# Interval Timer Sec+Sec vs Timer Trial

The clearest difference is ads: Timer Trial at none against Interval Timer Sec+Sec's shown. Timer Trial also leads on update cadence (every 10 days vs every 12 months). Interval Timer Sec+Sec's advantage is iOS requirement (13 vs 16.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Interval Timer Sec+Sec ships an update every 12 months, Timer Trial every 10 days. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Interval Timer Sec+Sec | Timer Trial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (13 ratings)](https://appshunter.io/ios/app/interval-timer-sec-plus-sec/id595618563/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 12 MB | 1 MB |
| Requires iOS | **13** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Andrea Biancat](https://appshunter.io/developer/1593009801) |

## 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


### Timer Trial

[App page](https://appshunter.io/ios/app/timer-trial/id6467506503)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer Sec+Sec free?

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

### Is Timer Trial free?

Timer Trial is free to download, with no in-app purchases.

### Do Interval Timer Sec+Sec or Timer Trial have ads?

Interval Timer Sec+Sec shows ads; Timer Trial does not.

### Which is updated more often, Interval Timer Sec+Sec or Timer Trial?

Interval Timer Sec+Sec ships an update every 12 months, and Timer Trial every 10 days. Most recently, Interval Timer Sec+Sec was updated on October 11, 2026 and Timer Trial on October 2, 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.*