Brainscape vs HSI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brainscape
This app uses AI and spaced repetition to help you learn faster and remember longer. Create your own multimedia flashcards or access a vast marketplace of expert-curated content for various subjects and exams. It's designed for serious learners who want to optimize their study time.
- AI-powered flashcard maker
- Spaced repetition algorithm
- Expert-curated flashcard marketplace
- Create multimedia flashcards
- Collaborative content creation
- Active recall and self-assessment
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Learn faster and remember longer with Brainscape, the AI flashcard app that combines scientifically proven spaced repetition and active recall. Create flashcards instantly from notes, PDFs, images, and text, or study millions of expert-created flashcards for exams, languages, certifications, and more. Whether you're switching from Anki or another flashcard app, Brainscape helps you study more efficiently. Brainscape’s intelligent study system is designed around proven cognitive science principles that help you learn faster and remember longer. By combining active recall, metacognition, and spaced repetition, Brainscape helps serious learners spend less time studying and retain more of what they learn. How Brainscape works. Study any subject using smart flashcards designed to maximize retention: - Actively recall answers instead of passively rereading notes - Rate your confidence from 1–5 after each card - Let Brainscape automatically optimize review timing using spaced repetition - Focus more time on difficult concepts and less on material you've already mastered This unique combination of active recall, self-assessment (metacognition), and spaced repetition is designed to help you learn more efficiently. Where do all of Brainscape’s awesome flashcards come from? Three places: 1. Exper-created flashcards: Study professionally designed collections covering: - Foreign languages - MBE (Bar Exam) - NCLEX - MCAT - AP courses - Series 7 - GRE - And many more 2. Community-created flashcards: Search millions of flashcards created by students, teachers, professionals, and organizations around the world. 3. Create your own flashcards: Instantly create multimedia flashcards from: - Notes - PDFs - Images - Documents - Text input Add images, audio, and collaborate with classmates or colleagues. Why learners all over the world use Brainscape - AI-powered flashcard creation - Scientifically designed spaced repetition - Active recall learning techniques - Progress tracking and study insights - Millions of existing flashcards ready to study - Available across web and mobile devices How much does it cost? Creating and sharing great text flashcards is FREE. (Woohoo! And sorry, we do have to charge for image creation for security reasons.) And for unlimited access to ALL of Brainscape's user-generated and premium, expert-curated content, as well as optional features, like bookmarks and card reversibility--or to me your content private, you can upgrade to Pro for $19.99 (monthly), $59.99 (every 6 months), or $95.99 (annually). Alternatively, you can unlock a LIFETIME of learning with Brainscape for a one-time cost of only $199.99 American dolla billz. The fine print: The 3 recurring subscriptions (monthly, semiannual, and annual) will renew automatically within 24 hours before the end of the current period, unless auto-renew is turned off at least 24 hours before the end of the period. You can cancel auto-renewal any time by going to Account Settings, and the cancellation will apply after the active subscription period is complete. Go ahead and learn more about our Terms and Privacy Policy at brainscape.com/terms. What’s on the horizon? It’s our vision to empower everyone, everywhere to rise to the challenge of personalized forever-learning. And for this reason, we love hearing from our user community: it’s through your feedback that we can continue to innovate our platform to be more convenient, efficient, and even fun and social to use!
HSI
Practice instrument approaches with realistic HSI displays and customizable navigation modes. Import your own approach plates to fly procedures as published. This app is designed for student pilots, instrument-rated pilots, and flight instructors.
