P vs LexUp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
P
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P-REx Zero Console: Parameterized Runtime Execution (Z3R0 Edition) I just wanted to run one function. RStudio didn’t open. My Wi-Fi disappeared. Cookies were required — tragically, not the snacking kind. So I made this. This is P-REx Zero, a lightweight demo version of the full P-REx app. It’s a stripped-down R console for your iPhone. No cloud. No account. No add-ins. Just R, running offline, like it’s 2004 and deep focus was still fashionable. Whether you’re simulating data from the couch, calculating probabilities at 35,000 feet, or panic-testing t.test() before a meeting, P-REx Zero shows up quietly and does the math. Like a stats TA who won’t judge your p-value or your life choices. What this version does: • Runs a focused set of core R functions • Good for testing, learning, and basic stats • Offline, because life happens • Remembers your variables, even if you don’t • No ads, no feeds, no “smart” tooltips Want more? The full version of P-REx unlocks 99+ functions, extended syntax support, and extra features. But this gets you started. The paid version of P-REx Console can be found here: https://apps.apple.com/ca/app/p-rex-console/id6743998835 I built it to run one line of code. Now I use it to avoid everything else.
LexUp
Master new English words with smart flashcards and engaging games. This app adapts to your learning pace, from beginner to advanced levels, using a spaced repetition system to ensure permanent memorization. Prepare for exams and track your vocabulary growth effectively.
- Smart flashcards with definitions and pronunciation
- Interactive mini-games for practice
- Spaced repetition system for long-term memory
- Supports all CEFR levels (A1-C2)
- Exam preparation for TOEFL, IELTS, YDS
- Personalized daily word lists
- Progress tracking
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Looking for a fast, fun, and effective way to learn English? LexUp combines smart flashcards and engaging games to help you memorize words permanently! Whether you are an absolute beginner (A1) or an advanced learner (C2), LexUp adapts to your pace and makes language learning addictive. Why Choose LexUp? Smart Flashcards: Learn new words easily with clear definitions, practical examples, and correct pronunciation. Interactive Mini-Games: Test your memory with multiple-choice quizzes and fill-in-the-blank challenges. Spaced Repetition System: Our smart algorithm ensures you review words right before you forget them, locking them into your long-term memory. All CEFR Levels (A1-C2): Start from the basics or jump straight into advanced academic terminology. Exam Prep (TOEFL, IELTS, YDS): Master the exact vocabulary you need to ace your language exams. Personalized Learning: The app tracks your progress and creates customized daily word lists just for you. No Wasted Time: Once you truly master a word, we stop repeating it so you can focus on new vocabulary. How Does It Work? Swipe & Learn: Review smart flashcards to discover new words. Play & Practice: Answer quick, game-based questions to solidify your knowledge. Track Success: Watch your vocabulary grow every single day! Say goodbye to boring textbooks. Build a powerful vocabulary, improve your speaking confidence, and learn English the smart way. LexUp Website: https://lexupapp.com/ Terms of Use: https://lexupapp.com/terms/ Apple Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lexupapp.com/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: P at none against LexUp's 1. P also leads on ads (none vs shown). LexUp's advantage is update cadence (every 3 days vs monthly). On price, 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
Both are free to download. LexUp sells 1 in-app purchase, starting at $2.99 per month. P asks for nothing beyond the download.
P ships an update monthly, LexUp every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | P | LexUp |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Ashish Srikanth | Olgun Aldemir |
In-app purchases
P
No in-app purchases
LexUp
- LexUp - Premium1 Month trial$2.991 Month









