# Polish by Nemo vs PDE Pro Database Engineer

The clearest difference is in-app purchases: PDE Pro Database Engineer at none against Polish by Nemo's 1. Polish by Nemo's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Polish by Nemo sells 1 one-off in-app purchase. PDE Pro Database Engineer asks for nothing beyond the download.

Polish by Nemo ships an update every 6 weeks, PDE Pro Database Engineer every 3 months. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Polish by Nemo | PDE Pro Database Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2K ratings)](https://appshunter.io/ios/app/polish-by-nemo/id635603130/reviews)** | — |
| Number of ratings | **2K** | — |
| Positive reviews | 91.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 30 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nemo Apps LLC](https://appshunter.io/developer/428814324) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### Polish by Nemo

[App page](https://appshunter.io/ios/app/polish-by-nemo/id635603130)

Learn Polish with this app that uses native speaker audio and speech recognition to help you master pronunciation. It focuses on essential vocabulary and phrases for everyday conversations, allowing you to learn at your own pace without formal lessons.

**Highlights:** Native speaker audio, Speech recognition for pronunciation practice, Essential vocabulary and phrases, Offline access, Customizable learning, Review mode for memory retention

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nemo Polish Foundation pack | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Effective learning method
- 💯 Excellent pronunciation
- 🎓 Helpful for beginners
- 🔍 Customizable settings

**What reviewers complain about**

- 🐢 Slow pace for some users
- 🔁 Repetitive at times
- 🗣️ English pronunciation not always needed
- 💾 Data not saved across devices
- 💰 Expensive full version

**Reported bugs**

- App crashes on some devices
- Logging out causes issues

**Requested features**

- Add more vocabulary
- Implement speech recognition
- Allow user-added words
- Improve user interface
- Provide more free content


### PDE Pro Database Engineer

[App page](https://appshunter.io/ios/app/pde-pro-database-engineer/id6756967890)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polish by Nemo free?

Polish by Nemo is free to download, with in-app purchases available.

### Is PDE Pro Database Engineer free?

PDE Pro Database Engineer is free to download, with no in-app purchases.

### Do Polish by Nemo or PDE Pro Database Engineer have ads?

Neither Polish by Nemo nor PDE Pro Database Engineer shows ads.

### Which is updated more often, Polish by Nemo or PDE Pro Database Engineer?

Polish by Nemo ships an update every 6 weeks, and PDE Pro Database Engineer every 3 months. Most recently, Polish by Nemo was updated on September 25, 2026 and PDE Pro Database Engineer on September 28, 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.*