# TTP Log Book App vs Dolphin Spotter

The clearest difference is update cadence: Dolphin Spotter at weekly against TTP Log Book App's every 2 months. TTP Log Book App's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TTP Log Book App ships an update every 2 months, Dolphin Spotter weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TTP Log Book App | Dolphin Spotter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 31 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Corrodere limited](https://appshunter.io/developer/1581980770) | [Neil Thomas](https://appshunter.io/developer/363455395) |

## What reviewers say

### TTP Log Book App

[App page](https://appshunter.io/ios/app/ttp-log-book-app/id1581983993)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dolphin Spotter

[App page](https://appshunter.io/ios/app/dolphin-spotter/id6484592546)

Easily record and share your dolphin sightings with a global community. Document locations, species, and behaviors, and enhance your entries with photos. Receive real-time notifications of nearby sightings to never miss an encounter.

**Highlights:** Effortless sighting recording, Location mapping, Detailed sighting input, Photo documentation, Real-time sighting notifications, Community sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is TTP Log Book App free?

TTP Log Book App is free to download, with no in-app purchases.

### Is Dolphin Spotter free?

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

### Do TTP Log Book App or Dolphin Spotter have ads?

Neither TTP Log Book App nor Dolphin Spotter shows ads.

### Which is updated more often, TTP Log Book App or Dolphin Spotter?

TTP Log Book App ships an update every 2 months, and Dolphin Spotter weekly. Most recently, TTP Log Book App was updated on October 25, 2026 and Dolphin Spotter on October 28, 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.*