# Seconds Pro Interval Timer vs Sharper Image Smart

The clearest difference is review sentiment: Seconds Pro Interval Timer at 80% against Sharper Image Smart's 9%. Seconds Pro Interval Timer also leads on rating (4.8 vs 1.7) and ratings volume (12K vs 244). Sharper Image Smart's advantage is price (Free vs $7.99) and iOS requirement (8.0 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Sharper Image Smart is free to download; Seconds Pro Interval Timer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Seconds Pro Interval Timer holds the better App Store score, 4.8 against 1.7. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 244, so its average is the more settled of the two. Written reviews point the same way: 80% of Seconds Pro Interval Timer's written reviews are positive against 9% of Sharper Image Smart's.

Seconds Pro Interval Timer ships an update fortnightly, Sharper Image Smart every 10 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Seconds Pro Interval Timer | Sharper Image Smart |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews)** | [1.7 (244 ratings)](https://appshunter.io/ios/app/sharper-image-smart/id1360087532/reviews) |
| Number of ratings | **12K** | 244 |
| Positive reviews | **79.7% of reviews** | 8.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Paid | **Free** |
| Best chart rank | **#7** | — |
| Size | 94 MB | 4 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [MerchSource, LLC](https://appshunter.io/developer/1246580470) |

## What reviewers say

### Seconds Pro Interval Timer

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

**Currently charting:** #7 Top Paid · Health & Fitness, #87 Top Paid (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


### Sharper Image Smart

[App page](https://appshunter.io/ios/app/sharper-image-smart/id1360087532)

This application enables multiple household members to set and monitor weight loss objectives. It utilizes Bluetooth technology for seamless tracking and can sync data with the Apple Health app if authorized.

**Highlights:** Multiple user support, Weight loss goal setting, Bluetooth tracking, Apple Health sync, Effortless tracking

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Consistent and detailed
- 💡 Good functionality

**What reviewers complain about**

- 🐛 Impedance error
- 🐛 Bluetooth connectivity issues
- 🐛 Fails to save/sync data
- 🐛 Doesn't calculate all metrics
- 🐛 Stuck on kilograms

**Reported bugs**

- App crashes
- Doesn't work with latest iOS
- Doesn't save weight/body composition data

**Requested features**

- Ability to export data
- Stay logged in
- Half-inch height options


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

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

### Is Sharper Image Smart free?

Sharper Image Smart is free to download, with no in-app purchases.

### Which has better reviews, Seconds Pro Interval Timer or Sharper Image Smart?

Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Sharper Image Smart averages 1.7 from 244 ratings.

### Do Seconds Pro Interval Timer or Sharper Image Smart have ads?

Neither Seconds Pro Interval Timer nor Sharper Image Smart shows ads.

### Which is updated more often, Seconds Pro Interval Timer or Sharper Image Smart?

Seconds Pro Interval Timer ships an update fortnightly, and Sharper Image Smart every 10 days. Most recently, Seconds Pro Interval Timer was updated on October 17, 2026 and Sharper Image Smart on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*