# Diving logbook vs TPPC PoloACT

The clearest difference is in-app purchases: TPPC PoloACT at none against Diving logbook's 3. TPPC PoloACT also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Diving logbook sells 3 in-app purchases, starting at $1.99 per month. TPPC PoloACT asks for nothing beyond the download.

Diving logbook ships an update monthly, TPPC PoloACT every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Diving logbook | TPPC PoloACT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (96 ratings)](https://appshunter.io/ios/app/diving-logbook-dive-number/id949480835/reviews)** | — |
| Number of ratings | **96** | — |
| Positive reviews | 76.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 9 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Denys Dykusha](https://appshunter.io/developer/930478942) | [ANDREW PAUL BOUDIER](https://appshunter.io/developer/6773771168) |

## What reviewers say

### Diving logbook

[App page](https://appshunter.io/ios/app/diving-logbook-dive-number/id949480835)

Easily log all your scuba diving details, from dive sites and conditions to equipment and observations. Track your dive history, including depth, time, and gas usage, with unlimited entries and an extensive dive site database. Connect with dive partners and record your underwater experiences.

**Highlights:** Unlimited dive entries, Detailed dive parameters (depth, time, gas), Dive site mapping and database, Record dive conditions and equipment, Log notes and marine life sightings, Partner confirmation for dives, Dive statistics and total dive time

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| support DiveNumber every month | $1.99 | per month |
| support DiveNumber every year | $1.99 | per year |
| support Dive Number one time | $4.99 | one-time |


### TPPC PoloACT

[App page](https://appshunter.io/ios/app/tppc-poloact/id6773771166)

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

**In-app purchases:** none


## Frequently asked questions

### Is Diving logbook free?

Diving logbook is free to download, with in-app purchases available.

### Is TPPC PoloACT free?

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

### Do Diving logbook or TPPC PoloACT have ads?

Neither Diving logbook nor TPPC PoloACT shows ads.

### Which is updated more often, Diving logbook or TPPC PoloACT?

Diving logbook ships an update monthly, and TPPC PoloACT every 3 weeks. Most recently, Diving logbook was updated on November 6, 2026 and TPPC PoloACT on October 31, 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.*