# Basic Calc Plus vs OWL

The clearest difference is ads: OWL at none against Basic Calc Plus's shown. OWL also leads on update cadence (every 4 months vs every 17 months) and iOS requirement (8.0 vs 17.6). On price, 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.

Basic Calc Plus ships an update every 17 months, OWL every 4 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Basic Calc Plus | OWL |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 5 MB | 17 MB |
| Requires iOS | 17.6 | **8.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Osamu Ishigami](https://appshunter.io/developer/901265058) | [树 贝](https://appshunter.io/developer/616011285) |

## What reviewers say

### Basic Calc Plus

[App page](https://appshunter.io/ios/app/basic-calc-plus/id926102502)

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

**In-app purchases:** none


### OWL

[App page](https://appshunter.io/ios/app/owl-dvr/id1474905021)

This application connects to a specific dashcam model via Wi-Fi. It allows users to view live footage, control recording, take snapshots, and manage saved videos and images directly from their smartphone.

**Highlights:** Live video feed, Recording control, Snapshot capture, Video playback, File download, File management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Basic Calc Plus free?

Basic Calc Plus is free to download, with no in-app purchases.

### Is OWL free?

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

### Do Basic Calc Plus or OWL have ads?

Basic Calc Plus shows ads; OWL does not.

### Which is updated more often, Basic Calc Plus or OWL?

Basic Calc Plus ships an update every 17 months, and OWL every 4 months. Most recently, Basic Calc Plus was updated on October 3, 2026 and OWL on October 12, 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.*