# The Sidewinder Checklist vs LetsDive

The clearest difference is price: LetsDive at Free against The Sidewinder Checklist's $4.99. LetsDive also leads on in-app purchases (none vs 4) and iOS requirement (13.0 vs 17.0). On rating, ratings volume, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for The Sidewinder Checklist against 5.0 for LetsDive. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

The Sidewinder Checklist ships an update every 6 weeks, LetsDive every 3 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | The Sidewinder Checklist | LetsDive |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/the-sidewinder-checklist/id6476092633/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/letsdive-scuba-diving-log/id6767659647/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 5 MB | 62 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Austin](https://appshunter.io/developer/1708589155) | [LetsDive LLC](https://appshunter.io/developer/1861234980) |

## What reviewers say

### 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 |


### LetsDive

[App page](https://appshunter.io/ios/app/letsdive-scuba-diving-log/id6767659647)

Log your dives, discover new sites, and connect with the global diving community. This app offers a comprehensive logbook with intuitive data entry, custom trip folders, and image galleries. It also serves as a social hub for planning dives, sharing photos, and contributing to a community-driven dive resource.

**Highlights:** Intuitive dive logging, Custom trip folders, Precise GPS location logging, Cross-platform access (mobile & web), Streamlined data import, Dive site community boards, Social connectivity and event planning

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

**In-app purchases:** none


## Frequently asked questions

### Is The Sidewinder Checklist free?

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

### Is LetsDive free?

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

### Which has better reviews, The Sidewinder Checklist or LetsDive?

The Sidewinder Checklist and LetsDive are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do The Sidewinder Checklist or LetsDive have ads?

Neither The Sidewinder Checklist nor LetsDive shows ads.

### Which is updated more often, The Sidewinder Checklist or LetsDive?

The Sidewinder Checklist ships an update every 6 weeks, and LetsDive every 3 months. Most recently, The Sidewinder Checklist was updated on September 9, 2026 and LetsDive on September 18, 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.*