Comparison

Okinawa Map Puzzle vs Engram

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Okinawa Map Puzzle

Features
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An educational puzzle game produced by Digital Gene. Memorize the cities of Okinawa (Japan) through jigsaw puzzles in this educational game focused on enjoyment and good pacing. [Multiple stages] There are various modes available, including Beginner mode with the region names and boundaries, Advanced mode testing only region names, Expert mode testing only boundaries, and Master mode without hints. [Navigation Assist for Beginners!] Enjoy the game to the very end, even if you're a complete beginner by asking the Navigation for help. [Competitive Online Play] Enjoy replaying the game by competing for the best completion time with players worldwide and aiming for the highest rank. Replaying the game also earns you coins used to get pictures of Okinawa's landscape.

About

Engram

Features
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You study something, you know it, and a week later it's gone. Sound familiar? Forgetting isn't a willpower problem. Most of the time it comes down to two things: how you encode information, and when you review it. Engram is a flashcard app built around exactly those two things. โ–  Review right before you forget FSRS, a modern spaced repetition algorithm, predicts when each card is about to slip away and brings it back just in time. You don't re-read everything every day. Fewer reviews, longer-lasting memory. โ–  Practice how you remember Five encoding strategies from memory research, practiced on your actual cards: - Rephrase: put it in your own words - Self-reference: connect it to your own life - Teach: organize it as if explaining to someone - Story: link ideas into a narrative - Visualize: picture it in your head On-device AI comments on what you write. In Teach mode it becomes a short dialogue that helps you find the fuzzy spots in your understanding. โ–  Memory Palace Place the things you want to remember along a familiar route, then walk it in your head. A classic mnemonic technique, practiced inside the app. โ–  Brain Check Short mini-games measure traits like working memory and plot them on a radar chart. Note: the mini-games are for measuring and tracking your own memory traits. They are not claimed to improve memory overall. โ–  Quick capture Make cards from photos, audio, or text. You can also sketch things by hand to remember them. โ–  Private by design Your study data and all AI processing stay on your iPhone. Nothing is sent to a server, and no account is required. โ–  Engram Pro Unlimited decks, memory palaces, and AI, plus iCloud sync. ยฅ600/month or ยฅ4,000/year, with a 7-day free trial on the yearly plan. Good for exam prep, language vocabulary, technical terms, names, and anything else you want to keep for the long run. Note on effectiveness: Engram does not claim to improve general memory or intelligence on its own. What it provides is practice with encoding strategies, review scheduling based on spaced repetition, and measurement of your own memory traits. โ€•โ€•โ€• Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gokigen.space/engram/privacy Subscriptions renew automatically unless turned off at least 24 hours before the end of the period. Your account is charged through the App Store, and you can manage or cancel renewal anytime in your account settings after purchase.

Screenshots

Okinawa Map Puzzle4 screens
Engram4 screens

Verdict

The call

The clearest difference is in-app purchases: Okinawa Map Puzzle at none against Engram's 2. Okinawa Map Puzzle also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Engram's advantage is ads (none vs shown) and update cadence (weekly vs every 6 months). On price 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Engram sells 2 in-app purchases, starting at $3.99 per month. Okinawa Map Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

Okinawa Map Puzzle ships an update every 6 months, Engram weekly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

Scorecard5 real differences ยท 1 level
Okinawa Map Puzzle versus Engram: the parameters behind the verdict, then further details
ParameterOkinawa Map PuzzleEngram
PriceFreeFree
Update frequencyEvery 6 monthsWeekly โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size88 MB4 MB
Age rating4+4+
DeveloperPlus Inc. (Japan)Hirosuke Yonekubo

In-app purchases

None

Okinawa Map Puzzle

No in-app purchases

2 purchases

Engram

Subscriptions2
  • Engram Pro (Monthly)$3.991 Month
  • Engram Pro (Yearly)7 Days trial$24.991 Year

Questions

Is Okinawa Map Puzzle free?
Okinawa Map Puzzle is free to download, with no in-app purchases.
Is Engram free?
Engram is free to download, with in-app purchases available.
Do Okinawa Map Puzzle or Engram have ads?
Okinawa Map Puzzle shows ads; Engram does not.
Which is updated more often, Okinawa Map Puzzle or Engram?
Okinawa Map Puzzle ships an update every 6 months, and Engram weekly. Most recently, Okinawa Map Puzzle was updated on October 9, 2026 and Engram on October 24, 2026.

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