# FastTime vs RoutineFlow

The clearest difference is ads: RoutineFlow at none against FastTime's shown. RoutineFlow also leads on update cadence (every 8 days vs every 6 weeks). FastTime's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FastTime ships an update every 6 weeks, RoutineFlow every 8 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FastTime | RoutineFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fasttime-fasting-timer-and-log/id6761371909/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Ad-supported | — |
| Size | 40 MB | 4 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Seulki Eom](https://appshunter.io/developer/1718927408) | [HyunJoon Kang](https://appshunter.io/developer/1831281544) |

## What reviewers say

### FastTime

[App page](https://appshunter.io/ios/app/fasttime-fasting-timer-and-log/id6761371909)

Track your fasting periods and daily weight with a simple timer and calendar. Set custom fasting and eating windows, monitor progress with charts, and log weight changes easily. Personalize your experience with reminders and theme options.

**Highlights:** Simple fasting timer, Customizable fasting windows, Weight tracking calendar, Progress charts and statistics, Goal alerts and reminders, Light and dark mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RoutineFlow

[App page](https://appshunter.io/ios/app/routineflow-daily-routine/id6800322900)

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

**In-app purchases:** none


## Frequently asked questions

### Is FastTime free?

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

### Is RoutineFlow free?

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

### Do FastTime or RoutineFlow have ads?

FastTime shows ads; RoutineFlow does not.

### Which is updated more often, FastTime or RoutineFlow?

FastTime ships an update every 6 weeks, and RoutineFlow every 8 days. Most recently, FastTime was updated on November 5, 2026 and RoutineFlow on October 31, 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.*