Pi Masters vs Memory Palace Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pi Masters
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Learn the digits of Pi and evaluate your progress up to 1 MILLION digits. Work toward beating Araki Haraguchi's unofficial record of 100,000 digits memorized! Absolutely no ads. No account, no user profiling. Just you and Pi.
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/
Screenshots
Verdict
The clearest difference is in-app purchases: Pi Masters at none against Memory Palace Builder's 5. Pi Masters also leads on ads (none vs shown). On price, update cadence, 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. Memory Palace Builder sells 5 in-app purchases, starting at $1.39 per month. Pi Masters asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 4, 2026 and September 25, 2026 respectively.
| Parameter | Pi Masters | Memory Palace Builder |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.5 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Dave Poirier | Marvin Perzi |
In-app purchases
Pi Masters
No in-app purchases
Memory Palace Builder
- Premium – 1 Month$1.391 Month
- Premium – 1 Year$14.491 Year
- Just Coffee$0.99
- Pro Version & Coffee$4.99
- Pro Version!$28.49
Questions
Is Pi Masters free?
Is Memory Palace Builder free?
Do Pi Masters or Memory Palace Builder have ads?
Which is updated more often, Pi Masters or Memory Palace Builder?
Other comparisons
