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Best Harbiz alternatives in 2026.

Best Harbiz alternatives in 2026.

Harbiz is solid in Spain as an all-in-one wellness platform, but it isn't the only choice. Honest list of alternatives for coaches who want the plan to re-program itself after every session instead of sitting static. The AI is optional — turn it off anytime; you keep the final say.

Why look for a Harbiz alternative.

Harbiz is good as an all-in-one wellness tool in Spain, but it's missing the piece that retains clients most: post-session adaptive AI that re-programs the plan from real client performance (not just plan generation). For many coaches, product depth, iteration speed and region-ready billing matter too. Here are the 5 best options.

Updated: August 10, 2026

1200+active trainers
+150,000routines created
20+countries in operation
1,500+exercises with video

Compare it yourself in a demo.

One by one.

Each alternative with its short pitch, concrete pros and cons, and a deeper link where it applies.

  1. Kaizer

    Kaizer

    The best Harbiz alternative for coaches who want the plan to re-program itself: weights and reps adjust after every session the client logs.

    Pros
    • Automatic weight and rep updates after every logged session (estimated 1RM, NSCA tables).
    • Kaizer detects risk and churn signals so the trainer can review the situation.
    • Kaizer client app connected to the coach dashboard.
    • Free plan.
    • Shown in USD, charged in pesos.
    • Payment tracking: a charge per client with its state, reminder and history.
    • Import the routine you already have from PDF, Excel, Word or a photo.
    Cons
    • No nutrition (training-only focus).
    • Younger product than Harbiz.
    • Does not process payments: you collect the money outside — Kaizer only keeps the ledger.
    See details
  2. Trainerize

    Historical English-language leader, robust and well-iterated. Good option if you work with English-speaking clients.

    Pros
    • Mature product.
    • Native integrations (Garmin, MyFitnessPal).
    Cons
    • No adaptive AI.
    • 100% English (Spanish translated).
    • USD-only billing.
  3. TrueCoach

    Premium English-language product with video-first UX loved in the US.

    Pros
    • Clean UX.
    • Well-iterated.
    Cons
    • No adaptive AI.
    • English only.
    • No nutrition.
  4. FitSW

    More affordable alternative with nutrition module included.

    Pros
    • Lower pricing.
    • Includes nutrition.
    Cons
    • No adaptive AI.
    • Somewhat dated UX.
    • Limited Spanish support.
    • USD-only billing.
  5. My PT Hub

    UK platform with broad feature depth and nutrition included.

    Pros
    • Broad features.
    • Includes nutrition.
    Cons
    • No adaptive AI.
    • English first.

How to choose.

If you need nutrition + training in one tool and work in Spain with individual clients, Harbiz is still reasonable. If you want the plan to adapt itself after every session — with USD pricing charged in pesos as a bonus — Kaizer. If you only work with English-speaking clients and need product maturity, Trainerize.

Moving over takes an afternoon, not a month.

You bring what you already have, your clients join with a link, and the plan carries on where it was.

Import routinePDF
juan-program.pdf240 KB
Bench press4 × 8 · 72.5 kgDetected
Barbell row4 × 10 · 60 kgDetected
Overhead press3 × 10 · 35 kgDetected
Create routine
Step 01

You upload the routine you already have.

PDF, Word, Excel, CSV, text or a photo. Kaizer reads the exercises, sets and loads, and you fix whatever needs fixing.

Add client
QuickManual
First nameSofía
Last nameMartínez
Invite link
Step 02

You invite your clients with a link.

Create new routine
ManualGenerate with AI
Sessions / week4
Duration8 weeks
GoalHypertrophy
LimitationsNo knee impact
Generate routine
Step 03

They train, and the plan adjusts on its own.

FAQ about Harbiz alternatives.

Kaizer. It's the only option on this list that automatically adjusts weights and reps after every session the client logs, and it adds a risk-signal detection with churn alerts and a native client app. The product also offers the full product in Spanish, with prices shown in USD and charged in pesos — but the reason to pick it is the product, not the geography.

Only Kaizer. Harbiz has AI to generate plans (like many others), but no alternative on this list automatically adjusts weights and reps after every session the client logs. Kaizer recalculates the estimated 1RM with NSCA tables and re-programs upcoming sessions; the rest generate the plan once and never touch it again.

Kaizer focuses on personal trainers and individual programming; it does not publish membership, access-control or multi-location operations features. Harbiz presents itself for professionals and centers, so confirm its operational scope directly with its team.

Yes — FitSW, My PT Hub and Trainerize all have nutrition modules. Kaizer doesn't — we're deliberately training-only. Many coaches combine Kaizer (for training) with specialized nutrition tools. If you need nutrition + training in one product, Harbiz is still a valid option.

Harbiz starts around $19/mo (BASIC). Kaizer has a Free plan up to 3 clients and competitive paid tiers with adaptive AI included. Trainerize and TrueCoach are in a similar range. FitSW tends to be the most affordable. Exact pricing on each landing page.

August 2026. We review each alternative's pricing and features quarterly.