# Data Engineer Cert Prep vs Plant Identifier

The clearest difference is in-app purchases: Data Engineer Cert Prep at none against Plant Identifier's 2. Plant Identifier's advantage is update cadence (every 5 months vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Plant Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Data Engineer Cert Prep asks for nothing beyond the download.

Data Engineer Cert Prep ships an update every 13 months, Plant Identifier every 5 months. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Data Engineer Cert Prep | Plant Identifier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 months** |
| Size | 1 MB | 25 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DjamgaTech Corp](https://appshunter.io/developer/969000181) | [AZTTY LLC](https://appshunter.io/developer/1756105077) |

## What reviewers say

### Data Engineer Cert Prep

[App page](https://appshunter.io/ios/app/data-engineer-cert-prep/id6566170013)

**Features:** Vision Pro support

**In-app purchases:** none


### Plant Identifier

[App page](https://appshunter.io/ios/app/plant-identifier-scan-plant/id6755621088)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Data Engineer Cert Prep free?

Data Engineer Cert Prep is free to download, with no in-app purchases.

### Is Plant Identifier free?

Plant Identifier is free to download, with in-app purchases available.

### Do Data Engineer Cert Prep or Plant Identifier have ads?

Neither Data Engineer Cert Prep nor Plant Identifier shows ads.

### Which is updated more often, Data Engineer Cert Prep or Plant Identifier?

Data Engineer Cert Prep ships an update every 13 months, and Plant Identifier every 5 months. Most recently, Data Engineer Cert Prep was updated on October 18, 2026 and Plant Identifier on October 24, 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.*