# Architect Scenario Prep — SAA-C03 Architecture Practice

> SAA-C03 Architecture Practice (iPhone/iPad app by Shunya Iwasaki.)

- Source: https://appshunter.io/ios/app/architect-scenario-prep/id6793653944 (this page in markdown: same URL + `.md`)
- Developer: [Shunya Iwasaki](https://appshunter.io/developer/1796095304)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English
- Released: 2026-08-04
- Data updated: 2026-08-30
- User reviews in markdown: https://appshunter.io/ios/app/architect-scenario-prep/id6793653944/reviews.md

## What is Architect Scenario Prep?

Most SAA-C03 study apps test whether you memorized a service name. This one tests whether you can actually design the right architecture for a real business requirement — and explains exactly why the best answer beats every alternative.

Architect Scenario Prep is a premium, no-subscription study app built for the AWS Certified Solutions Architect – Associate (SAA-C03) exam. Instead of trivia questions, you work through realistic scenarios and weigh security, reliability, performance, and cost — the same trade-offs the exam tests, and the same judgment real Solutions Architects use on the job.

WHY THIS IS DIFFERENT

• Every question explains all four pillars, not just the correct answer. See why each wrong choice fails: works but doesn't meet the requirement, costs more than necessary, or breaks under load.
• Architecture Decision Trainer: read a requirement, choose the best design, and see the full reasoning — the best architecture, every alternative's weakness, security/reliability/performance/cost/operational impact, the trade-off, and the common trap.
• AWS Service Comparator: stop confusing similar services. Compare S3 vs. EBS vs. EFS, RDS vs. Aurora vs. DynamoDB, SQS vs. SNS vs. EventBridge, and more — by real use case, not a feature table.
• Architecture Diagram Lab: read real architecture diagrams and spot the single point of failure, the insecure path, or the unnecessary cost.
• Failure & Resilience Lab: see what actually happens when an Availability Zone fails, a primary database goes down, or a NAT Gateway becomes unavailable — and what to do about it.
• Full-length and mini Mock Exams with accurate timing, flag-for-review, and a full post-exam breakdown by domain, task, and architecture pattern.
• Multiple-response practice, a Readiness Score built from your judgment on unseen scenarios (not how many times you've repeated a question), and a Final 24-Hour Cram.

BUILT FOR HOW YOU ACTUALLY STUDY

Everything works fully offline. No account, no login, no ads, and no subscription — buy once and it's yours. Your study history stays on your device.

This app is an independent study tool and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc. It contains no real or leaked exam questions and does not connect to or create resources in an AWS account. Readiness scores are study indicators, not a guarantee of exam results.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://common-legume-c99.notion.site/3a5fb55d256781c68723e89657f1d0b6

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Unlock | $39.99 | one-time |



## Version history (last 2 releases)

### 1.1.0 — 2026-08-05

This update adds a Daily Study Reminder: turn it on in Settings to get a gentle nudge at whatever time works best for you.

We also re-checked scenario explanations against current AWS service behavior and refreshed a number of them for accuracy, including areas AWS has recently changed (EBS volume performance options, DynamoDB capacity behavior, RDS Multi-AZ options, and more).

Thank you for studying with Architect Scenario Prep.

### 1.0.0 — 2026-08-04

No release notes.

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All apps by Shunya Iwasaki: https://appshunter.io/developer/1796095304

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*