# Messprotokoll 365 vs Circuit Planner

The clearest difference is price: Messprotokoll 365 at Free against Circuit Planner's $7.99. Messprotokoll 365 also leads on update cadence (weekly vs every 3 weeks). Circuit Planner's advantage is in-app purchases (none vs 3) and review sentiment (60% vs 33%). On ads, device support and iOS requirement there is nothing between them.

Messprotokoll 365 is free to download; Circuit Planner costs $7.99 up front. Messprotokoll 365 sells 3 in-app purchases, starting at $2.49 per month. Circuit Planner asks for nothing beyond the download.

Messprotokoll 365 ships an update weekly, Circuit Planner every 3 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Messprotokoll 365 | Circuit Planner |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Positive reviews | 33.3% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 10 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reiko Klein](https://appshunter.io/developer/984943326) | [Axel Hauschild](https://appshunter.io/developer/981831700) |

## What reviewers say

### Messprotokoll 365

[App page](https://appshunter.io/ios/app/messprotokoll-365/id1605362120)

Easily create and manage measurement logs for electrical installations, devices, and charging stations. Save data in a database and export as PDF. Streamline recurring entries by copying circuits and using customizable dropdown menus for common fields.

**Highlights:** Create measurement logs for electrical installations, Save logs in a database, Export logs as PDF, Copy recurring circuits and fields, Use customizable dropdown menus, Barcode scanning for quick retrieval, Drag & drop data transfer between apps

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alle Funktionen für 1 Monat | $2.49 | per month |
| Alle Funktionen für 6 Momate | $10.49 | per 6 months |
| Alle Funktionen für 1 Jahr | $17.99 | per year |


### Circuit Planner

[App page](https://appshunter.io/ios/app/circuit-planner/id6472896392)

Design professional IEC circuit diagrams with a user-friendly interface. Access a vast library of symbols, utilize automatic connection features, and export your plans in PDF format. Ideal for electrical engineering projects.

**Highlights:** User-friendly interface for circuit diagram creation, 1056 integrated IEC circuit diagram symbols, Automatic connection system for precise wiring, Export diagrams in PDF format, Supports A4, A3, A2 formats with up to 20 drawing sheets, Automatic backup of project data

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

**In-app purchases:** none


## Frequently asked questions

### Is Messprotokoll 365 free?

Messprotokoll 365 is free to download, with in-app purchases available.

### Is Circuit Planner free?

Circuit Planner costs $7.99, with no in-app purchases.

### Do Messprotokoll 365 or Circuit Planner have ads?

Neither Messprotokoll 365 nor Circuit Planner shows ads.

### Which is updated more often, Messprotokoll 365 or Circuit Planner?

Messprotokoll 365 ships an update weekly, and Circuit Planner every 3 weeks. Most recently, Messprotokoll 365 was updated on October 10, 2026 and Circuit Planner on October 25, 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.*