# Simbio PLOD vs IsItCorrect PAT

Simbio PLOD and IsItCorrect PAT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Simbio PLOD ships an update every 8 months, IsItCorrect PAT every 16 months. The most recent releases landed on October 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Simbio PLOD | IsItCorrect PAT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 16 months |
| Size | 87 MB | 1 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simbio by Digital Terrain](https://appshunter.io/developer/1561068653) | [David Storey](https://appshunter.io/developer/1577093950) |

## What reviewers say

### Simbio PLOD

[App page](https://appshunter.io/ios/app/simbio-plod/id1561068651)

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

**In-app purchases:** none


### IsItCorrect PAT

[App page](https://appshunter.io/ios/app/isitcorrect-pat/id1585178782)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simbio PLOD free?

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

### Is IsItCorrect PAT free?

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

### Do Simbio PLOD or IsItCorrect PAT have ads?

Neither Simbio PLOD nor IsItCorrect PAT shows ads.

### Which is updated more often, Simbio PLOD or IsItCorrect PAT?

Simbio PLOD ships an update every 8 months, and IsItCorrect PAT every 16 months. Most recently, Simbio PLOD was updated on October 25, 2026 and IsItCorrect PAT on September 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.*