Pocket Palace vs Lociform
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pocket Palace
Master your memory with the ancient Method of Loci. Build virtual memory palaces from real places, plant loci, and use spaced repetition for recall. Includes guided breathing exercises and a progression system to track your memory mastery.
- Create memory palaces from real locations
- Plant loci for memory storage
- Spaced repetition review schedule
- Guided breathing exercises for consolidation
- Renown progression system
- Method of Loci wiki guide
- PAO and Major/Peg system (Premium)
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The ancient art of memory, rebuilt for your pocket. The Method of Loci — used by Cicero, Sherlock Holmes, and every World Memory Champion — works by placing vivid mental images inside familiar locations you can walk through in your mind. Pocket Palace is the only app built around this technique from the ground up. BUILD YOUR PALACES Create memory palaces from real places you know — your childhood home, a school, your daily commute. Add rooms as stops on your mental walk. Plant loci — the exact spots where memory images live. Every palace you build becomes a permanent storage location your brain never forgets. SPACED REPETITION TRACKER Memory doesn't work without review. Pocket Palace's built-in Tracker runs a scientifically-grounded spaced repetition schedule: review on Day 1, then +3 days, +7 days, +30 days, +90 days, and +270 days. Self-report each review honestly. Miss a date and the sequence resets — that accountability is the whole system. BREATHING BREAK Memory consolidates best during rest. The built-in Breathing Break guides you through the 4-7-8 technique — a 60-second session between study sessions. Complete a session to permanently unlock 5 additional palace slots. One session every 48 hours. EARN YOUR RENOWN Every review you complete earns you a stage. Progress from Initiate to Scholar to Architect to Mnemonist to Grand Master. Your Renown reflects genuine, consistent practice — not just how many palaces you've created. THE METHOD WIKI New to memory palaces? The Method tab is a complete guide: how to choose a palace, how to place loci, how to create vivid memory images, and how to use spaced repetition effectively. Everything you need to go from beginner to serious practitioner. PREMIUM: PAO & PEG SYSTEM Serious memory athletes use the Person-Action-Object (PAO) system to encode numbers. Assign a memorable Person, vivid Action, and distinctive Object to every number 00 to 99. Chain them into scenes. Place the scenes in your palace. A 10-digit number becomes a 3-scene story you'll never forget. The Major/Peg System reference teaches you how to convert numbers into consonant sounds and build words — the foundation every great PAO list is built on. WHAT'S FREE 5 memory palaces, unlimited rooms and loci Spaced repetition Tracker (3 palace slots) Complete Method wiki Renown progression system Breathing Break with palace slot rewards CSV data export 10 practice sessions per day POCKET PALACE PREMIUM Three ways to unlock everything: $0.99/month — try it with no commitment, cancel anytime $5.99/year — best value, save 50% vs monthly $14.99 one time — pay once, own forever Premium includes: Unlimited palaces and Tracker slots PAO List — build your global 00–99 Person, Action, Object system Major/Peg System reference and multi-digit encoding guide Full Metrics History with review charts Instant Breathing Break access from the home screen Existing $2.99 purchasers are automatically recognized as lifetime members. Nothing to do — your access is preserved. NOW IN ESPAÑOL Pocket Palace is fully available in Spanish. Switch languages anytime in Settings — every screen, button, and feature translated. YOUR DATA Everything you create stays on your device. No account required. No data ever leaves your phone. Pocket Palace has no servers and collects no personal information. Start with one room. Five solid loci. One vivid image per locus. Walk it three times. Come back tomorrow. That's the whole system. It's been working for 2,500 years. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Lociform
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A memory palace is the oldest study technique there is. Lociform makes it practical. Type what you need to remember. Lociform binds each item to a spot in a place you already know, with a vivid image that actually interacts with that spot. Then it walks you through the route out loud and brings each item back on a spaced-repetition schedule. WHY PUT THINGS IN PLACES Your memory for places is far better than your memory for lists, so you smuggle the list into a place. Roman orators used this to deliver speeches without notes. When Eleanor Maguire's team scanned ten of the highest-ranking competitors at the World Memory Championships in 2003, nine of the ten were using the method of loci, and they were not smarter than the controls and their brains were not structurally different. FREE, WITH TWO PALACES - A worked sample palace, one tap from first launch - A three-minute before-and-after test, so you see your own two scores - Starter decks: the 12 cranial nerves, the 8 carpal bones, the Krebs cycle, the first 12 letters of the NATO alphabet - Memory Walks read aloud while you look at each locus - Spaced repetition built on FSRS-6, showing the real interval on every button - Build a palace from your own photo, rendered with real depth - Full VoiceOver support, and a designed flat mode for Reduce Motion VERIFIED, NOT GUESSED For factual material Lociform uses a human-written hook library, each entry carrying the etymology that justifies it. Scaphoid is a boat because scaphe is Greek for boat. For the starter decks and any term in the library, on-device Apple Intelligence only phrases a hook it has been handed. For your own items with no library entry it may suggest an image, labelled AI suggestion. Every scene is labelled so you can see where it came from. PRIVATE BY CONSTRUCTION No account. No servers. No analytics. No third-party SDKs of any kind. Lociform makes no network requests at all. The depth model and the language model both run on your iPhone, so your palaces, your photos and everything you memorise stay on the device. ONE OPTIONAL UNLOCK Every feature is free. If you want more than two palaces, Unlimited Palaces is a single purchase that never renews and never expires. No feature is locked behind it, there are no ads, and if you ever lose access every palace you have built stays readable and walkable. HONEST ABOUT THE LIMITS The method of loci is good at ordered lists of discrete things. It will not give you understanding, and two items per locus is the sensible limit. Lociform says so inside the app, and sets out what the research shows alongside where that research is weak.
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Verdict
The clearest difference is update cadence: Pocket Palace at every 3 weeks against Lociform's every 2 months. Pocket Palace also leads on iOS requirement (17.6 vs 26.0). On price, ads, 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. Pocket Palace sells 4 in-app purchases, starting at $0.99 per month and Lociform sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Pocket Palace ships an update every 3 weeks, Lociform every 2 months. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Pocket Palace | Lociform |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Glass Key Holdings LLC | JOSHUA JOHN |
In-app purchases
Pocket Palace
- Pocket Palace Monthly$0.991 Month
- Pocket Palace Annual$5.991 Year
- Pocket Palace Premium$2.99
- Pocket Palace Premium — Lifetime$14.99
Lociform
- Unlimited Palaces$9.99









