Comparison

Aikido vs PDE Pro Database Engineer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Aikido

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
Read full description

A focused Aikido video library for learning the shape, timing, and flow of each movement. Explore 43 offline lessons organized into five collections: balance breaking, awase, ma-ai and tai sabaki, kokyu-ryoku, and Aikido basics. Clear thumbnails, structured sections, favorites, progress, and playback controls make it easy to return to the detail you want to practice. The first video in every collection is free. Browse all five collections, then continue with either a one-time Full Access unlock or an annual subscription. Eligible annual subscribers can begin with a three-day free trial. Purchases can be restored on your other supported devices. Practice safely with a qualified instructor and within your own ability. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDE Pro Database Engineer

Features
Read full description

PASS YOUR PROFESSIONAL CLOUD DATABASE ENGINEER EXAM 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Certified Google Cloud database engineers earn up to $203K annually (Skillsoft 2024). Professional Cloud Database Engineer validates expertise in designing, managing, and troubleshooting scalable database solutions. WHAT YOU'LL MASTER: Database capacity planning and performance tuning High availability with multi-regional and zonal strategies Database connectivity with networking and encryption Managed vs unmanaged services comparison SQL and NoSQL requirements for structured and unstructured data IAM and access management for database security Monitoring with query optimization and resource contention Backup and recovery with RTO, RPO, and PITR Cost optimization and scaling strategies Database migration with zero-downtime and fallback plans Replication strategies and read replicas Generative AI and LLM database use cases STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into database engineering expertise. Download now. Pass your exam. Master Google Cloud databases.

Screenshots

Aikido4 screens
PDE Pro Database Engineer3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Aikido versus PDE Pro Database Engineer: the parameters behind the verdict, then further details
ParameterAikidoPDE Pro Database Engineer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 71 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size1.8 GB30 MB
Age rating4+4+
DeveloperAppsolute LLCDavy Raitt

In-app purchases

6 purchases

Aikido

Subscriptions1
  • Annual Full Access3 Days trial$5.991 Year
One-time5
  • Kokyu Ryoku$0.99
  • Basic Movements$0.99
  • Awase Principle$3.99
Show 2 more
  • Maai and Tai Sabaki$4.99
  • Full Access — Lifetime$7.99
None

PDE Pro Database Engineer

No in-app purchases

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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