Comparison

Skedd vs Power System Lab

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

Head to head
About

Skedd

Features
Read full description

Got an interview date? Skedd builds a 10-minute-a-day prep plan up to that day and uses AI to write every lesson for your exact role. Developer, data analyst, business analyst, product manager, marketing, HR, finance, sales… Pick your role or type your own; paste the job post or its link, add your resume, and Skedd does the rest. HOW IT WORKS • Tell Skedd your role, level, interview stage and date. • Get a day-by-day plan: which topic when, and when to review. • Every day: a short explanation, examples and the questions interviewers actually ask. • Answer and instantly see the right answer and why. Tap "I don't get it" for a simpler explanation. MADE FOR YOU • Add your resume and questions build on your own projects, with more time on the gaps. • Passed the HR screen? Update your stage and the plan is rebuilt for the technical round. • Want more? Go deeper in a topic or add a new topic that isn't in your plan. REVIEW BEFORE YOU FORGET Questions you miss come back right when you'd start forgetting them. In Practice, work through what's due, your weak topics or a mixed set any time. ATS-FRIENDLY RESUME Rewrites your resume for the role you're applying to and gives you a one-column PDF that applicant tracking systems read cleanly. Add a photo if you like. One-time purchase. HABIT Daily streak, days-left countdown and weekly tracking — walk in ready. WORKS OFFLINE Downloaded lessons stay on your phone; study on the train, on a plane, without a connection. PRIVACY No account needed. No ads. SKEDD PRO Your plan, its lessons and extra lessons come with Skedd Pro: weekly, monthly or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period; manage them in Settings > Apple ID > Subscriptions. Terms of Use: https://skedd.ollilabs.com/terms Privacy Policy: https://skedd.ollilabs.com/privacy

About

Power System Lab

This app offers a comprehensive learning experience for marine electrical systems through interactive simulations, practical tools, and engaging games. It allows users to explore virtual environments, perform diagnostics, and test their knowledge with various challenges. The app also includes useful calculation tools and customization options.

Highlights
  • Interactive marine electrical simulations
  • Virtual instruments and diagnostic tools
  • Four educational games
  • Electrical calculation tools
  • Customizable learning environment
  • Progress tracking and account sync
Read full description

Power System Lab brings marine electrical learning, hands-on simulations and practical tools to cadets, electro-technical officers and anyone studying shipboard electrical systems on iPhone and iPad. Explore your learning island: follow explanations and activities, try virtual instruments and track your route. Change circuit parameters on virtual benches and compare the results. Investigate your training ship. Inspect marked components, collect findings and choose diagnostic actions. Work through repair and verification stages, explore equipment and prepare the vessel for a voyage. Four games bring variety to your practice: • Knowledge Tower: drop containers from a crane, keep the stack balanced and collect short facts. Compare your best runs in weekly and all-time player standings. There are no cash prizes. • Name the equipment: 250 photographs covering 45 types of equipment, components and tools. Choose one of four answers, learn its purpose, zoom into the image and revisit mistakes. Progress syncs with your account. • Match-three: component combinations, electrical effects and short facts about electricity and marine systems. • Crosswords: marine and electrical terms, new ports and grid zoom. Russian and English puzzles keep separate saved letters and progress. Keep useful tools within reach: electrical calculations, 4–20 mA signal scaling, Pt100/Pt1000, resistor markings, Modbus register conversion and more. Search, save favorites and check formulas. Set up clocks for your ship, home and ports. English and Russian interface. Native layouts adapt to iPad rotation. Choose a character and uniform, adjust effects and animations, or study with gentle surf and distant gulls. There are no ads. The tower leaderboard lets you hide another player or report their name. All users need a subscription for the main features after sign-in. If Apple confirms introductory-offer eligibility, either plan starts with 3 free days. You must confirm the subscription through Apple immediately; registration alone does not start a trial. Only one introductory offer is available per Apple Account for the subscription group. Switching plans or creating another Power System Lab account does not provide another trial. If ineligible, the paid period starts immediately. After the trial, the subscription automatically renews at US$4.99 per month or US$39.99 per year in the US storefront unless canceled in time. Both plans provide the same access; the year is charged upfront. Apple shows your localized price and terms before confirmation. To avoid the first charge, cancel through Apple at least 24 hours before the trial ends. Remaining free days after cancellation are not guaranteed. Internet is needed for sign-in, subscription verification, new learning actions and sync. In iOS, calculations and clocks run locally after access is verified; their settings and favorites sync when connected. The subscription also covers the website for the same account. Purchases are made only through Apple inside iOS; there is no separate web payment. Restore Purchases, subscription management, support, legal documents and account deletion remain available without a purchase. Restore with the original Apple Account and Power System Lab account. Deleting the app or account does not cancel an Apple subscription. Apple handles refunds; mandatory consumer rights are preserved. For independent study. The app does not replace formal training, equipment documentation or vessel procedures and does not provide professional certification. Support: support@powersystemlab.net Privacy: https://powersystemlab.net/legal/privacy?lang=en Terms: https://powersystemlab.net/legal/terms?lang=en Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Skedd4 screens
Power System Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: Power System Lab at none against Skedd's 6. On price, update cadence, 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. Skedd sells 6 in-app purchases, starting at $2.99 per 7 days. Power System Lab asks for nothing beyond the download.

UpkeepUpdate frequency

Skedd ships an update every 4 days, Power System Lab every 3 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Skedd versus Power System Lab: the parameters behind the verdict, then further details
ParameterSkeddPower System Lab
PriceFreeFree
Rating—4.0 (3 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Subscription
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better17.0
Further details — not scored
Size88 MB256 MB
Age rating4+12+
DeveloperBERNA ELMASSerhii Zai

In-app purchases

6 purchases

Skedd

Subscriptions4
  • Skedd Pro Haftalık3 Days trial$2.997 Days
  • Skedd Pro Haftalık$2.997 Days
  • Skedd Pro Aylık3 Days trial$4.991 Month
Show 1 more
  • Skedd Pro Aylık$4.991 Month
One-time2
  • ATS-friendly CV$0.99
  • Skedd Pro Ömür boyu$49.99
None

Power System Lab

No in-app purchases

Questions

Is Skedd free?
Skedd is free to download, with in-app purchases available.
Is Power System Lab free?
Power System Lab is free to download, with no in-app purchases.
Do Skedd or Power System Lab have ads?
Neither Skedd nor Power System Lab shows ads.
Which is updated more often, Skedd or Power System Lab?
Skedd ships an update every 4 days, and Power System Lab every 3 days. Most recently, Skedd was updated on November 6, 2026 and Power System Lab on October 31, 2026.

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