JARVIS vs SubSphere(サブスフィア)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JARVIS
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JARVIS - AI Planner/Assistant Mandalart goal-setting, budget, cards, loans, insurance, assets, schedules, todos, memos and passwords — all in one app. Earn JARVIS Credits by using the app to unlock the AI chatbot, monthly reports and image analysis. Watching one rewarded ad also tops you up. ▶ Mandalart Goal-Setting (Compass) — 1 mission + 8 sub-goals + 64 tasks • The 9×9 Mandalart technique invented by Japanese designer Hiroaki Imaizumi in 1987 and popularized by Shohei Ohtani, fused with AI • A 3-4 question AI interview drafts your life mission, 8 sub-goals and 64 actionable tasks — no blank-grid paralysis • Rewrite in your own words to keep voice and intent intact, not generic "self-improvement" boilerplate • 64 tasks plug straight into Schedule and Todo — one tap turns a Mandalart cell into a calendar event or actionable todo • The chatbot reads your Mandalart context and aligns answers to your goals — "JARVIS knows me" • The "why" layer above Routine, Todo and Schedule; quarterly review prompts to revisit sub-goals ▶ Todo Management — GTD × Eisenhower • GTD status and Eisenhower urgency-importance matrix on one screen • AI sorts a todo by status, schedule and tags from one sentence • DO/SCHEDULE/DELEGATE/DELETE quadrant badges; group by project; weekly auto-review ▶ Chatbot Multimodal Analysis • Attach photos, documents, receipts, audio (MP3/M4A), PDF or text — AI turns them into memos and follow-up todos • "Save as memo" with one tap; mic for real-time voice chat • Replies in your preferred language ▶ AI Daily Planner & Journal — Morning brief, evening review • Every morning, AI summarizes today's routines, todos and schedule in a one-line brief • Every evening, gently reflects on your day and suggests tomorrow's priorities • Capture a one-line journal entry plus a 7-step mood (joyful to angry) • Journal entries appear on the schedule calendar — review them on the same screen • Notifications respect your time zone; available in all 11 languages ▶ Password Vault • Site IDs and passwords with biometric lock; clipboard clears after 30 s; built-in generator ▶ Monthly Premium Report (AI Finance Coach) • AI diagnoses income, spending, budget and assets with tailored advice • Monthly summary + category chart + 6-month trend + budget-vs-actual • Regenerate any time within the month ▶ Home-screen Widgets — 9 kinds • This month's ledger, today's schedule, upcoming payments, weather, FX, today's todos, priority matrix, memo, JARVIS Credits balance • Refreshes every 4h and on launch; tap to jump to detail ▶ Auto Insights + SMS Expense Tracker • Card-style AI insights on balance, budget and spending patterns • "Upcoming payments" in the next 7 days • Categories you correct once are learned and applied first thereafter ▶ Cards & Accounts • Statement day, limit and linked account; presets for issuers across 11 countries • Statement preview — accrued amount by card with installments split monthly • Foreign transactions show original + KRW conversion; FX refreshes every 30 minutes ▶ Loans & Insurance • 3 repayment schedules auto-generated, D-day sorted, early-repayment simulation • 8 insurance types with monthly batch; dues unified in widgets and calendar ▶ Calendar & Sharing • Month/week/day views with custom recurrence • Two-way sync with Google Calendar, iCloud and CalDAV; Kakao Map place search • Share an event link; recipients RSVP without login ▶ Daily Routines • Time-slot checklists with streaks and stats • AI wizard adds 30 suggestions at once; long-press links to Todo and Calendar • Push at each routine's time; all-done earns +5 credits ▶ Memos, Drawings, Sharing & Obsidian • Sticky memos for quick capture; OS share sheet to any app; pen drawings for handwriting • One-tap export to Obsidian Vault, unified note search
SubSphere(サブスフィア)
This app helps you visualize and manage your recurring fixed expenses like subscriptions, utilities, and rent. It provides a dashboard to track payment schedules, spending balance, and identify potential cost-saving opportunities with direct links to cancellation pages.
