# Diving logbook vs Stringlab

The clearest difference is rating: Stringlab at 5.0 against Diving logbook's 4.2. Stringlab also leads on in-app purchases (none vs 3) and update cadence (every 2 days vs every 2 months). Diving logbook's advantage is ratings volume (96 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

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

Stringlab holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Diving logbook has 96 ratings behind it against 1, so its average is the more settled of the two.

Diving logbook ships an update every 2 months, Stringlab every 2 days. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Diving logbook | Stringlab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (96 ratings)](https://appshunter.io/ios/app/diving-logbook-dive-number/id949480835/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stringlab-tennis-restringing/id6769932123/reviews)** |
| Number of ratings | **96** | 1 |
| Positive reviews | 76.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 71 MB | 44 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Denys Dykusha](https://appshunter.io/developer/930478942) | [Stringlab](https://appshunter.io/developer/1896701121) |

## What reviewers say

### Diving logbook

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

Easily record your scuba dives with an unlimited logbook. Track dive sites, conditions, equipment, and personal notes. Connect with dive partners and view comprehensive statistics.

**Highlights:** Unlimited dive entries, Extensive dive site database, Detailed dive condition logging, Equipment and gas tracking, Dive partner confirmation, Comprehensive dive statistics, User-added dive sites

**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 |


### Stringlab

[App page](https://appshunter.io/ios/app/stringlab-tennis-restringing/id6769932123)

This app simplifies tennis racket restringing with personalized string recommendations and convenient islandwide door-to-door service. Browse a curated selection of strings and schedule professional restringing from your phone.

**Highlights:** Personalized string recommendations, Curated string catalog, In-app restringing orders, Islandwide door-to-door pickup/delivery, Professional stringing service

**Features:** macOS Compatibility, 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 Stringlab free?

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

### Which has better reviews, Diving logbook or Stringlab?

Stringlab is rated higher. Diving logbook averages 4.2 out of 5 from 96 ratings, while Stringlab averages 5.0 from 1 ratings.

### Do Diving logbook or Stringlab have ads?

Neither Diving logbook nor Stringlab shows ads.

### Which is updated more often, Diving logbook or Stringlab?

Diving logbook ships an update every 2 months, and Stringlab every 2 days. Most recently, Diving logbook was updated on October 24, 2026 and Stringlab on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*