Comparison

HonestFast vs Onefast

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

Head to head
About

HonestFast

This app helps you track intermittent fasting with a simple timer and detailed metabolic stage insights. It includes dedicated features for Ramadan, such as prayer times and custom fast scheduling. Syncs across devices and offers lock screen widgets for easy monitoring.

Highlights
  • Intermittent fasting timer
  • Ramadan mode with prayer times
  • Metabolic stage tracking
  • Water tracking
  • Multi-device iCloud sync
  • Live Activity and Dynamic Island support
  • Home screen widgets
Features
Read full description

Most fasting apps have never heard of Iftar. Every Islamic app stops after Ramadan. HonestFast is the fasting tracker built for Muslim intermittent fasters: track 16:8, 18:6, 20:4 and OMAD alongside a full Ramadan mode with astronomically calculated Sehri and Iftar times for 600+ cities. No account required. Built by a faster who needed both. INTERMITTENT FASTING Start a fast with one tap. Track your progress in real time through six metabolic stages, from Fat Burning through Ketosis to Deep Autophagy, so you understand exactly what fasting is doing to your body. 16:8, balanced daily intermittent fasting 18:6, extended fasting for deeper results 20:4, advanced fasting OMAD, one meal a day Custom plans from 10 to 48 hours (Premium) RAMADAN & ISLAMIC FASTING A complete Ramadan mode built for Muslim fasters. Astronomically calculated Sehri (Suhoor) and Iftar times Prayer times for your location 600+ cities with manual selection Automatic Ramadan detection via Hijri calendar Voluntary Sunnah fasting from Fajr to Maghrib Qada tracking to never lose count of missed fasts Sehri and Iftar reminders Sawm tracking throughout the year SIX FASTING STAGES See inside your body as your fast progresses. Fed State Catabolic State Fat Burning Ketosis Autophagy Deep Autophagy LIVE ACTIVITY & DYNAMIC ISLAND Your active fast on your Lock Screen and Dynamic Island without opening the app. Timer, progress bar, fasting plan, start and end times, all visible at a glance. Log water directly from your Lock Screen during supported fasts. STREAKS & FASTING HISTORY Build the habit. See the pattern. Review every completed fast including duration, fasting plan, and metabolic stage reached. Build streaks and create share cards to celebrate your progress and weight loss milestones. WATER TRACKING Log your daily water intake from the app or directly from your Lock Screen. Your count resets automatically at midnight and syncs across your Apple devices. APPLE HEALTH & iPHONE Connect with Apple Health to log body weight. Check your active fast at a glance with Home Screen widgets. Sync your fasting history and active fast state across Apple devices through iCloud, no account required. HONESTFAST FREE Fasting timer with 16:8, 18:6, 20:4 and OMAD Full Ramadan mode with Sehri, Iftar, and prayer times for 600+ cities Six metabolic stages including Ketosis and Autophagy Streaks, fasting history, and share cards Live Activities and Dynamic Island, included free iCloud sync, no account required HONESTFAST PREMIUM See which fasting plan works for your body: trends, heatmaps, and plan performance analytics across every fast you have completed Find your patterns: when you fast best, which plans you complete most, and where streaks break Fast on your own schedule with custom plans from 10 to 48 hours Explore the full detail of every fast you have ever tracked Track every fast honestly, whether you practice intermittent fasting for weight loss, observe Ramadan, keep Sunnah fasts throughout the year, or all three. Terms of Service: https://khsalman.github.io/honestfast/terms/

About

Onefast

Read full description

A fasting timer that does one thing well. Pick a plan, tap Start, and Onefast counts. The time left is on your lock screen and in the Dynamic Island, so you never open the app just to look. When the goal is reached it tells you once, then keeps counting, up to seven days. ONE TAP No sign-up, no questions, no tour. The first screen is the plan picker with 16:8 already selected; the second is the timer. That is the whole setup. ALWAYS RIGHT The timer is a clock, not a counter. Force-quit the app, restart the phone, change time zone — it comes back showing the true elapsed time, to the second. The widget, the Live Activity and the app all read the same moment. YOURS TO EDIT Forgot to tap End? Fix the time afterwards. Add a fast you did last week. Overlaps are named in words, not blocked silently. Fasts longer than 24 hours are allowed — Onefast asks once whether you meant it, then never again. QUIET WHEN YOU WANT Three switches: Live Activity with Dynamic Island, the lock screen widget, and the home screen widget. Notifications turn on and off one kind at a time, and the mid-fast ones start off. PLANS 12:12, 14:10, 16:8, 18:6, 20:4 and one meal a day are built in. Up to five named custom plans and a weekly schedule with Pro. NO ADS. EVER. Not on the free tier, not after you buy. Onefast has no server, no account and no analytics. Your history lives on your iPhone and, if you turn it on, in your own private iCloud. ONEFAST PRO Unlimited history (free keeps the last 30 days), 30-day and all-time stats with charts, month and year summaries, insights from your own record, milestones you can share, a weekly schedule with rest days, up to five named custom plans, two-way weight sync with Apple Health, a weight goal line on your chart, ten ring colours and app icons or a colour of your own, a medium calendar widget, and CSV export. Two prices, one name: a yearly subscription that auto-renews until cancelled, or a single lifetime purchase. No trial. The price is on screen before you tap anything. Everything that makes the timer usable — lock screen, notifications, backup, editing — stays free with or without Pro. Onefast is a timer. It gives no medical or dietary advice; talk to a professional before changing how you eat. Available in English, 日本語, 한국어, 繁體中文, Italiano, Nederlands, Deutsch, Français, Español, Português (Brasil), العربية, Türkçe and Tiếng Việt. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://primetruthteam.github.io/onefast/privacy/

Screenshots

HonestFast4 screens
Onefast4 screens

Verdict

The call

The clearest difference is ads: Onefast at none against HonestFast's shown. Onefast also leads on update cadence (every 2 days vs fortnightly). On price, in-app purchases, 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. HonestFast sells 3 in-app purchases, starting at $0.99 per month and Onefast sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HonestFast ships an update fortnightly, Onefast every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
HonestFast versus Onefast: the parameters behind the verdict, then further details
ParameterHonestFastOnefast
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightlyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size25 MB4 MB
Age rating+44+
DeveloperKhawaja Salman NadeemNguyen Dinh Chung

In-app purchases

3 purchases

HonestFast

Subscriptions2
  • Honest Fast Premium$0.991 Month
  • Premium Yearly$9.991 Year
One-time1
  • Premium Lifetime$14.99
2 purchases

Onefast

Subscriptions1
  • Onefast Pro (Yearly)$9.991 Year
One-time1
  • Onefast Pro (Lifetime)$19.99

Questions

Is HonestFast free?
HonestFast is free to download, with in-app purchases available.
Is Onefast free?
Onefast is free to download, with in-app purchases available.
Do HonestFast or Onefast have ads?
HonestFast shows ads; Onefast does not.
Which is updated more often, HonestFast or Onefast?
HonestFast ships an update fortnightly, and Onefast every 2 days. Most recently, HonestFast was updated on November 5, 2026 and Onefast on October 31, 2026.

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