# Seconds Interval Timer vs Next Up

The clearest difference is ratings volume: Seconds Interval Timer at 24K against Next Up's 2.8K. Next Up's advantage is iOS requirement (13.0 vs 18.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase and Next Up sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Seconds Interval Timer against 4.7 for Next Up. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 2.8K, so its average is the more settled of the two. Written reviews split almost evenly too, at 75% and 76% positive.

Seconds Interval Timer ships an update monthly, Next Up every 5 weeks. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Next Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | [4.7 (2.8K ratings)](https://appshunter.io/ios/app/next-up-interval-timer/id1376927836/reviews) |
| Number of ratings | **24K** | 2.8K |
| Positive reviews | 75.0% of reviews | **76.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 22 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Alysha Kwok](https://appshunter.io/developer/1376927835) |

## 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


### Next Up

[App page](https://appshunter.io/ios/app/next-up-interval-timer/id1376927836)

Create and customize interval timers with detailed options for reps, sets, colors, and sounds. Offers flexible display modes, quick actions for navigation, and background notifications. Organize timers with folders and choose between light and dark themes.

**Highlights:** Customizable intervals (reps, sets, colors, sounds), Detailed and full-screen display modes, Portrait and landscape orientation support, Quick actions for navigation and editing, Background notifications, Timer organization with folders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Syncing and Sharing | $3.99 | per month |
| Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Next Up free?

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

### Which has better reviews, Seconds Interval Timer or Next Up?

Seconds Interval Timer and Next Up are both rated 4.7 out of 5 on the App Store, from 24K and 2.8K ratings respectively.

### Do Seconds Interval Timer or Next Up have ads?

Neither Seconds Interval Timer nor Next Up shows ads.

### Which is updated more often, Seconds Interval Timer or Next Up?

Seconds Interval Timer ships an update monthly, and Next Up every 5 weeks. Most recently, Seconds Interval Timer was updated on September 25, 2026 and Next Up on September 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.*