Comparison

Professional English vs Systems Trainer

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

Head to head
About

Professional English

Features
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What sets Termify apart? Most language apps recycle generic word lists. Termify delivers only the mission-critical terms and procedures used by professionals in aviation, maritime operations, logistics, finance, cybersecurity and IT/DevOps. Every entry is sourced from official manuals (ICAO, IMO, Incoterms 2020, ISO 27001, ITIL, NIST) and paired with native pronunciation, IPA, real‐world dialogs and context notes in 15 interface languages — so international crews master the same vocabulary, faster. Industry Modules AVIATION • Pilot & ATC phraseology — ICAO Doc 9432, FAA PCG • Airport, aircraft-system and emergency terminology MARITIME • IMO SMCP commands, navigation and safety vocabulary LOGISTICS • Incoterms 2020, supply-chain KPIs, warehousing phrases FINANCE • Trading, corporate banking and fintech expressions CYBERSECURITY • Threat intelligence, risk management, SOC workflows IT / DEVOPS • Cloud architecture, CI/CD and incident-response language 15-Language Interface English (UK/US), Türkçe, Deutsch, Français, Español, Italiano, Português-BR, Português-EU, Русский, العربية, हिन्दी, 日本語, 한국어, 中文 (简体/繁體), Bahasa Indonesia. Learn in English, review explanations in your own language. Fast-Track Features • Adaptive spaced repetition & IPA pronunciation drills • Native dialogs: controller / pilot, captain / crew, engineer / ops • Career quizzes & shareable PDF certificates • Offline mode, dark UI, Apple Sign-In, iCloud sync Who trusts Termify? Airlines, shipping lines, freight forwarders, banks, SOC teams and leading tech boot-camps. Join more than 50 000 professionals accelerating their careers. Pricing Start free with 60 core terms per industry. Upgrade to Pro for unlimited access, weekly term drops and certificate export. Subscriptions auto-renew and can be managed anytime in Settings. Support & Privacy Knowledge base, live chat and privacy documents: https://markossda.github.io/info-support/

About

Systems Trainer

Features
Read full description

Systems Trainer – Challenger 3500 Systems Trainer Systems Trainer is the dedicated study companion for pilots flying or transitioning to the Bombardier Challenger 3500. Designed to help you build, maintain, and sharpen your aircraft systems knowledge, whether you're preparing for a recurrent check, an oral exam, or simply want to stay sharp between flights. COMPREHENSIVE SYSTEMS COVERAGE: Study all Challenger 3500 aircraft systems in one place: • Air Conditioning & Pressurization • Automatic Flight Control & Autothrottle • Auxiliary Power Unit • Communications • Electrical • Fire Protection • Flight Controls & Flight Instruments • Fuel & Hydraulics • Ice & Rain Protection • Landing Gear & Lighting • Limitations • Navigation • Oxygen & Emergency Equipment • Powerplant • Aural & Visual Alerts THREE QUIZ MODES: Challenge yourself the way that suits you best. Multiple Choice tests your recall against plausible alternatives. Flashcard mode lets you self-assess at your own pace. True/False sharpens your instinct for correct procedures and limitations. Mix and match modes or focus on a single system, the choice is yours. IMMEDIATE ACTION ITEMS: Train the procedures that matter most under pressure. The dedicated Immediate Action Items section lets you study and drill all emergency memory items with timed drills, step-by-step review, and a strict mastery standard: three consecutive correct answers within the target time. Because in a real emergency, there is no time to think. SMART PROGRESS TRACKING: Every question you answer contributes to your progress. Track mastery per system, monitor your overall accuracy, follow your daily study streaks, and earn points as you grow your knowledge. The Statistics view gives you a clear picture of where you stand and where to focus next. ACHIEVEMENTS: Stay motivated with a full achievement system spanning four categories. From your first question to mastering all systems and all Immediate Action Items, milestones reward consistent effort and depth of knowledge. BOOKMARKS: Flag questions you want to revisit. Build your own personal review list of tricky limitations, unfamiliar procedures, or topics you want to reinforce before your next flight. BUILT FOR PILOTS: Systems Trainer is built with technical accuracy as the top priority. All content has been independently compiled for study purposes and reflects publicly available aircraft systems knowledge. The app is designed as a study aid to complement your official training, not to replace it. Always refer to current approved documentation for operational use. Study smarter. Stay current. Know your aircraft. Systems Trainer is an independent study aid and is not affiliated with, endorsed by, or approved by Bombardier or any regulatory authority. All content is intended for study purposes only.

Screenshots

Professional English4 screens
Systems Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Systems Trainer at none against Professional English's 5. Professional English's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. Professional English sells 5 in-app purchases, starting at $5.99 per month. Systems Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Professional English ships an update every 2 days, Systems Trainer every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 4 level
Professional English versus Systems Trainer: the parameters behind the verdict, then further details
ParameterProfessional EnglishSystems Trainer
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size74 MB1000 MB
Age rating4+4+
DeveloperEmre BIRINCIPatrick Heinrich

In-app purchases

5 purchases

Professional English

Subscriptions5
  • Premium monthly$5.991 Month
  • Pro Yearly$9.991 Month
  • Pro Yearly Special Discount$24.991 Year
Show 2 more
  • Premium Yearly$29.991 Year
  • Pro Yearly$49.991 Year
None

Systems Trainer

No in-app purchases

Questions

Is Professional English free?
Professional English is free to download, with in-app purchases available.
Is Systems Trainer free?
Systems Trainer is free to download, with no in-app purchases.
Do Professional English or Systems Trainer have ads?
Neither Professional English nor Systems Trainer shows ads.
Which is updated more often, Professional English or Systems Trainer?
Professional English ships an update every 2 days, and Systems Trainer every 2 weeks. Most recently, Professional English was updated on October 30, 2026 and Systems Trainer on November 5, 2026.

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