Comparison

Deep Dive vs Petalance:Habit Tracker

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

Head to head
About

Deep Dive

Features
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集中した時間の長さが、そのまま潜水艦の到達深度になります。 25分の集中で水深450m。90分なら1500m。深く潜るほど暗くなり、そこにしかいない深海生物と出会えます。集中を中断してアプリを離れると緊急浮上となり、その航海で捕らえた生物はすべて失われます。 実在の深海生物101種 マリアナ海溝の底に暮らすカイコウオオソコエビ、体長比で全魚類最大の牙を持つオニキンメ、鯨の骨だけを食べるホネクイハナムシ。すべて実在の生物で、それぞれに解説がついています。捕らえた生物は剥製として図鑑に収めるか、水槽で泳がせるか、港で売るかを選べます。 潜れる深さは、二つの要素で決まります コインで買える潜水艦の耐圧殻と、航海の回数だけで伸びる乗組員の胆力です。お金では買えない成長があります。海溝の最深部、チャレンジャー海淵の11,034mに到達するには、たくさんの航海が必要です。 集中のための音 低い環境音が途切れずに流れ、その上に泡の音がときどき乗ります。数分に一度、遠くで鯨が鳴きます。長時間かけっぱなしにする前提で設計してあり、耳が疲れる純音を含みません。周囲の物音を覆い隠す働きが期待できます。モノラルビートを含みますが、脳波への作用を主張するものではありません。 設定でオンオフが可能です。 ### そのほか - 5分から24時間まで、5分単位で設定できます - 電話や通知で一瞬離れても、90秒以内に戻れば航海は続きます - 潜った深さの累計を、東京スカイツリー何個分といった単位で表示します - 通信を行いません。データは端末内にのみ保存されます - 広告はありません --- 集中の深さを、水深で測る。

About

Petalance:Habit Tracker

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See Your Habits Bloom Petalance is a habit tracker that turns your daily progress into a flower. Simply add the activities you want to build into petals—such as studying, working out, reading, practicing an instrument, or journaling—and check them off each day to visualize your consistency. Its clean and intuitive interface lets you instantly see the date of your most recent activity, making it easy to track your progress and identify habits that need more attention.

Screenshots

Deep Dive4 screens
Petalance:Habit Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: Deep Dive at none against Petalance:Habit Tracker's 6. Deep Dive 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Petalance:Habit Tracker sells 6 in-app purchases, starting at $1.99 per month. Deep Dive asks for nothing beyond the download.

UpkeepUpdate frequency

Deep Dive ships an update every 5 days, Petalance:Habit Tracker weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Deep Dive versus Petalance:Habit Tracker: the parameters behind the verdict, then further details
ParameterDeep DivePetalance:Habit Tracker
PriceFreeFree
Update frequencyEvery 5 days — betterWeekly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size34 MB25 MB
Age rating4+4+
DeveloperYUTO DOITOMOYA NAKAMURA

In-app purchases

None

Deep Dive

No in-app purchases

6 purchases

Petalance:Habit Tracker

Subscriptions1
  • Premium Monthly$1.991 Month
One-time5
  • Support the Developer$1.99
  • Premium Lifetime$2.99
  • Support the Developer$3.99
Show 2 more
  • Support the Developer$6.99
  • Super Sponsor$19.99

Questions

Is Deep Dive free?
Deep Dive is free to download, with no in-app purchases.
Is Petalance:Habit Tracker free?
Petalance:Habit Tracker is free to download, with in-app purchases available.
Do Deep Dive or Petalance:Habit Tracker have ads?
Petalance:Habit Tracker shows ads; Deep Dive does not.
Which is updated more often, Deep Dive or Petalance:Habit Tracker?
Deep Dive ships an update every 5 days, and Petalance:Habit Tracker weekly. Most recently, Deep Dive was updated on November 6, 2026 and Petalance:Habit Tracker on October 31, 2026.

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