# Seconds Interval Timer vs Q Master for F3

The clearest difference is in-app purchases: Q Master for F3 at none against Seconds Interval Timer's 1. Q Master for F3 also leads on review sentiment (100% vs 74%) and rating (5.0 vs 4.7). Seconds Interval Timer's advantage is ratings volume (24K vs 6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase. Q Master for F3 asks for nothing beyond the download.

Q Master for F3 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 74% of Seconds Interval Timer's written reviews are positive against 100% of Q Master for F3's.

Seconds Interval Timer ships an update monthly, Q Master for F3 every 4 weeks. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Q Master for F3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/q-master-for-f3/id6756852098/reviews)** |
| Number of ratings | **24K** | 6 |
| Positive reviews | 74.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 95 MB | 47 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Ian Wilkinson](https://appshunter.io/developer/1480970900) |

## What reviewers say

### Seconds Interval Timer

[App page](https://appshunter.io/ios/app/seconds-interval-timer/id475816966)

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

**Highlights:** Full-screen colored display, Templates for HIIT, Tabata, Circuit Training, Voice and audio alerts, Music assignment per interval, Background operation, Apple Health integration, Stopwatch and countdown timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Version | $7.99 | one-time |

**What reviewers like**

- 🚀 Great workout app
- 👍 Customizable and user-friendly
- 🔒 Reliable and stable
- 💡 Versatile for various workouts
- 👍 Easy to create and edit timers

**What reviewers complain about**

- 🐛 Occasional audio issues
- 🔍 Limited Apple Watch integration
- 💰 Paid version required for full functionality
- 🕰️ Time-consuming to set up complex workouts

**Reported bugs**

- Timer sometimes stops working unexpectedly
- Issues with restoring purchases on new devices

**Requested features**

- Ability to change beep/alert volume independently
- Option to delay transition between intervals
- Sync workouts across devices
- More preset workout templates
- Heart rate monitoring integration


### Q Master for F3

[App page](https://appshunter.io/ios/app/q-master-for-f3/id6756852098)

This app helps users plan and track workouts with clear typography and a dark mode option. It includes features for sharing routines, finding local workouts, and using a tabata timer or random drill generator. It's designed to make morning exercise sessions more manageable.

**Highlights:** Assemble and plan workouts, Share routines on social media, Find local workouts, Tabata timer, Random drill generator, Dark mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Seconds Interval Timer free?

Seconds Interval Timer is free to download, with in-app purchases available.

### Is Q Master for F3 free?

Q Master for F3 is free to download, with no in-app purchases.

### Which has better reviews, Seconds Interval Timer or Q Master for F3?

Q Master for F3 is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Q Master for F3 averages 5.0 from 6 ratings.

### Do Seconds Interval Timer or Q Master for F3 have ads?

Neither Seconds Interval Timer nor Q Master for F3 shows ads.

### Which is updated more often, Seconds Interval Timer or Q Master for F3?

Seconds Interval Timer ships an update monthly, and Q Master for F3 every 4 weeks. Most recently, Seconds Interval Timer was updated on October 21, 2026 and Q Master for F3 on October 11, 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.*