# DPC vs ThoughtTrace

The clearest difference is in-app purchases: DPC at none against ThoughtTrace's 1. DPC also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ThoughtTrace sells 1 one-off in-app purchase. DPC asks for nothing beyond the download.

DPC ships an update fortnightly, ThoughtTrace every 3 weeks. The most recent releases landed on October 12, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DPC | ThoughtTrace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dpc-spotter/id6754877255/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 19 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DP-DYNAMIC GmbH](https://appshunter.io/developer/1850691200) | [JUNICHI WATANABE](https://appshunter.io/developer/1837543582) |

## What reviewers say

### DPC

[App page](https://appshunter.io/ios/app/dpc-spotter/id6754877255)

This app provides clarity on aerial objects by identifying manned civilian aviation via ADS-B, MLAT, and Flarm. It uses AR view to help distinguish between drones, aircraft, and other lights in the sky, reducing false alarms and focusing on actual airspace violations.

**Highlights:** AR camera view with telemetry data, ADS-B stream online and offline, Overview of signals on a map, Compass function for aiming, 3D map visualization, Proximity warnings

**Features:** Apple Watch app

**In-app purchases:** none


### ThoughtTrace

[App page](https://appshunter.io/ios/app/thoughttrace-brain-dump-notes/id6777566567)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan (Lifetime) | $4.99 | one-time |


## Frequently asked questions

### Is DPC free?

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

### Is ThoughtTrace free?

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

### Do DPC or ThoughtTrace have ads?

ThoughtTrace shows ads; DPC does not.

### Which is updated more often, DPC or ThoughtTrace?

DPC ships an update fortnightly, and ThoughtTrace every 3 weeks. Most recently, DPC was updated on October 12, 2026 and ThoughtTrace 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.*