# Aikido vs PDE Pro Database Engineer

The clearest difference is in-app purchases: PDE Pro Database Engineer at none against Aikido's 6. PDE Pro Database Engineer also leads on update cadence (every 3 months vs every 71 months) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Aikido sells 6 in-app purchases, starting at $5.99 per year. PDE Pro Database Engineer asks for nothing beyond the download.

Aikido ships an update every 71 months, PDE Pro Database Engineer every 3 months. The most recent releases landed on November 13, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Aikido | PDE Pro Database Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aikido-interactive-lessons/id957141863/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 71 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 1.8 GB | 30 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appsolute LLC](https://appshunter.io/developer/604712076) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### Aikido

[App page](https://appshunter.io/ios/app/aikido-interactive-lessons/id957141863)

Learn Aikido with 43 guided video lessons covering balance breaking, movement flow, and foundational techniques. Organize your practice with structured sections, favorites, and progress tracking. Access content through a one-time unlock or an annual subscription.

**Highlights:** 43 guided video lessons, Offline access, Organized collections, Progress tracking, Favorites, Playback controls

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Full Access | $5.99 | per year |
| Kokyu Ryoku | $0.99 | one-time |
| Basic Movements | $0.99 | one-time |
| Awase Principle | $3.99 | one-time |
| Maai and Tai Sabaki | $4.99 | one-time |
| Full Access — Lifetime | $7.99 | one-time |


### 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 Aikido free?

Aikido 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 Aikido or PDE Pro Database Engineer have ads?

Neither Aikido nor PDE Pro Database Engineer shows ads.

### Which is updated more often, Aikido or PDE Pro Database Engineer?

Aikido ships an update every 71 months, and PDE Pro Database Engineer every 3 months. Most recently, Aikido was updated on November 13, 2026 and PDE Pro Database Engineer on November 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.*