Percent vs EU Nerd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Percent
Read full descriptionHide full description
Master the data interpretation skills needed for corporate aptitude tests. Percent-O provides infinite, realistic practice for numerical reasoning exams. Infinite Practice Procedurally generated exam sessions ensure you never see the same question twice. Memorization won't work; you must master the logic. Realistic Data Analyze complex tables including Revenue, Headcount, and Exchange Rates under strict time limits. Trap Training Learn to identify specific "distractor" answers designed to trick you, including: Denominator Errors: Using the wrong base year. Unit Errors: Missing the "thousands" multiplier. Data Sufficiency: Recognizing when an answer "Cannot be calculated." Professional Scoring Receive a Stanine Score (1–9) and a breakdown of your accuracy and speed, matching the grading standards used by employers.
EU Nerd
Read full descriptionHide full description
Preparing for an EU competition shouldn't cost a small fortune. EU Nerd is a dedicated practice tool for EPSO selection tests, built by candidates who successfully passed the EPSO selection process. We grew tired of preparation materials that didn't match the format of the actual tests and platforms that charged expensive monthly subscriptions. We built the tool we wished we had: realistic questions, instant explanations. Questions reviewed by a human, ensuring you get practice that reflects the actual exam. How do we know? Because we already passed them. Why EU Nerd • Five test types in one app: Complete coverage for Verbal Reasoning, Numerical Reasoning, Abstract Reasoning, EU Knowledge, and Digital Skills. • 1,400+ original questions: A growing bank of practice material designed to mirror the difficulty and format of EPSO tests. We will add more questions later. The questions will be periodically updated. • NO AI Slop: Don´t expect lame AI-generated ballast. Questions have been built by humans who have passed the official tests. • Realistic mock exams: Full, timed simulations for CAST and Generalist AD5 procedures. • Spaced repetition: The app remembers which questions you get wrong and reintroduces them to reinforce your weak spots. • Instant explanations: Detailed solutions are explained after each question to enable you to learn the patterns the cognitive-based tests (CBT) use. • Exam countdown: You can set your exam date to track your daily practice streak and readiness score. • Test vs Practice mode: In practice mode, you see the right answer and a clear explanation straight after each question. Switching to test mode enables you to simulate the real test under timed conditions. • Offline: practice on your daily commute, on the beach, or while on the plane. You do not need an internet connection. MEET COACH We added a personalized feature: the coach is your personal study plan. It reads your own answers, finds exactly where you are losing marks, and turns your weak spots into targeted practice. It tells you whether you would pass against the real EPSO pass marks, lays out what to do each day up to your exam, and keeps you on pace. Coach is an optional upgrade. Disclaimer: EU Nerd is an independent study aid. It is not affiliated with, endorsed by, or connected to the European Personnel Selection Office (EPSO) or any European Union institution. All questions are original content and do not reproduce official exam material.
Screenshots
Verdict
The clearest difference is ads: EU Nerd at none against Percent's shown. EU Nerd also leads on iOS requirement (15.1 vs 26.1). On price, in-app purchases 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
Both are free to download. Percent sells 1 one-off in-app purchase and EU Nerd sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Percent | EU Nerd |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.1 | 15.1 — better |
| Further details — not scored | ||
| Size | 7 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Marc Picco | Juraj Plaza |
In-app purchases
Percent
- Remove Ads$0.99
EU Nerd
- Upgrade Coach vstupná zľava$8.99
- EU Nerd - EPSO testy$11.99
- EU Nerd - Vstupná akcia$24.99
Show 2 moreShow fewer
- Coach Upgrade$24.99
- EU Nerd Tréner$39.99







