# sonsor vs Level plus

The clearest difference is price: sonsor at Free against Level plus's $12.99. sonsor also leads on iOS requirement (15.6 vs 17.0). Level plus's advantage is review sentiment (100% vs 88%). On update cadence, ads, in-app purchases and device support there is nothing between them.

sonsor is free to download; Level plus costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

sonsor ships an update every 3 weeks, Level plus fortnightly. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | sonsor | Level plus |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 44 MB | 25 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [pironex GmbH](https://appshunter.io/developer/1003725747) | [DIETER AUGUST DR. ACKERMANN](https://appshunter.io/developer/1796660549) |

## What reviewers say

### sonsor

[App page](https://appshunter.io/ios/app/sonsor-alarm-system/id6474242682)

Receive real-time alerts for break-ins and environmental data directly on your phone. This system detects various security threats and monitors conditions like fire, mold risk, sound, air quality, and temperature. Track sensor data live and customize your alerts and device management.

**Highlights:** Break-in detection, Environmental data monitoring, Real-time sensor tracking, Customizable alerts, Multi-device and member support, LTE and GPS integration

**In-app purchases:** none


### Level plus

[App page](https://appshunter.io/ios/app/level-plus/id6742115339)

Measure your RV or caravan's tilt with your smartphone or tablet. Connect external sensors for precise leveling and calculate the exact height needed at each wheel to achieve a horizontal position.

**Highlights:** Measure vehicle tilt front-to-back and side-to-side, Use internal smartphone/tablet sensors, Connect external WitMotion sensors via Bluetooth, Calculate individual wheel height adjustments, Adjustable wheel and axle distances, Sensor calibration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is sonsor free?

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

### Is Level plus free?

Level plus costs $12.99, with no in-app purchases.

### Do sonsor or Level plus have ads?

Neither sonsor nor Level plus shows ads.

### Which is updated more often, sonsor or Level plus?

sonsor ships an update every 3 weeks, and Level plus fortnightly. Most recently, sonsor was updated on October 6, 2026 and Level plus on October 9, 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.*