# Dive Log vs Time to Surface

The clearest difference is price: Time to Surface at Free against Dive Log's $14.99. Time to Surface also leads on in-app purchases (none vs 13) and update cadence (every 2 days vs monthly). Dive Log's advantage is ratings volume (106 vs 1) and chart position (#147 vs unranked). On ads there is nothing between them.

Time to Surface is free to download; Dive Log costs $14.99 up front. Dive Log sells 11 one-off in-app purchases. Time to Surface asks for nothing beyond the download.

Time to Surface holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Dive Log has 106 ratings behind it against 1, so its average is the more settled of the two.

Dive Log ships an update monthly, Time to Surface every 2 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Dive Log | Time to Surface |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [4.7 (106 ratings)](https://appshunter.io/ios/app/dive-log/id301049600/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/time-to-surface-deco-planner/id6803187271/reviews)** |
| Number of ratings | **106** | 1 |
| Positive reviews | 83.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#147** | — |
| Size | 33 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [RUSTAM ISMAILOV](https://appshunter.io/developer/6799582362) |

## What reviewers say

### Dive Log

[App page](https://appshunter.io/ios/app/dive-log/id301049600)

**Currently charting:** #147 Top Paid · Sports (US App Store)

Log your SCUBA dives with detailed information, including GPS coordinates and dive buddy details. Supports metric and imperial units, and integrates with desktop software for comprehensive dive history management.

**Highlights:** SCUBA diving logbook, GPS coordinate capture, Dive buddy integration, Dive data and statistics, Metric and Imperial units, Dive computer data import, Bluetooth LE transfer

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suunto Bluetooth Download | $2.99 | one-time |
| Mares Bluetooth Download | $2.99 | one-time |
| Crest Bluetooth Download | $2.99 | one-time |
| Shearwater Download | $2.99 | one-time |
| bluebuddy Download | $2.99 | one-time |
| SCUBAPRO Download | $2.99 | one-time |
| Pelagic Bluetooth Download | $2.99 | one-time |
| Cressi Bluetooth Download | $2.99 | one-time |
| Ratio Bluetooth Download | $2.99 | one-time |
| Halcyon Bluetooth Download | $2.99 | one-time |
| DCbuddy Support | $4.99 | one-time |


### Time to Surface

[App page](https://appshunter.io/ios/app/time-to-surface-deco-planner/id6803187271)

This technical dive planner calculates staged decompression for dives up to 56 meters. It supports multiple bottom gases and one deco bottle, offering detailed gas planning, runtime tracking, and contingency solutions. The app also accounts for repetitive dives and provides a printable wetnote layout.

**Highlights:** Staged decompression planning (15-56m), Support for six bottom gases and one deco gas, Twin cylinder configuration, Bühlmann ZH-L16C model with adjustable gradient factors, Adjustable ppO2 and descent rates, Repetitive dive planning, Contingency scenario calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is Dive Log free?

Dive Log costs $14.99, and also offers in-app purchases.

### Is Time to Surface free?

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

### Which has better reviews, Dive Log or Time to Surface?

Time to Surface is rated higher. Dive Log averages 4.7 out of 5 from 106 ratings, while Time to Surface averages 5.0 from 1 ratings.

### Do Dive Log or Time to Surface have ads?

Neither Dive Log nor Time to Surface shows ads.

### Which is updated more often, Dive Log or Time to Surface?

Dive Log ships an update monthly, and Time to Surface every 2 days. Most recently, Dive Log was updated on October 18, 2026 and Time to Surface on October 7, 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.*