# Interval Timer vs Simple Circuit Interval Timer

The clearest difference is ads: Simple Circuit Interval Timer at none against Interval Timer's shown. Simple Circuit Interval Timer also leads on review sentiment (100% vs 73%) and iOS requirement (10.0 vs 13.0). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month and Simple Circuit Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update every 9 days, Simple Circuit Interval Timer every 5 days. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Interval Timer | Simple Circuit Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews)** | — |
| Number of ratings | **19K** | — |
| Positive reviews | 72.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 143 MB | 113 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [Timothy Shepherd](https://appshunter.io/developer/1479749822) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### Simple Circuit Interval Timer

[App page](https://appshunter.io/ios/app/simple-circuit-interval-timer/id1505323062)

This app provides customizable interval timers for HIIT, circuit training, and yoga. It also features a daily plank challenge to build core strength at home without equipment. Enjoy stunning visuals and offline workout capabilities.

**Highlights:** Customizable interval timers, HIIT, circuit, and Tabata support, Daily plank challenge, Offline workout capability, Customizable themes and layouts, REP meter for pace tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Circuit Trainer: Pro | $1.99 | one-time |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Simple Circuit Interval Timer free?

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

### Do Interval Timer or Simple Circuit Interval Timer have ads?

Interval Timer shows ads; Simple Circuit Interval Timer does not.

### Which is updated more often, Interval Timer or Simple Circuit Interval Timer?

Interval Timer ships an update every 9 days, and Simple Circuit Interval Timer every 5 days. Most recently, Interval Timer was updated on October 17, 2026 and Simple Circuit Interval Timer on October 4, 2026.

---

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