Comparison

Fitter vs Kapi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fitter

Improve your cycling efficiency and safety with AI-powered posture analysis. Simply record a video of yourself riding to receive an easy diagnosis and corrections for improper saddle height, reducing injury risk.

Highlights
  • AI-powered posture diagnosis
  • Video analysis of riding posture
  • Saddle height correction
  • Injury risk reduction
  • Improved cycling efficiency
Features
Read full description

Efficient and Safe Bicycle Riding Incorrect saddle height can increase injury risk. Use Fitter for a quick assessment! Record your cycling posture and get an easy analysis.

About

Kapi

Features
Read full description

Kapi es un coach deportivo con inteligencia artificial que entiende tu entrenamiento, tus objetivos y el contexto real de tu día a día. Con Kapi puedes: • Recibir orientación deportiva personalizada. • Crear y ajustar planes de entrenamiento. • Analizar actividades, intensidad, frecuencia cardiaca, zonas y recuperación. • Registrar sesiones de running, ciclismo, fuerza, HIIT y otros entrenamientos. • Sincronizar actividades y calendario mediante Intervals.icu. • Gestionar objetivos, disponibilidad semanal, zonas, molestias y contexto deportivo. • Recibir recomendaciones nutricionales responsables y adaptadas a tu entrenamiento, preferencias y restricciones. • Hablar o dictar mensajes a Kapi naturalmente. • Conservar memoria deportiva controlable para evitar repetir información importante. Kapi adapta su forma de explicar según tu experiencia: desde quien comienza a entrenar hasta deportistas que conocen sus métricas y fisiología. Las recomendaciones de Kapi tienen fines educativos y de acompañamiento deportivo. No sustituyen una evaluación médica, un diagnóstico ni la atención de un profesional de salud.

Screenshots

Fitter4 screens
Kapi4 screens

Verdict

The call

The clearest difference is in-app purchases: Kapi at none against Fitter's 1. Kapi also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fitter sells 1 one-off in-app purchase. Kapi asks for nothing beyond the download.

UpkeepUpdate frequency

Fitter ships an update weekly, Kapi every 9 days. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Fitter versus Kapi: the parameters behind the verdict, then further details
ParameterFitterKapi
PriceFreeFree
Rating4.7 (68 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings68 — better—
Update frequencyWeekly — betterEvery 9 days
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS1716.4 — better
Further details — not scored
Size39 MB48 MB
Age rating4+4+
DeveloperJongheon LeeNebo Lab LLC

In-app purchases

1 purchases

Fitter

One-time1
  • Pro$4.99
None

Kapi

No in-app purchases

Questions

Is Fitter free?
Fitter is free to download, with in-app purchases available.
Is Kapi free?
Kapi is free to download, with no in-app purchases.
Do Fitter or Kapi have ads?
Fitter shows ads; Kapi does not.
Which is updated more often, Fitter or Kapi?
Fitter ships an update weekly, and Kapi every 9 days. Most recently, Fitter was updated on October 29, 2026 and Kapi on October 8, 2026.

Other comparisons