# Diveplan vs The Sidewinder Checklist

The clearest difference is in-app purchases: Diveplan at none against The Sidewinder Checklist's 4. Diveplan also leads on price ($0.99 vs $4.99) and iOS requirement (15.1 vs 17.0). On update cadence, ads and device support there is nothing between them.

Diveplan costs $0.99 and The Sidewinder Checklist $4.99 up front. The Sidewinder Checklist sells 4 one-off in-app purchases. Diveplan asks for nothing beyond the download.

Diveplan ships an update monthly, The Sidewinder Checklist every 6 weeks. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Diveplan | The Sidewinder Checklist |
| --- | --- | --- |
| Price | **$0.99** | $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 | **Monthly** | Every 6 weeks |
| Monetization | — | Paid |
| Size | 37 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [CS Bruford Ltd](https://appshunter.io/developer/1697524309) | [Andrew Austin](https://appshunter.io/developer/1708589155) |

## What reviewers say

### Diveplan

[App page](https://appshunter.io/ios/app/diveplan-plan-your-dive/id6451319559)

**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 Diveplan free?

Diveplan costs $0.99, with no in-app purchases.

### Is The Sidewinder Checklist free?

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

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

Neither Diveplan nor The Sidewinder Checklist shows ads.

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

Diveplan ships an update monthly, and The Sidewinder Checklist every 6 weeks. Most recently, Diveplan was updated on September 10, 2026 and The Sidewinder Checklist on September 9, 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.*