- Visualize fixed expenses
- Track subscriptions, utilities, rent
- Identify cost-saving opportunities
- Payment schedule tracking
- Direct cancellation links
- Local-first data storage
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固定費の見える化だけで終わらない。AI診断、請求前通知、解約導線まで、支出を減らす行動につながる機能をひとつに。まずは無料で始めて、7日間のPro体験をお試しください! SubSphere(サブスフィア)は、サブスクリプション、通信費、API・サーバー費用、家賃などの固定費をひとつにまとめ、「月間ライフスタイル維持費」として見える化する管理アプリです。 見えない固定費を、次の行動へ。 支払い予定、費用バランス、削減候補、解約導線を一つのダッシュボードで確認できます。 【主な機能】 ・443種類以上のサービスプリセットから素早く登録 ・サブスク、携帯電話、API・サーバー、住居・生活費を横断管理 ・月間・年間の固定費とカテゴリ別バランスを可視化 ・請求日と支払予定をカレンダーで確認 ・「使ってない」「まあまあ」「よく使った」の3択削減診断 ・請求日前のローカル通知 ・公式解約・プラン変更ページへの導線 ・外貨建てサービスの円換算 ・決済ルートと締め日・支払日の管理 【Local-First設計】 登録した固定費データは、原則としてデバイス内に保存されます。アカウント作成や銀行口座のログイン連携は必要ありません。外部通信は、為替レート取得、サービスロゴ表示、Appleのアプリ内課金確認など、機能提供に必要な範囲に限定しています。 【SubSphere Pro】 月額、年額、永久買い切りのいずれかでPro機能を解放できます。 月額・年額プランは、初回7日間無料ですべての機能をお試しいただけます。 ・サブスク登録数の制限解除 ・削減診断と分析機能の制限解除 ・ダークモード ・リアルタイム為替換算 ・JSONインポート・エクスポート 月額・年額プランは自動更新です。購入確定前にAppleの購入画面で価格と条件をご確認ください。購入の復元、サブスクリプション管理、プライバシーポリシーは設定画面からいつでも確認できます。 【自動更新サブスクリプションについて】 ・SubSphere Pro 月額:期間1ヶ月、月額150円(初回7日間無料トライアル) ・SubSphere Pro 年額:期間1年、年額1,480円(初回7日間無料トライアル) ・SubSphere Pro 永久買い切り:一回払い1,980円(自動更新なし) 初回登録時(月額または年額プラン)は7日間の無料トライアルが適用されます。無料期間終了の24時間前までに解約しない場合、自動的に有料プランへ移行し、Apple Accountに請求されます。現在の期間が終了する24時間前までに自動更新を停止しない限り、同じ期間と価格で自動更新されます。更新料金は現在の期間終了前の24時間以内に請求されます。購入後はApp Storeのアカウント設定からサブスクリプションの確認、変更、解約ができます。価格はご利用のApp Storeの国または地域によって異なる場合があり、購入画面に表示された価格が適用されます。 Privacy Policy(プライバシーポリシー): https://subsphere-landing-page.vercel.app Terms of Use(利用規約 / Apple標準EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ※本アプリは家計・固定費の管理を支援するツールです。表示される試算、通知、診断結果は参考情報であり、実際の請求、解約完了、投資成果を保証するものではありません。
Screenshots
Verdict
The clearest difference is update cadence: SubSphere(サブスフィア) at every 2 days against JARVIS's every 2 weeks. 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. Neither carries in-app purchases, so what you see is what you pay.
JARVIS ships an update every 2 weeks, SubSphere(サブスフィア) every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | JARVIS | SubSphere(サブスフィア) |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 103 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | SeungUk Kang | MIKI VIRUD |
In-app purchases
JARVIS
No in-app purchases
SubSphere(サブスフィア)
No in-app purchases









