# RunDay vs InterFasting

The clearest difference is review sentiment: InterFasting at 89% against RunDay's 44%. InterFasting also leads on rating (4.8 vs 4.3). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. RunDay sells 10 in-app purchases, starting at $5.99 per month and InterFasting sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

InterFasting holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 201 and 361 respectively. Written reviews point the same way: 44% of RunDay's written reviews are positive against 89% of InterFasting's.

RunDay ships an update weekly, InterFasting every 4 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | RunDay | InterFasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (201 ratings)](https://appshunter.io/ios/app/runday-runwalkstairshiking/id1042937618/reviews) | **[4.8 (361 ratings)](https://appshunter.io/ios/app/interfasting-fasting-tracker/id1467464443/reviews)** |
| Number of ratings | 201 | **361** |
| Positive reviews | 44.0% of reviews | **88.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 381 MB | 99 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [TTAM](https://appshunter.io/developer/1597437956) | [Liviet](https://appshunter.io/developer/1464827169) |

## What reviewers say

### RunDay

[App page](https://appshunter.io/ios/app/runday-runwalkstairshiking/id1042937618)

This app offers full-voice guided running training for beginners and experienced runners. It features customized plans, sound mixing for music, and smartwatch compatibility for seamless workout tracking. Achieve your fitness goals with a virtual trainer and motivational support.

**Highlights:** 100% Full-voice training, Customized running plans, Interval training, Sound mixing system, Watch app support, Smartwatch compatibility, Apple Health integration

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sweat990drops_allday_subs | $5.99 | per month |
| Runday Watch App 30-Day Pass | $2.99 | one-time |
| sweat490drops_watchstd | $2.99 | one-time |
| sweat990drops_watchstd | $5.99 | one-time |
| Runday Watch App 90-Day Pass | $5.99 | one-time |
| sweat1900drops_SlowJogging | $11.99 | one-time |
| sweat2900drops | $17.99 | one-time |
| sweat2900drops_watchstd | $17.99 | one-time |
| sweat2900drops_SlowJogging | $17.99 | one-time |
| Remove AD | $54.99 | one-time |

**What reviewers like**

- 🚀 Great app for beginners
- 👍 Motivational voice coach
- 💡 Ability to run with friends
- 🚀 Efficient 30-minute workouts

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🔋 High battery consumption
- 🔕 Too many ads
- 🐛 Inaccurate distance/pace tracking

**Reported bugs**

- Inability to join crews for some users
- Workout records not saving properly
- Syncing issues between iPhone and Apple Watch
- Inconsistent performance after updates

**Requested features**

- Apple Watch app support
- Customizable voice coach options
- Ability to mute voice coach
- Improved music integration


### InterFasting

[App page](https://appshunter.io/ios/app/interfasting-fasting-tracker/id1467464443)

This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.

**Highlights:** AI fasting schedule recommendations, AI food calorie calculation, Intermittent fasting timer, Customizable fasting plans, All-in-one health tracking, Fasting analysis and reports, Home screen widget

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intermittent Fasting Monthly | $3.99 | per month |
| Intermittent Fasting Monthly | $6.99 | per month |
| Intermittent Fasting Annual | $12.99 | per year |
| Intermittent Fasting Annual | $34.99 | per year |
| Premium User | $12.99 | one-time |


## Frequently asked questions

### Is RunDay free?

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

### Is InterFasting free?

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

### Which has better reviews, RunDay or InterFasting?

InterFasting is rated higher. RunDay averages 4.3 out of 5 from 201 ratings, while InterFasting averages 4.8 from 361 ratings.

### Do RunDay or InterFasting have ads?

Both RunDay and InterFasting show ads.

### Which is updated more often, RunDay or InterFasting?

RunDay ships an update weekly, and InterFasting every 4 days. Most recently, RunDay was updated on November 6, 2026 and InterFasting on November 6, 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.*