System Design Refresher vs SysMLv2 Model User Cert Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
System Design Refresher
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System Design Refresher is a free study companion for software engineers preparing for system design interviews. WHAT'S INSIDE • 30+ system design articles covering distributed systems, databases, caching, and more • Engineering blogs from top tech companies (Google, Meta, Stripe, Airbnb, and more) aggregated in one place • AI-powered flashcards with spaced repetition • Ask AI to summarize or explain any article in plain language • Favorites, reading progress tracking, and custom RSS feeds FEATURES • Works offline — articles download for reading without internet • Dark mode, font customization, and text size controls • Face ID / Touch ID lock for privacy • Sign in with Google or Apple, or use as a guest with no account required
SysMLv2 Model User Cert Prep
Prepare for the OMG SysML v2 Model User certification exam with a comprehensive study aid. It offers over 500 practice questions, including diagram-based ones, with detailed explanations and offline access. Track your progress and take timed mock exams to ensure readiness.
- 584 validated practice questions
- 70 diagram-based questions
- Answer explanations with official links
- Practice by topic or full mock exam
- Accuracy tracking and performance streaks
- Offline functionality
- Dark mode support
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Practice for the OMG SysML v2 Model User (MU) certification exam with 584 validated questions aligned to the official OMG blueprint. Cert Prep MU SysMLv2 gives you everything you need to master the exam: • 584 validated practice questions covering all MU exam topics, including 70 diagram-based questions that test reading SysML v2 notation • Answer explanations with links to the official OMG specification • Practice by topic, or take a full-length 90-question timed mock exam • Accuracy tracking and performance streaks • Works offline — all progress saved on your device • Dark mode support for comfortable studying This app is just an independent study aid, not affiliated with or endorsed by the Object Management Group (OMG®). Use it alongside the official OMG training materials for best results. SysML® is a registered trademark of the Object Management Group.
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Verdict
The clearest difference is iOS requirement: SysMLv2 Model User Cert Prep at 17.0 against System Design Refresher's 26.2. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
System Design Refresher ships an update monthly, SysMLv2 Model User Cert Prep every 3 weeks. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.
| Parameter | System Design Refresher | SysMLv2 Model User Cert Prep |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Saurabh Sharma | JONAS VALTER RADSTROM |
In-app purchases
System Design Refresher
No in-app purchases
SysMLv2 Model User Cert Prep
No in-app purchases
Questions
Is System Design Refresher free?
Is SysMLv2 Model User Cert Prep free?
Do System Design Refresher or SysMLv2 Model User Cert Prep have ads?
Which is updated more often, System Design Refresher or SysMLv2 Model User Cert Prep?
Other comparisons
