# Daily Workout Interval Timer vs The Sidewinder Checklist

The clearest difference is price: Daily Workout Interval Timer at Free against The Sidewinder Checklist's $4.99. Daily Workout Interval Timer also leads on in-app purchases (none vs 4) and iOS requirement (14.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

Daily Workout Interval Timer is free to download; The Sidewinder Checklist costs $4.99 up front. The Sidewinder Checklist sells 4 one-off in-app purchases. Daily Workout Interval Timer asks for nothing beyond the download.

Daily Workout Interval Timer ships an update every 5 weeks, The Sidewinder Checklist every 6 weeks. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Daily Workout Interval Timer | The Sidewinder Checklist |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/the-sidewinder-checklist/id6476092633/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | — | Paid |
| Size | 3 MB | 5 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anatoliy Voropay](https://appshunter.io/developer/459700393) | [Andrew Austin](https://appshunter.io/developer/1708589155) |

## What reviewers say

### Daily Workout Interval Timer

[App page](https://appshunter.io/ios/app/daily-workout-interval-timer/id1631660554)

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

**In-app purchases:** none


### The Sidewinder Checklist

[App page](https://appshunter.io/ios/app/the-sidewinder-checklist/id6476092633)

This app digitizes rebreather diving preparation with user-friendly checklists and countdown timers. It helps manage gear, track build history, and reduce paper waste for a more efficient and eco-friendly diving experience.

**Highlights:** Dedicated rebreather assembly checklists, Countdown timers for pre-breathes, Comprehensive task management for dive prep, Digital gear list with local data saving, Build history with mV values, Timely preparation notifications

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tiny Tip | $0.99 | one-time |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Daily Workout Interval Timer free?

Daily Workout Interval Timer is free to download, with no in-app purchases.

### Is The Sidewinder Checklist free?

The Sidewinder Checklist costs $4.99, and also offers in-app purchases.

### Do Daily Workout Interval Timer or The Sidewinder Checklist have ads?

Neither Daily Workout Interval Timer nor The Sidewinder Checklist shows ads.

### Which is updated more often, Daily Workout Interval Timer or The Sidewinder Checklist?

Daily Workout Interval Timer ships an update every 5 weeks, and The Sidewinder Checklist every 6 weeks. Most recently, Daily Workout Interval Timer was updated on October 6, 2026 and The Sidewinder Checklist on October 13, 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.*