# FastZen vs WeekFit

The clearest difference is in-app purchases: WeekFit at none against FastZen's 5. WeekFit also leads on iOS requirement (18 vs 26.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. FastZen sells 5 in-app purchases, starting at $1.99 per 7 days. WeekFit asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for FastZen against 4.9 for WeekFit. Both are backed by a comparable volume of ratings — 9 and 7 respectively.

FastZen ships an update every 5 days, WeekFit weekly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | FastZen | WeekFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/fastzen-intermittent-fasting/id6744087602/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/weekfit-workout-tracker/id6772648966/reviews) |
| Number of ratings | **9** | 7 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Freemium | **Free** |
| Size | 27 MB | 160 MB |
| Requires iOS | 26.0 | **18** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MefjuDev LLC](https://appshunter.io/developer/1777787735) | [CONG FAN](https://appshunter.io/developer/6772648968) |

## What reviewers say

### FastZen

[App page](https://appshunter.io/ios/app/fastzen-intermittent-fasting/id6744087602)

This app helps you manage your intermittent fasting journey with custom schedules, progress tracking, and smart reminders. Achieve your weight loss and energy goals with a clean, intuitive interface and motivational features.

**Highlights:** Custom fasting schedules (16:8, 20:4, OMAD, up to 168 hours), Progress tracking with history, streaks, and insights, Smart reminders for fasting start and end times, Achievements and milestones for motivation, Calendar view of completed fasts, Light and dark mode, Widgets

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $2.99 | per month |
| 3 Months | $7.99 | per 3 months |
| Yearly | $19.99 | per year |
| Lifetime | $39.99 | one-time |


### WeekFit

[App page](https://appshunter.io/ios/app/weekfit-workout-tracker/id6772648966)

Plan and log your strength training with a weekly schedule. Automatically carry over previous weights and reps, track personal records, and view your progress. Integrates with Apple Health and Apple Watch for a seamless experience.

**Highlights:** Weekly training schedule planner, Automatic weight and rep carryover, Set-by-set workout logging, Personal record tracking, Apple Watch integration, Apple Health sync, Custom exercises and templates

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FastZen free?

FastZen is free to download, with in-app purchases available.

### Is WeekFit free?

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

### Which has better reviews, FastZen or WeekFit?

FastZen is rated higher. FastZen averages 5.0 out of 5 from 9 ratings, while WeekFit averages 4.9 from 7 ratings.

### Do FastZen or WeekFit have ads?

Neither FastZen nor WeekFit shows ads.

### Which is updated more often, FastZen or WeekFit?

FastZen ships an update every 5 days, and WeekFit weekly. Most recently, FastZen was updated on October 9, 2026 and WeekFit on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*