# Interval Timer vs Boulder Strength

The clearest difference is update cadence: Interval Timer at every 4 days against Boulder Strength's every 3 months. Boulder Strength's advantage is iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interval Timer sells 4 in-app purchases, starting at $2.99 per month and Boulder Strength sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update every 4 days, Boulder Strength every 3 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Interval Timer | Boulder Strength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (161 ratings)](https://appshunter.io/ios/app/interval-timer-beepwatch/id1048461382/reviews)** | — |
| Number of ratings | **161** | — |
| Positive reviews | 92.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 36 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scott DeSapio](https://appshunter.io/developer/403110618) | [Dylan Stables](https://appshunter.io/developer/1886824134) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-beepwatch/id1048461382)

Create custom interval timers for workouts, focus sessions, or meditation. Get audio, visual, and haptic cues to stay on track without watching the clock. Track performance and share timers with others.

**Highlights:** Customizable interval timers, Multiple intervals, rounds, warm-up, rest, Audio, visual, and haptic alerts, 14 ready-made presets, Performance tracking and lap recording, Timer sharing, Apple Watch sync

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BeepWatch PRO Monthly | $2.99 | per month |
| BeepWatch PRO Annual | $14.99 | per year |
| BeepWatch 2 PRO | $0.99 | one-time |
| BeepWatch PRO Lifetime | $19.99 | one-time |

**What reviewers like**

- 👍 Great for workouts
- 👍 Easy to use and set up
- 👍 Versatile and customizable
- 👍 Helpful for interval training
- 👍 Useful for various activities

**What reviewers complain about**

- 🐛 Occasional issues with beeping/vibrating
- 🔋 Ads can be intrusive
- 🐛 Some features not very intuitive

**Reported bugs**

- Unlock Pro feature not working for some users
- Timers getting deleted unexpectedly

**Requested features**

- Ability to save/load custom timer settings
- Option to set countdown before timer starts
- Integration with wearable devices


### Boulder Strength

[App page](https://appshunter.io/ios/app/boulder-strength/id6769417276)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Boulder Strength free?

Boulder Strength is free to download, with in-app purchases available.

### Do Interval Timer or Boulder Strength have ads?

Neither Interval Timer nor Boulder Strength shows ads.

### Which is updated more often, Interval Timer or Boulder Strength?

Interval Timer ships an update every 4 days, and Boulder Strength every 3 months. Most recently, Interval Timer was updated on September 26, 2026 and Boulder Strength on September 21, 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.*