# Seconds Pro Interval Timer vs TempoFlow | Routine Builder

The clearest difference is price: TempoFlow | Routine Builder at Free against Seconds Pro Interval Timer's $7.99. Seconds Pro Interval Timer's advantage is in-app purchases (none vs 1) and ratings volume (12K vs 59). On rating, update cadence, ads and device support there is nothing between them.

TempoFlow | Routine Builder is free to download; Seconds Pro Interval Timer costs $7.99 up front. TempoFlow | Routine Builder sells 1 in-app purchase, starting at $14.99 per year. Seconds Pro Interval Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Seconds Pro Interval Timer against 4.7 for TempoFlow | Routine Builder. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 59, so its average is the more settled of the two. Written reviews are what separate them: 80% of Seconds Pro Interval Timer's written reviews are positive against 70% of TempoFlow | Routine Builder's.

Seconds Pro Interval Timer ships an update fortnightly, TempoFlow | Routine Builder every 3 weeks. Both last shipped on September 26, 2026.

## The numbers

| Metric | Seconds Pro Interval Timer | TempoFlow | Routine Builder |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews)** | [4.7 (59 ratings)](https://appshunter.io/ios/app/tempoflow-routine-builder/id6738896658/reviews) |
| Number of ratings | **12K** | 59 |
| Positive reviews | **79.9% of reviews** | 70.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | **Freemium** |
| Best chart rank | **#8** | — |
| Size | 94 MB | 102 MB |
| Requires iOS | **18.0** | 18.1 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Electric Bloom LLC](https://appshunter.io/developer/1782442885) |

## What reviewers say

### Seconds Pro Interval Timer

[App page](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811)

**Currently charting:** #8 Top Paid · Health & Fitness (US App Store)

This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.

**Highlights:** Full screen colored display, Templates for HIIT, Tabata, Circuit Training, Speaks interval names and provides warnings, Assign music per interval, Runs in background, Share interval timers, Apple Health integration

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Great updates
- 🤖 Amazing voice prompts
- 👍 Easy to use
- 🎨 Highly customizable
- 🔧 Versatile for various workouts

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔌 Music volume issues
- 🔍 Complicated setup for some features
- 🌐 Sync/sharing issues between devices
- 🔇 Inconsistent audio cues

**Reported bugs**

- Intervals randomly pausing or skipping
- Music volume issues when launching the app
- Inconsistent audio cues and countdown
- Sync issues between devices

**Requested features**

- Ability to lock Apple Watch screen
- Option to see more than just the next exercise
- Fractional time settings (e.g. 7.74 seconds)
- More voice/audio customization options
- Improved sync between iPhone and iPad


### TempoFlow | Routine Builder

[App page](https://appshunter.io/ios/app/tempoflow-routine-builder/id6738896658)

This app helps users build and time custom workout routines with precision. It's designed for instructors and enthusiasts of time-based fitness like Lagree and Pilates, offering a simple, visual interface for seamless session management.

**Highlights:** Build custom timed routines, Run classes on iPhone/Apple Watch, Save and reuse routines, Second-by-second timing accuracy, Visual, tap-to-run interface

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

Seconds Pro Interval Timer costs $7.99, with no in-app purchases.

### Is TempoFlow | Routine Builder free?

TempoFlow | Routine Builder is free to download, with in-app purchases available.

### Which has better reviews, Seconds Pro Interval Timer or TempoFlow | Routine Builder?

Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while TempoFlow | Routine Builder averages 4.7 from 59 ratings.

### Do Seconds Pro Interval Timer or TempoFlow | Routine Builder have ads?

Neither Seconds Pro Interval Timer nor TempoFlow | Routine Builder shows ads.

### Which is updated more often, Seconds Pro Interval Timer or TempoFlow | Routine Builder?

Seconds Pro Interval Timer ships an update fortnightly, and TempoFlow | Routine Builder every 3 weeks. Most recently, Seconds Pro Interval Timer was updated on September 26, 2026 and TempoFlow | Routine Builder on September 26, 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.*