# OJ MicroLine® OWD5 vs Pool Buddy

The clearest difference is in-app purchases: OJ MicroLine® OWD5 at none against Pool Buddy's 1. OJ MicroLine® OWD5 also leads on ads (none vs shown). Pool Buddy's advantage is update cadence (every 2 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Pool Buddy sells 1 one-off in-app purchase. OJ MicroLine® OWD5 asks for nothing beyond the download.

OJ MicroLine® OWD5 ships an update every 2 months, Pool Buddy every 2 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OJ MicroLine® OWD5 | Pool Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (5 ratings)](https://appshunter.io/ios/app/oj-microline-owd5/id1326069503/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 43 MB | 35 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OJ ELECTRONICS AS](https://appshunter.io/developer/1326069502) | [Darran Horan](https://appshunter.io/developer/6791649758) |

## What reviewers say

### OJ MicroLine® OWD5

[App page](https://appshunter.io/ios/app/oj-microline-owd5/id1326069503)

Remotely control your home heating system from any location. View and adjust temperatures, manage your heating schedule, set vacation mode, and monitor energy consumption. Save on heating bills while ensuring a comfortable home environment.

**Highlights:** Remote temperature control, View and set heating schedules, Vacation mode scheduling, Energy consumption monitoring, Control multiple thermostats, Access multiple locations

**In-app purchases:** none


### Pool Buddy

[App page](https://appshunter.io/ios/app/pool-buddy-water-testing/id6791649756)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is OJ MicroLine® OWD5 free?

OJ MicroLine® OWD5 is free to download, with no in-app purchases.

### Is Pool Buddy free?

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

### Do OJ MicroLine® OWD5 or Pool Buddy have ads?

Pool Buddy shows ads; OJ MicroLine® OWD5 does not.

### Which is updated more often, OJ MicroLine® OWD5 or Pool Buddy?

OJ MicroLine® OWD5 ships an update every 2 months, and Pool Buddy every 2 days. Most recently, OJ MicroLine® OWD5 was updated on October 16, 2026 and Pool Buddy on October 10, 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.*