Comparison

PerfectFast vs Calivra

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

Head to head
About

PerfectFast

This app helps you track intermittent and extended fasting periods with a clean, focused interface. It supports various fasting schedules, custom durations, and provides detailed history and statistics to monitor your progress.

Highlights
  • Intermittent and extended fast tracking
  • Custom fasting schedules
  • Fasting history and statistics
  • Reminders and notifications
  • Apple Watch companion app
  • Live Activity support
Features
Read full description

PerfectFast helps you track intermittent and extended fasts with a calm, focused experience. Set up a fasting plan, follow your active fast, review your history, and see progress statistics without clutter. The app supports common fasting schedules, custom durations, reminders, fasting stages, history views, statistics, appearance settings, local data export, and Live Activity support on compatible devices. Log water, weight, blood glucose, and ketones beside your fasts, and read them on the fast's own clock in the Fast Timeline, with resting heart rate, heart rate variability, body composition, and sleep from Apple Health if you connect it. The Apple Watch companion lets you check your current or scheduled fast from your wrist, start or end a fast when your iPhone is nearby, and keep progress on your watch face with complications. Your fasting data stays on your device unless you choose to export or share it.

About

Calivra

Features
Read full description

Calivra convierte contar calorías en algo simple: fotografía tu plato y la IA identifica el nombre, los ingredientes, las calorías y los macros al instante. ANÁLISIS POR FOTO Toma una foto y en segundos tienes el conteo completo. Si algo no está claro (¿con aceite? ¿con azúcar?), Calivra te pregunta con opciones rápidas para afinar el resultado — sin escribir nada. TU COCINA — la app aprende contigo Cada plato que registras queda guardado. La segunda vez que comes lo mismo, regístralo en 1 toque, sin gastar otro análisis. Mientras más la usas, más rápida se vuelve. PROGRESO REAL Sigue tu peso, tus medidas corporales y compara tu evolución con lo que comes en una sola gráfica. Metas claras, sin complicaciones. AYUNO INTERMITENTE Inicia tu ventana de ayuno y sigue el tiempo en vivo, con tu protocolo favorito (16:8, 18:6, o el que prefieras). ENTRENADOR PERSONAL CON IA Cuéntale tu objetivo, tu nivel y tu equipo disponible, y Calivra arma tu rutina semanal. Cada ejercicio incluye demostración visual, pasos de ejecución, errores comunes y qué músculos trabaja. Modo guiado con descansos automáticos entre series. RECETAS A TU MEDIDA La IA te recomienda qué cocinar según las calorías que te quedan en el día y los ingredientes que ya sueles usar. UN COACH QUE TE ACOMPAÑA Notificaciones inteligentes que celebran tus rachas, sugieren ajustes sanos y te recuerdan tus horarios — sin spam, máximo 2 avisos al día. CONECTA CON APPLE SALUD Sincroniza tus comidas y tu peso automáticamente con la app Salud. WIDGET Y APPLE WATCH Consulta tu anillo de calorías desde la pantalla de inicio o tu muñeca. TUS DATOS, TU CONTROL Respaldo opcional en tu iCloud, con la frecuencia que elijas. Todo se guarda en tu dispositivo. Calivra es gratis, con límites diarios pensados solo para evitar abuso — no hay suscripciones ni compras dentro de la app.

Screenshots

PerfectFast4 screens
Calivra4 screens

Verdict

The call

The clearest difference is update cadence: PerfectFast at every 10 days against Calivra's every 3 weeks. PerfectFast also leads on iOS requirement (17.6 vs 26.4). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PerfectFast ships an update every 10 days, Calivra every 3 weeks. The most recent releases landed on October 19, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
PerfectFast versus Calivra: the parameters behind the verdict, then further details
ParameterPerfectFastCalivra
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS17.6 — better26.4
Further details — not scored
Size31 MB9 MB
Age rating12+4+
DeveloperIdan Lupinskyslehyder martinez

In-app purchases

None

PerfectFast

No in-app purchases

None

Calivra

No in-app purchases

Questions

Is PerfectFast free?
PerfectFast is free to download, with no in-app purchases.
Is Calivra free?
Calivra is free to download, with no in-app purchases.
Do PerfectFast or Calivra have ads?
Neither PerfectFast nor Calivra shows ads.
Which is updated more often, PerfectFast or Calivra?
PerfectFast ships an update every 10 days, and Calivra every 3 weeks. Most recently, PerfectFast was updated on October 19, 2026 and Calivra on October 1, 2026.

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