Memory Palace Builder vs Mental Math Interview Trainer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Memory Palace Builder
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Create a memory palace with multiple locations. Add the individual stations you have at a location. Compress the images in the app to save storage. When finished, you can scroll through and search all location entries and create and save associations to the images. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Mental Math Interview Trainer
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Mental Math helps you build fast, reliable mental calculation skills through short, focused practice sessions. Whether you are preparing for consulting interviews (McKinsey, BCG, Bain), finance or tech case interviews, or any role that tests quantitative reasoning, this app gives you a simple way to drill the exact skills you need: quick multiplication, percentages, division, and growth calculations. Practice in three modes: โข Speed: solve as many problems as you can before the clock runs out โข Accuracy: answer a fixed set of questions and aim for precision โข Custom: pick specific categories and set your own time limit Adjust difficulty from Easy to Hard and fine-tune the tolerance margin so drills match your current level. Your results are saved locally on your device so you can track progress across sessions and spot improvement over time. Features: โข Short daily mental math drills designed for interview prep โข Speed, Accuracy, and Custom practice modes โข Multiplication, percentage, division, and growth exercises โข Adjustable difficulty and tolerance controls โข Session summaries and long-term performance stats โข Lightweight, distraction-free design โข Available in English, French, and Spanish Perfect for consulting interview prep, case interview math, finance interviews, product management interviews, or anyone looking to sharpen their everyday arithmetic.
Screenshots
Verdict
The clearest difference is in-app purchases: Mental Math Interview Trainer at none against Memory Palace Builder's 5. Mental Math Interview Trainer also leads on update cadence (every 2 days vs every 3 months). Memory Palace Builder's advantage is iOS requirement (16.0 vs 26.4). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Memory Palace Builder sells 5 in-app purchases, starting at $1.39 per month. Mental Math Interview Trainer asks for nothing beyond the download.
Memory Palace Builder ships an update every 3 months, Mental Math Interview Trainer every 2 days. The most recent releases landed on October 11, 2026 and October 19, 2026 respectively.
| Parameter | Memory Palace Builder | Mental Math Interview Trainer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 days โ better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 โ better | 26.4 |
| Further details โ not scored | ||
| Size | 120 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Marvin Perzi | Ludovic Lepic |
In-app purchases
Memory Palace Builder
- Premium โ 1 Month$1.391 Month
- Premium โ 1 Year$14.491 Year
- Just Coffee$0.99
- Pro Version & Coffee$4.99
- Pro Version!$28.49
Mental Math Interview Trainer
No in-app purchases
Questions
Is Memory Palace Builder free?
Is Mental Math Interview Trainer free?
Do Memory Palace Builder or Mental Math Interview Trainer have ads?
Which is updated more often, Memory Palace Builder or Mental Math Interview Trainer?
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