Xert Alternatives

First, What Xert Genuinely Does Better

Xert models Maximal Power Available in real time. As you ride, it tracks how much you have spent and tells you what you can still produce right now — and it will push that to a head unit mid-session. Almost nothing else in the sport does this properly, and if you race criteriums or ride terrain with repeated hard efforts, it is a real advantage.

Anyone telling you Xert has no edge has not used it. The question is not whether the model is good. It is what the model costs you outside the app.

Why People Leave

The vocabulary. Maximal Power Available, Threshold Power, High Intensity Energy, Xert Training Load, Focus, Specificity, Signature. These are Xert's own terms, and they map cleanly onto almost nothing else in endurance sport. Everything you learn about yourself is expressed in a language that only works inside one subscription.

The underlying physics is not proprietary — MPA is doing much the same job as W′ Balance, which is published, peer-reviewed science with a standard name. The difference is that if you describe your athlete in terms of CP and W′, any coach or physiologist in the world understands you. If you describe them in terms of Signature and Focus, you have to explain first.

It is hard to leave. That follows from the vocabulary. Your history is stored in terms that do not translate, so switching feels like starting over even though the underlying files move fine.

Coaches struggle to bring athletes along. A coach can learn a new language. Getting a whole roster to is a different job, and the athlete has to learn it to read their own data.

We have written the full head-to-head separately: Vekta versus Xert.

First, What These Things Actually Are

Most comparison pages fail because they line up products that are not the same kind of thing and then argue about price. So before the list, the table above quotes what each of these calls itself, in its own words rather than ours. Read it before you read the prices.

Xert is one of only two things on this list that models fatigue as it happens. That is the feature to weigh, and most of the alternatives do not replace it — they replace the language it is written in.

The Alternatives

1. Vekta — the same physics, in language that travels

Full disclosure: this is our platform and this page is on our site, so judge the rest of the list on whether it is fair. We describe Vekta as the performance system behind the world’s best, built with the WorldTour. In plainer terms it is a performance model: it models what the body actually does — sustainable power, the finite reserve above it, and how both hold as fatigue accumulates.

Vekta is built on Critical Power, W′, D′ and Pmax. W′ Balance does the same job MPA does: it tracks the work you have available above threshold and how it depletes and recovers through a session. The difference is that CP and W′ are published science with standard names, so the number means something to your next coach, your physiologist and every paper you read. CP updates daily from real sessions rather than needing a signature to re-establish.

Alongside the model: adaptive plans, automatic interval and climb detection, durability measured in every ride, and structured sessions pushed to Wahoo ELEMNT and Coros.

Cost: Coach account free at any roster size. Athletes €19.99/month or €179.99/year, with a free coach account at any roster size.

Where it does not win: Xert's live in-ride MPA on the head unit is a genuine feature we do not match in that form. Vekta tracks W′ Balance second by second and previews it on a prescribed session before you ride, and it pushes structured sessions to Wahoo ELEMNT and Coros — but it does not put a live remaining-capacity number on your bars. If that is the thing you actually ride to, Xert does it and we would rather tell you than let you find out.

2. intervals.icu — CP and W′ for nothing

intervals.icu describes itself as “a free training platform built by athletes, for athletes”, offering powerful analytics and a community. Built by athletes for athletes explains both why it is so capable and why it can be hard going.

If the reason you want to leave is the vocabulary rather than the analysis, intervals.icu gives you Critical Power and W′ in standard terms, free, with proper power curves and custom charts.

Cost: free for an individual, $4 a month for teams.

Where it does not win: there is no live in-ride model at all, and the setup is on you. You are trading Xert's real-time edge for standard language and no bill.

3. WKO5 — the deepest look backwards

TrainingPeaks sells WKO5 as “Training and Analysis Software” that turns “analysis into answers”. It is desktop analysis software that sits on top of a subscription, and it is the deepest of its kind.

If what you valued in Xert was the sophistication of the modelling, WKO5 has the deepest power-duration work in the sport, in standard terms, for $169 once.

Where it does not win: nothing live, desktop only, and it needs a TrainingPeaks subscription underneath to feed athletes in. It answers what happened, never what is still available.

4. Golden Cheetah — free, deep, standard terms

Golden Cheetah states its purpose plainly: cyclists and triathletes should be able to download their power data to the computer of their choice and “analyze it in whatever way they see fit”. That sentence is the whole product, including its limits.

Free and open source, with Critical Power modelling, W′ and programmable charts, actively developed and now running natively on Apple Silicon.

Where it does not win: desktop only, no sharing, no phone app, no live model, and no support. You provide the expertise and the IT department.

5. TrainerRoad — if you want to stop thinking about models

TrainerRoad calls itself “Cycling’s #1 Training App”, and says its AI “finds the right workout for every ride”. Both halves of that matter: it is cycling only, and its job is choosing your next workout.

Some people arrive at Xert wanting sophistication and leave realising they wanted direction. TrainerRoad will simply tell you what to do, adapt your FTP every 28 days without a test, and flag days when the plan is asking too much.

Cost: $21.99 a month or $209.99 a year, 30-day money-back guarantee.

Where it does not win: it is built on FTP and has no fatigue model in the physiological sense. This is a change of philosophy, not an upgrade.

6. Athletica.ai — adaptive planning across sports

Athletica calls itself “Adaptive Endurance Training Plans Powered by Sports Science”. It is a planner that adjusts to your fitness, fatigue and schedule, with a conversational AI layer on top.

If you were using Xert mainly for its adaptive training advice rather than its live model, Athletica does that job across cycling, running, triathlon, rowing and HYROX for $19.90 a month or $189 a year, with a two-week trial and no card required.

Where it does not win: it is a planner. There is no in-ride capacity model.

How To Choose

If you want the same physics in language that travels — Vekta, or intervals.icu if you will do the setup yourself for free.

If you want maximum retrospective depth — WKO5 at $169, or Golden Cheetah for nothing.

If you want to be told what to do — TrainerRoad or Athletica.

If you genuinely ride to live MPA on your head unit and it changes your racing — stay on Xert. Nothing on this list replaces that specific feature, and switching to lose it would be a bad trade.

Also worth reading: TrainerRoad alternatives and intervals.icu alternatives.