# Seconds Interval Timer vs Periodic Timer + Custom Sounds

The clearest difference is price: Seconds Interval Timer at Free against Periodic Timer + Custom Sounds's $4.99. Seconds Interval Timer also leads on rating (4.7 vs 3.9) and ratings volume (24K vs 75). Periodic Timer + Custom Sounds's advantage is chart position (#57 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Seconds Interval Timer is free to download; Periodic Timer + Custom Sounds costs $4.99 up front. Seconds Interval Timer sells 1 one-off in-app purchase and Periodic Timer + Custom Sounds sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Seconds Interval Timer holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 75, so its average is the more settled of the two. Written reviews point the same way: 75% of Seconds Interval Timer's written reviews are positive against 55% of Periodic Timer + Custom Sounds's.

Seconds Interval Timer ships an update monthly, Periodic Timer + Custom Sounds every 2 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Seconds Interval Timer | Periodic Timer + Custom Sounds |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews)** | [3.9 (75 ratings)](https://appshunter.io/ios/app/periodic-timer-plus-custom-sounds/id1175807581/reviews) |
| Number of ratings | **24K** | 75 |
| Positive reviews | **74.5% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#57** |
| Size | 99 MB | 17 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Vladimir Kelin](https://appshunter.io/developer/933241655) |

## 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


### Periodic Timer + Custom Sounds

[App page](https://appshunter.io/ios/app/periodic-timer-plus-custom-sounds/id1175807581)

**Currently charting:** #57 Top Paid · Health & Fitness (US App Store)

This app provides a simple, repeating interval timer that works in the background. It offers customizable sounds, vibration, and flexible output modes for various activities like fitness, cooking, and learning. The interface is designed to be minimalist and distraction-free.

**Highlights:** Repeating interval timer, Customizable sounds and vibration, Works in the background, Long intervals up to 99 hours, Multiple timer output modes, Shake to start functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip a Banana | $0.99 | one-time |
| Tip a Coffee | $3.99 | one-time |
| Donate: Bust the project! | $9.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 👍 Perfect for workouts
- 👍 No ads, no nonsense
- 👍 Good app, like it
- 👍 Very practical

**What reviewers complain about**

- 😩 Nagging to write reviews
- 😩 Doesn't work in background
- 😩 Not loud enough
- 😩 Vibration too short
- 😩 Paid version lacks features

**Reported bugs**

- Doesn't work in background
- Timer doesn't work for over 59 minutes on watch
- Custom alert audio not working
- Alarm not working after payment
- App doesn't open

**Requested features**

- More sound options
- Ability to set alarm for a time of day
- Explanation for changing display mode
- Simultaneous timers
- Ability to set start/end times and weekdays


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Periodic Timer + Custom Sounds free?

Periodic Timer + Custom Sounds costs $4.99, and also offers in-app purchases.

### Which has better reviews, Seconds Interval Timer or Periodic Timer + Custom Sounds?

Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Periodic Timer + Custom Sounds averages 3.9 from 75 ratings.

### Do Seconds Interval Timer or Periodic Timer + Custom Sounds have ads?

Neither Seconds Interval Timer nor Periodic Timer + Custom Sounds shows ads.

### Which is updated more often, Seconds Interval Timer or Periodic Timer + Custom Sounds?

Seconds Interval Timer ships an update monthly, and Periodic Timer + Custom Sounds every 2 months. Most recently, Seconds Interval Timer was updated on October 23, 2026 and Periodic Timer + Custom Sounds on October 23, 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.*