# Sensor vs Kalender & Planer

The clearest difference is in-app purchases: Sensor at none against Kalender & Planer's 3. Kalender & Planer's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Kalender & Planer sells 3 in-app purchases, starting at $2.99 per 3 months. Sensor asks for nothing beyond the download.

Sensor ships an update every 2 months, Kalender & Planer weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sensor | Kalender & Planer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sensor-app/id1466399692/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 49 MB | 18 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Volker Schmitt](https://appshunter.io/developer/1466399691) | [Teodor Dimitrov](https://appshunter.io/developer/6819069265) |

## What reviewers say

### Sensor

[App page](https://appshunter.io/ios/app/sensor-app/id1466399692)

Access and utilize all your device's sensors, including GPS, gyroscope, and altimeter. Explore detailed readings for navigation, fitness, and application development. Transform your interaction with the world through insightful mobile data.

**Highlights:** Access GPS, Gyroscope, Acceleration Sensor, Utilize Magnetometer, Altimeter, Pressure Sensor, View Attitude (roll, pitch, yaw), Comprehensive sensor data suite, Intuitive access to hardware features

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases:** none


### Kalender & Planer

[App page](https://appshunter.io/ios/app/kalender-and-planer-nicecal/id6819069262)

**Features:** Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nicecal Pro – Quarterly | $2.99 | per 3 months |
| Nicecal Pro – Yearly | $8.99 | per year |
| Nicecal Pro – Lifetime | $22.99 | one-time |


## Frequently asked questions

### Is Sensor free?

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

### Is Kalender & Planer free?

Kalender & Planer is free to download, with in-app purchases available.

### Do Sensor or Kalender & Planer have ads?

Sensor shows ads; Kalender & Planer does not.

### Which is updated more often, Sensor or Kalender & Planer?

Sensor ships an update every 2 months, and Kalender & Planer weekly. Most recently, Sensor was updated on November 3, 2026 and Kalender & Planer 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.*