# Interval Timer Sec+Sec vs Simple Timer & Alarm ListTimer

The clearest difference is rating: Simple Timer & Alarm ListTimer at 4.6 against Interval Timer Sec+Sec's 3.7. Simple Timer & Alarm ListTimer also leads on update cadence (every 5 days vs every 12 months) and ratings volume (302 vs 13). Interval Timer Sec+Sec's advantage is in-app purchases (none vs 4) and iOS requirement (13 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Simple Timer & Alarm ListTimer sells 4 in-app purchases, starting at $0.49 per 7 days. Interval Timer Sec+Sec asks for nothing beyond the download.

Simple Timer & Alarm ListTimer holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Simple Timer & Alarm ListTimer has 302 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 78% of Interval Timer Sec+Sec's written reviews are positive against 89% of Simple Timer & Alarm ListTimer's.

Interval Timer Sec+Sec ships an update every 12 months, Simple Timer & Alarm ListTimer every 5 days. The most recent releases landed on September 24, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Interval Timer Sec+Sec | Simple Timer & Alarm ListTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (13 ratings)](https://appshunter.io/ios/app/interval-timer-sec-plus-sec/id595618563/reviews) | **[4.6 (302 ratings)](https://appshunter.io/ios/app/simple-timer-and-alarm-listtimer/id890352174/reviews)** |
| Number of ratings | 13 | **302** |
| Positive reviews | 77.8% of reviews | **89.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 12 MB | 37 MB |
| Requires iOS | **13** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Lemon LLC](https://appshunter.io/developer/1571526603) |

## What reviewers say

### Interval Timer Sec+Sec

[App page](https://appshunter.io/ios/app/interval-timer-sec-plus-sec/id595618563)

This free interval training timer app uses alarms and vibrations to mark specified second intervals. It automatically tracks repetitions and remembers your settings, making it ideal for High Intensity Interval Training (HIIT). Background operation is limited.

**Highlights:** Second-based interval timing, Alarm and vibration alerts, Repetition counter, Saves interval settings, Suitable for HIIT, Background operation limited

**Features:** Vision Pro support

**In-app purchases:** none


### Simple Timer & Alarm ListTimer

[App page](https://appshunter.io/ios/app/simple-timer-and-alarm-listtimer/id890352174)

This app offers a simple, one-tap timer for various activities like focus, study, and workouts. It displays finish times, works in the background with notifications, and supports vibration for silent mode. An upgrade option removes ads and adds lock screen countdowns and custom sounds.

**Highlights:** One-tap start, Finish times displayed, Background notifications, Vibration for silent mode, Easy repeat function, Battery friendly operation

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ListTime One Weeek | $0.49 | per 7 days |
| ListTimer Plus | $2.49 | per month |
| ListTimer Plus | $14.99 | per year |
| ListTimer Plus | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive user interface
- ⏱️ Seconds display feature (unlike Apple's native timer)
- 🔇 True silent/vibration-only alert option
- 🎯 Multiple simultaneous timers capability
- ✅ Highly reliable and consistent performance

**What reviewers complain about**

- 🐛 Alarm doesn't always trigger when app is closed
- 📢 Intrusive and frequent advertisements
- 🔊 Ad sounds play despite silent timer setting
- ⚙️ Awkward repeat function toggle in settings
- 📱 Requires app to remain open for vibration alerts

**Reported bugs**

- Alarm fails to trigger when app is closed or locked
- Vibration doesn't work reliably in background
- App fails to download (stuck on iCloud icon)
- Notification bar alert insufficient to wake users
- Inconsistent vibration performance in some scenarios

**Requested features**

- 12-hour time format option for end-time display
- Independent alarm volume control (separate from phone volume)
- Simpler repeat function toggle (zero repeat option in settings)
- Text/description field to note what timer is for
- Interval repetition with alerts


## Frequently asked questions

### Is Interval Timer Sec+Sec free?

Interval Timer Sec+Sec is free to download, with no in-app purchases.

### Is Simple Timer & Alarm ListTimer free?

Simple Timer & Alarm ListTimer is free to download, with in-app purchases available.

### Which has better reviews, Interval Timer Sec+Sec or Simple Timer & Alarm ListTimer?

Simple Timer & Alarm ListTimer is rated higher. Interval Timer Sec+Sec averages 3.7 out of 5 from 13 ratings, while Simple Timer & Alarm ListTimer averages 4.6 from 302 ratings.

### Do Interval Timer Sec+Sec or Simple Timer & Alarm ListTimer have ads?

Both Interval Timer Sec+Sec and Simple Timer & Alarm ListTimer show ads.

### Which is updated more often, Interval Timer Sec+Sec or Simple Timer & Alarm ListTimer?

Interval Timer Sec+Sec ships an update every 12 months, and Simple Timer & Alarm ListTimer every 5 days. Most recently, Interval Timer Sec+Sec was updated on September 24, 2026 and Simple Timer & Alarm ListTimer on September 28, 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.*