- Import custom PDF approach plates
- Realistic HSI instrument display
- Multiple navigation modes (VOR, TACAN, LOC, NDB)
- Fix to Fix (Point to Point) training
- Adjustable speed control for practice
- Privacy-focused with zero data collection
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HSI - Instrument Approach Trainer is the only app that lets you import real PDF approach plates and fly approaches right on top of them. Whether you're a student pilot preparing for your instrument rating, a CFI teaching procedures, or a current pilot staying sharp — HSI puts realistic approach training in your pocket. Initially developed for Australian advanced flying training by an Air Force Qualified Flying Instructor - HSI is built by a pilot for pilots. WHAT MAKES HSI DIFFERENT Import Your Own Approach Plates Load any PDF approach plate and practice the procedure as published. No other app offers this. Fly the approaches you'll actually fly in the real aircraft. Realistic HSI Instrument - A beautifully rendered HSI with course selector, CDI, and heading bug. Designed after modern glass and PC-21 style displays. Multiple Nav Modes - Practice VOR, TACAN, LOC, and NDB approaches. Set up any scenario with customizable navaid positions and approach tracks. Holding Patterns - Practice standard and non-standard holding patterns with automatic entry selection. Direct, teardrop, and parallel entries with live guidance overlay. DME and timed holds included and fully customizable. DME Arcs - Find the rhythm with your own join radial, exit radial, DME and direction, or try Random Arc. Map and HSI guidance coach DME trend, pointer position, joins and exits. Fly Challenge launches at 200 kt with guidance hidden, then review your flown track, containment and correction economy. Arc results are stored on your device. Wind - Set wind direction and speed to practice real-world conditions. Essential for instrument rating prep. Global Leaderboard - Compete with pilots worldwide in Fix-to-Fix challenges. See how you rank. Built-In Fix to Fix (Point to Point) Training - HSI and map overlays that help you visualise this skill. Speed Control - Run approaches at 1x, 2x, 5x and 10x speed. Slow it down to learn, speed it up to drill. FREE TO TRY Download HSI for free and explore every feature. Love it? Unlock HSI Pro (one-time purchase) for the full experience: HSI Pro includes: • PDF approach plate import • No timeout for Pro features (speed ramp, interactive instruments, map follow), Fix-to-Fix Challenge Leaderboard and more. WHO IT'S FOR Student Pilots — Build your conceptual knowledge of HSI instruments and approach procedures before expensive simulator or flight hours. Instrument-Rated Pilots — Stay current on procedures. Practice approaches you'll fly on your next trip. Import the actual plates. Flight Instructors (CFIs) — Demonstrate HSI concepts to students on an iPad. Import the approach plate you're briefing and walk through it step by step. Military Pilots — Originally developed for Australian military advanced flying training. PC-21 style HSI graphics feel right at home. WHAT PILOTS ARE SAYING — 4.5 stars from pilots who use it "This app is probably the only reason HSI needles made any sense to me. It’s like a sandbox for learning instruments. Highly recommend!" "I still use it to keep my skills up after a break from IF flight/pre IRA" "Great tool to brush up on IFR point to point concept and hold entries" "If you don't fly much IF this HSI tool will help you out" "Great for your own practice or explaining to a friend how to do point to points and orientate yourself in IF" SAVE MONEY A single flight hour costs hundreds of dollars. HSI Pro costs a fraction of that — once. Practice unlimited approaches and walk into your next checkride, sim session, or flight with confidence. PRIVACY No sign-in is required. HSI uses daily usage analytics and an optional public leaderboard. See hsiapp.com.au/privacy/ for details. Website: https://hsiapp.com.au/ Support: help@hsiapp.com.au General enquiries: hello@hsiapp.com.au
Screenshots
Verdict
The clearest difference is ratings volume: Brainscape at 22K against HSI's 6. Brainscape also leads on update cadence (every 3 weeks vs every 2 months) and chart position (#186 vs unranked). On price, rating, review sentiment and ads 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. Brainscape sells 4 in-app purchases, starting at $19.99 per month and HSI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Brainscape against 4.7 for HSI. That said, the two scores are not equally well evidenced: Brainscape has 22K ratings behind it against 6, so its average is the more settled of the two. Written reviews split almost evenly too, at 83% and 82% positive.
Brainscape ships an update every 3 weeks, HSI every 2 months. The most recent releases landed on November 3, 2026 and November 1, 2026 respectively.
| Parameter | Brainscape | HSI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (22K ratings) — better | 4.7 (6 ratings) |
| Positive reviews | 82.7% of reviews — better | 81.8% of reviews |
| Number of ratings | 22K — better | 6 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #186 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 42 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Brainscape | NATHAN STANKEVICIUS |
Customer experience
Brainscape
HSI
Bugs and requests
Brainscape
Reported bugs
4 issues- App crashes when switching between cards
- Syncing issues causing data loss
- Difficulty importing and organizing custom cards
- Inconsistent performance on different devices
Requested features
5 requests- Allow more customization of cards (e.g., adding images, audio)
- Improve search and browsing functionality
- Provide more detailed progress tracking and statistics
- Offer family/group subscription plans
- Add support for more languages
HSI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brainscape
- Brainscape Pro$19.991 Month
- Brainscape Pro$59.996 Months
- Brainscape Pro$95.991 Year
- Brainscape Pro Lifetime$199.99
HSI
- Pro Upgrade$9.99









