree planBasic for up to 3 clients14-day trial, card required; no permanent free planPayment trackingState per client, reminder and history; does not process the moneyCharges the client (Stripe and PayPal, no commission of its own)Bringing what you already haveImports PDF, DOCX, XLSX, CSV, TXT or a photo (up to 500 KB)Built in its own editor; no routine importWhere Kaizer wins over Kahunas.
Where Kahunas still wins.
Kahunas genuinely beats Kaizer on several fronts, and it's worth saying honestly. (1) White-label app: it ships you a fully branded iOS + Android app under your own App Store / Google Play listing in under 30 days, with no setup fee and no separate Apple/Google subscription — a packaged offering Kaizer doesn't provide. (2) Business and marketing automation: lead-gen forms, sales funnels, churn prediction and Zapier/Make integrations are mature. (3) All-in-one breadth: a deep nutrition database (~1.6M foods with macros and micros), native video calls and commission-free payments — a broader product surface than Kaizer's, which covers training and nutrition and nothing else. (4) Reputation and support: 4.9/5 on GetApp, with reviewers praising responsive support and ease of use. Kaizer does nutrition too, so the honest comparison there is food-database size, not whether it exists. If you rely on those 1.6M foods or on its packaged white-label app, weigh that. If you want AI that re-programs training itself, Spanish that works today and billing in pesos, Kaizer is the call.
Compare it yourself in a demo.
When to choose Kahunas
You want your fully branded iOS + Android app in under 30 days, with no setup fee (Ultimate tier).
You lean on business and marketing automation: lead-gen, funnels, churn prediction, Zapier/Make.
You need the all-in-one breadth: ~1.6M-food nutrition database, native video calls and commission-free payments.
You weigh its reputation for responsive support and ease of use (4.9/5 on GetApp).
When to choose Kaizer
You want AI that re-programs training — weights and reps after every logged session — not just wearable scores.
You want to program fast: auto-progression removes the manual variable editing Kahunas reviewers describe as slow and rigid.
You work in Spanish today: on Kahunas, Spanish is still 'in development'.
You bill in LATAM: priced in USD, charged in pesos, with a Basic at USD 5/month for up to 3 clients.
Move from Kahunas 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 Kahunas.
No. Kahunas' only AI is the Health Score (or Wellbeing AI): it generates sleep, stress, anxiety and readiness scores from wearable data (Apple Health / Google Health Connect) and auto-populates check-ins. It doesn't generate routines or re-program the plan after a session — the coach reads the scores and adjusts everything by hand. Kaizer recalculates each client's estimated 1RM after every workout they log (using sets, reps and RIR) and updates the target weights and reps of upcoming sessions; the coach switches it on or off per client, and any week they edit drops out of the calculation permanently.
Kahunas has three public USD tiers with a 14-day trial (card required): Essentials USD $35/mo (up to 25 clients, generic app), Growth USD $69/mo (up to 50 clients, adds Health Score A.I. and automations) and Ultimate USD $99/mo (unlimited clients, adds your own fully branded iOS + Android app). 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 the adaptive AI included on all paid tiers. Current pricing on kaizer.app/en/pricing.
Kahunas' interface is English-only. Their own help docs say 'the main setup of the platform is in English' and that they are 'working on introducing multiple languages in the coming year'. You can type your own content (exercise names, foods, program titles) in any language, but the UI isn't localized to Spanish. Kaizer offers the full product in Spanish today, and support responds fast in your hours.
Here Kahunas has an honest edge. Kahunas packages a fully branded iOS + Android app (Ultimate tier, USD $99/mo) and ships a huge nutrition database with macro logging; its entry tier is USD $35/mo against Kaizer's USD 19/mo. Kaizer doesn't offer a packaged white-label app: your clients train in the native Kaizer app. On nutrition they are at parity, though Kahunas' food database is larger. If that is central to your business, weigh it. If what moves the needle most is AI that re-programs training itself, Kaizer.
The main change is the engine: in Kahunas you build every program by hand (reviewers call it slow and rigid) and the AI only surfaces wearable scores you then act on yourself; in Kaizer the AI builds the routine and re-programs weights and reps after every logged session, eliminating the manual progressive-overload editing Kahunas reviewers complain about. If you work in LATAM or Spain you also gain Spanish that works today and billing in pesos. The honest tradeoff: Kaizer has no white-label app, and Kahunas' food database is larger, so keep that in mind.
The Kaizer team guides you through onboarding and initial setup; the scope depends on the data available from your current tool.
August 2026. We review Kahunas pricing, features and positioning quarterly. If you find anything out of date, write us at support@kaizer.app.
