Comparison

BatteryNest vs ぼくのもじ

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

Head to head
About

BatteryNest

Features
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Tiny animals living with your battery, right on your home screen. Their expressions change as your battery drains, and recover when you charge. A quiet little companion for every charging cycle. BatteryNest is a lifestyle widget app where small animal dioramas evolve based on your iPhone's battery level and charging state. 【Features】 ■ Battery-driven storytelling - Animals change expression and posture based on battery state - The lower the battery, the more rewarding a full charge feels - Charging finally has something to look forward to ■ Always-on home screen widget - Full support for iOS 18+ home screen widgets - A Nest picker appears automatically when you place the widget - Pin different animals to different widgets ■ A growing cast of characters - From soft and gentle to bold and curious — many personalities to choose from - Swap your home screen residents whenever you like - Seasonal limited Nests join from time to time ■ Simple, transparent monetization - Start for free and add Nests you love along the way - 1 ticket = own 1 Nest permanently - BatteryNest Pro unlocks every Nest ■ Zero ads, zero notifications - Designed to never interrupt your moment of calm - Just a little more joy in your charging routine ■ Privacy-first - Anonymous sign-in by default — no email required - Minimal data, account deletion completes in-app 【Who it's for】 - Anyone who loves customizing their home screen - People who want their battery routine to feel a little richer - Those who find joy in cute animal designs - Fans of seasonal aesthetics Terms of Service: https://taroshun32.github.io/app-legal/battery-nest/terms.html Privacy Policy: https://taroshun32.github.io/app-legal/battery-nest/privacy-policy.html

About

ぼくのもじ

Features
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子どもが書いた文字が、ホーム画面の時計や日付になります。 今しか書けない大切な文字 「ぼくのもじ」は、それを毎日ふと目に入るかたちで残すアプリです。 ■ 書く 見本を見ながら画面に指で、1文字ずつ書く。 ひらがな・カタカナ・数字・記号・アルファベットに対応しています。 完成したら...クスッと笑える仕掛けが。 ■ きろく 書いた文字は、きろく画面にに集まっていきます。 同じ文字は書いた日の順に並ぶので、去年の「あ」と今年の「あ」を並べて見られます。 ■ ウィジェット 集めた文字で、ホーム画面のウィジェットを作れます。 ・時計 … 子どもの数字で、いまの時刻 ・日付 … 今日の日付 ・写真 … 名前をつけた写真 ■ 写真にタイトルをつけよう 撮った写真に、子どもの字で名前をつけられます。 写真は保存・シェアしておじいちゃんおばあちゃんにも見てもらおう! ■フォント 世界に一つのオリジナルフォント! フォント(.ttfファイル)として書き出すことができます。 ■ その子の色 7つの色から選べます。きょうだいそれぞれに設定できます。 ■ 見本の文字について 見本にはすべて教科書体を使っています。 iPhoneに入っている一般的な日本語フォントは、学校で習う書き方と形が違うためです。 ■ 安心してお使いいただくために ・広告は表示しません ■ 応援について アプリは基本無料でお使いいただけます。 設定から、開発者への任意の応援(App内課金)ができます。 購入していただいても、機能が増えたり制限が解除されたりすることはありません。

Screenshots

BatteryNest4 screens
ぼくのもじ4 screens

Verdict

The call

The clearest difference is update cadence: BatteryNest at every 4 days against ぼくのもじ's fortnightly. BatteryNest also leads on iOS requirement (15.1 vs 18.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BatteryNest sells 5 in-app purchases, starting at $1.99 per month and ぼくのもじ sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BatteryNest ships an update every 4 days, ぼくのもじ fortnightly. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 5 level
BatteryNest versus ぼくのもじ: the parameters behind the verdict, then further details
ParameterBatteryNestぼくのもじ
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.6
Further details — not scored
Size60 MB61 MB
Age rating4+4+
Developershunta nakamuraNagatomo Miki

In-app purchases

5 purchases

BatteryNest

Subscriptions2
  • BatteryNest Pro (Monthly)$1.991 Month
  • BatteryNest Pro (Annual)$11.991 Year
One-time3
  • Ticket ×1$0.49
  • Ticket ×5$1.99
  • Ticket ×12$4.99
2 purchases

ぼくのもじ

One-time2
  • コーヒー1杯の応援$0.99
  • カフェラテ1杯の応援$1.99

Questions

Is BatteryNest free?
BatteryNest is free to download, with in-app purchases available.
Is ぼくのもじ free?
ぼくのもじ is free to download, with in-app purchases available.
Do BatteryNest or ぼくのもじ have ads?
Neither BatteryNest nor ぼくのもじ shows ads.
Which is updated more often, BatteryNest or ぼくのもじ?
BatteryNest ships an update every 4 days, and ぼくのもじ fortnightly. Most recently, BatteryNest was updated on October 24, 2026 and ぼくのもじ on November 3, 2026.

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