Comparison

Lifter Trainer vs SlotFlex

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

Head to head

About

Lifter Trainer

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Lifter Trainer es la herramienta definitiva para entrenadores personales y coaches de fitness. Diseñada para simplificar la gestión de tus clientes, crear rutinas personalizadas y mantener el control total del rendimiento de cada atleta. Funciones principales: Crea y organiza ejercicios personalizados con videos, descripciones y parámetros ajustables. Diseña rutinas mensuales adaptadas a cada cliente. Asigna entrenamientos y haz seguimiento del progreso en tiempo real. Gestiona múltiples usuarios desde una interfaz clara y moderna. Tu trabajo, más eficiente: Con Lifter Trainer, puedes concentrarte en lo que realmente importa: entrenar, motivar y ver resultados. Ideal para entrenadores de gimnasio, coaches online o estudios de fitness que buscan profesionalizar su servicio y mantener una conexión continua con sus clientes.

About

SlotFlex

Features

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SlotFlex es la plataforma todo-en-uno para estudios: administración de horarios, cobros y membresías, check-in por QR y pases digitales, y automatizaciones que maximizan la ocupación por medio de ClassFlex. Ahorra tiempo al equipo, mejora la experiencia del cliente y convierte cupos libres en ingresos recurrentes.

Screenshots

Lifter Trainer4 screens

SlotFlex4 screens

Verdict

The call

Lifter Trainer and SlotFlex are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Lifter Trainer ships an update weekly, SlotFlex every 4 days. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

ScorecardNo meaningful differences

Lifter Trainer versus SlotFlex: the parameters behind the verdict, then further details
Parameter	Lifter Trainer	SlotFlex
Price	Free	Free
Update frequency	Weekly	Every 4 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.5 — better
Further details — not scored
Size	18 MB	65 MB
Age rating	17+	12+
Developer	Kevin Pena	3-101-938358 S.A.

In-app purchases

None

Lifter Trainer

No in-app purchases

None

SlotFlex

No in-app purchases

Questions

Is Lifter Trainer free?

Lifter Trainer is free to download, with no in-app purchases.

Is SlotFlex free?

SlotFlex is free to download, with no in-app purchases.

Do Lifter Trainer or SlotFlex have ads?

Neither Lifter Trainer nor SlotFlex shows ads.

Which is updated more often, Lifter Trainer or SlotFlex?

Lifter Trainer ships an update weekly, and SlotFlex every 4 days. Most recently, Lifter Trainer was updated on October 15, 2026 and SlotFlex on October 21, 2026.