Comparison

わたしの日本地図 47都道府県ひとふで vs Primal Fun

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

わたしの日本地図 47都道府県ひとふで

Draw the outlines of Japan's 47 prefectures from memory in a single stroke. Your drawing accuracy is scored based on regional specialties and geography, with three difficulty modes to test your knowledge. Complete your hand-drawn map and share your achievements.

Highlights
  • Draw prefectures from memory
  • Scoring based on regional specialties
  • Three difficulty modes
  • Complete a hand-drawn map
  • Shareable results and achievements
  • Offline play
Features
Read full description

一筆書きで、47都道府県を描け。 「わたしの日本地図」は、記憶だけを頼りに都道府県の輪郭を一筆で描く、新感覚のお絵かき評価ゲームです。描いた形は実際の県境と照合され、県ごとに異なる評価軸でスコア化されます。 ■ 形がそのまま「県の運命」になる ・能登半島が短い → 金沢金箔・海の幸スコアが激減 ・下北半島を描き忘れる → マグロに逃げられる ・土佐湾の弓なりが甘い → カツオが不漁に 名産・地理にちなんだ評価軸が、あなたの手の震えを容赦なく採点します。 ■ 3段階のガイドモード ・激甘:なぞりガイドで地図を覚える ・ノーマル:隣県のうっすらシルエットだけ ・ハード:ガイドなし、記憶のみで挑戦 ■ 手描きの日本地図が完成していく 遊ぶほどに、自分の描いた(少し歪んだ)形で日本地図が埋まっていきます。47県コンプリートは最高のスクリーンショット映え。 ■ レーダーチャート・称号・共有カード 軸別スコアをレーダーで可視化。「地図帳の妖精」「半島どこ置いてきた」など、低スコアでも笑える称号が待っています。結果はSNSでシェア。 完全オフラインで遊べます。地図データは国土数値情報(国土交通省)由来、統計値は e-Stat 等を参照した推定・目安です。 ※アプリ内課金「全国制覇パック」で全47県の開放・広告除去・称号図鑑の全解放ができます。

About

Primal Fun

A collection of 23 mini-games designed for 2-6 players using a single phone. Enjoy quick rounds and instant fun across various senses, with options for solo practice or tournament-style play. Unlock all games with a one-time purchase.

Highlights
  • 23 mini-games across 5 senses
  • Playable on a single phone
  • Supports 2-6 players
  • Instant gameplay, no complex rules
  • Tournament-style play
  • Solo practice mode
  • Offline play
Features
Read full description

Put one phone in the middle of the table. Everyone taps their own side. That's it: the whole family is playing. I'm a dad of two, ages 6 and 4. I made Primal Fun so my kids, my wife and I could play together on one phone. The rules take 3 seconds, so even my 4-year-old jumps right in. And yes, the kids beat me more often than I'd like to admit. ■ Rules in 3 seconds, rounds in 10 Tap when the color changes, pass the bomb, stop at exactly 7 seconds… no long explanations, just laughing together. For 2–6 players on a single phone. ■ 23 mini games across 5 senses · Reflex – Faster Than Light, Tap the Real One, Left? Right!, Pop! · Sense – Exactly 7s, Just That Far, Dead Center, Cut in Half, Metronome · Touch – In Step!, Push Out!, Mash!, Perfect Shape, Tightrope · Eye – Right Now!, Odd One Out, Number Hunt, What's Missing?, How Many? · Nerve – Pass It!, Don't Be Last, Shrinking Zone, One More? Every game tests something different, so the winner changes from game to game. ■ Like a real tournament Pick how many games to play, spin the random roulette or choose each game. Standings build up game by game, and the champion takes the podium! ■ Solo too Chase your personal best in every game with Solo Practice. ■ No ads · No subscription 7 games are free the moment you install. Unlock the other 16 with a single purchase, yours forever. No ads will ever pop up in front of your kids. Plays offline. After dinner, rainy weekends, waiting at a restaurant, holidays with grandparents: one phone is all you need.

Screenshots

わたしの日本地図 47都道府県ひとふで4 screens
Primal Fun4 screens

Verdict

The call

The clearest difference is ads: Primal Fun at none against わたしの日本地図 47都道府県ひとふで's shown. Primal Fun also leads on update cadence (every 2 days vs every 4 days). わたしの日本地図 47都道府県ひとふで's advantage is iOS requirement (15.0 vs 17.0). On price, review sentiment, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. わたしの日本地図 47都道府県ひとふで sells 1 one-off in-app purchase and Primal Fun sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

わたしの日本地図 47都道府県ひとふで ships an update every 4 days, Primal Fun every 2 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 5 level
わたしの日本地図 47都道府県ひとふで versus Primal Fun: the parameters behind the verdict, then further details
Parameterわたしの日本地図 47都道府県ひとふでPrimal Fun
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 4 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size32 MB126 MB
Age rating4+4+
Developersyoutarou ookuraJuyeon Yu

Customer experience

わたしの日本地図 47都道府県ひとふで

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Primal Fun

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

わたしの日本地図 47都道府県ひとふで

One-time1
  • 全国制覇パック$1.99
1 purchases

Primal Fun

One-time1
  • Unlock All Games$2.99

Questions

Is わたしの日本地図 47都道府県ひとふで free?
わたしの日本地図 47都道府県ひとふで is free to download, with in-app purchases available.
Is Primal Fun free?
Primal Fun is free to download, with in-app purchases available.
Do わたしの日本地図 47都道府県ひとふで or Primal Fun have ads?
わたしの日本地図 47都道府県ひとふで shows ads; Primal Fun does not.
Which is updated more often, わたしの日本地図 47都道府県ひとふで or Primal Fun?
わたしの日本地図 47都道府県ひとふで ships an update every 4 days, and Primal Fun every 2 days. Most recently, わたしの日本地図 47都道府県ひとふで was updated on November 10, 2026 and Primal Fun on November 6, 2026.

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