Comparison

KoKoFlash vs LutraTally

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

Head to head
About

KoKoFlash

This app helps users communicate visually and audibly in situations where speaking is difficult. It features a bright flashing screen, customizable messages, and an SOS beacon mode. It also includes an emergency contact display and quick launch options.

Highlights
  • High-brightness flashing screen
  • Adjustable flash speed
  • Pre-registered custom messages
  • Emergency contact display
  • SOS beacon mode (Morse code)
  • Quick launch from lock screen
Features
Read full description

KoKoFlash(ここフラッシュ)は、声でのコミュニケーションが難しい状況や、周囲へ素早く意思を伝えたい場面のために開発された視覚的シグナルアプリです。 体調不良、パニック、不安、聴覚・発話に関する困難、人混みや騒音の中など、「声では伝えにくい」「説明する余裕がない」と感じる場面は少なくありません。KoKoFlashは、そのような状況で画面表示や光によって周囲へ情報を伝えることを目的としています。 アプリには高輝度の点滅スクリーンを搭載しており、遠くからでも気付きやすい表示を行えます。 点滅速度を設定画面から変更でき、強い点滅が苦手な方や光過敏に配慮が必要な方のために、ゆっくりとした点滅モードも用意しています。設定はトグル操作を中心に構成し、必要な機能を迷わず切り替えられるよう工夫しました。 また、事前に伝えたい内容を登録しておける定型メッセージ機能を搭載しています。 例えば、 ・体調が悪いです ・救急車を呼んでください ・家族へ連絡してください ・耳が聞こえません ・筆談をお願いします など、あらかじめ準備しておくことで、緊急時にも落ち着いて表示できます。 ユーザー自身が自由に内容を作成できるカスタムメッセージ機能を利用できます。 例えば、 ・人工関節です ・発作がおさまるまで待ってください ・薬を服用しています ・この番号へ連絡してください など、一人ひとり異なる事情や支援してほしい内容を事前に登録できます。 緊急時には説明する余裕がなくなることもあります。事前に自分の状況やお願いしたい内容を登録しておくことで、安心して利用できます。 また、緊急連絡先表示機能も搭載しています。ユーザーは任意の電話番号を登録でき、画面上へ大きく表示できます。支援が必要な際に周囲の方が連絡先を確認し、家族や支援者へ迅速に連絡することができます。 日本国内での利用を想定し、110番(警察)や119番(消防・救急)をプリセット。ただし、実際の通報は利用者または周囲の方が行う必要があります。 ビーコンモードでは、iPhone背面のLEDフラッシュライトを使用し、国際的に広く認知されているSOS救難信号(・・・ーーー・・・)をモールス信号の点滅で繰り返し送信します。 声が出せない状況や、より強く周囲へ存在を知らせたい場合の補助機能として利用できます。 また、本アプリでは迅速な起動を重視しています。 アプリ内には、iPhoneのロック画面から素早く起動するための設定チュートリアルを搭載しました。画像付きで手順を案内しており、スワイプやボタン操作に不慣れな方でも設定しやすくなっています。 KoKoFlashは、日常の安心と緊急時の意思表示を支援するためのシンプルなツールです。 「伝えたいのに伝えられない」 そんな場面で、少しでも力になれることを目指しています。

About

LutraTally

Effortlessly track income and expenses, monitor budget progress, and manage recurring bills. This ad-free app prioritizes privacy with local-first storage and offers advanced features like receipt scanning and cross-device syncing through iCloud.

Highlights
  • Fast income and expense logging
  • Smart receipt and screenshot scanning
  • Subscription and recurring charge management
  • Financial dashboard with budget progress
  • Cross-device iCloud syncing
  • Home Screen widgets
  • CSV transaction export
Features
Read full description

Record every expense with ease and see budgets, asset changes, and spending trends at a glance. Manage daily expenses, credit-card payments, recurring subscriptions, savings goals, and reimbursements in one place. LutraTally recognises receipts, payment screenshots, and text, and supports quick entry through Shortcuts. It is ready to use, ad-free, requires no sign-up, and keeps your data local first. Key features - Fast entry: categories, subcategories, notes, ledgers, wallets, multiple currencies, and Quick Entry templates. - Smart entry [Pro]: scan receipts or recognise amounts and merchants from screenshots and text. Shortcuts can recognise bank transaction messages; recognition runs on-device. - Subscriptions and recurring reminders: manage subscriptions, recurring charges, card payments, loans, and recurring income. Free supports up to 3 recurring items; Pro unlocks unlimited tracking. - Budgets and insights: monthly income, expenses, budget progress, categories, and subcategories. Pro adds year-to-date and custom-period reports and trends. - Asset overview: manage cash, bank cards, e-wallets, and credit cards; view balances, credit limits, monthly changes, and history; transfer between assets and track repayments and reimbursements. - Savings goals: set targets for travel, devices, or emergencies and track deposits and withdrawals. Pro unlocks multiple goals. - Multiple ledgers [Pro]: create ledgers for personal, family, travel, or other uses, with custom order and default location. - Search and shortcuts: find transactions, reorder categories, edit Quick Entry templates, and use iPhone widgets. - Cross-device sync [Pro]: sync ledgers through private iCloud between iPhone and Apple Watch. - Migration and backup [Pro]: import CSV, Alipay, and WeChat statements; create password-protected encrypted backups. CSV export is always free. - A focused experience: ad-free, no sign-up, local-first storage, with Face ID, Touch ID, or device passcode protection. Note: Apple Watch requires a paired iPhone with Pro enabled and iCloud sync turned on. About Pro - Flexible plans: monthly, quarterly, and yearly auto-renewing subscriptions, plus a one-time Lifetime purchase. - Manage or cancel: charges are billed to your Apple Account. To cancel, turn off renewal in Settings → Apple ID → Subscriptions at least 24 hours before the current period ends. - Data safety: ledger data stays on your device by default. With iCloud enabled, it syncs only through your private iCloud and is not uploaded to developer servers. - Privacy Policy: https://www.lutratally.xyz/apps/lutratally/privacy.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Support: https://www.lutratally.xyz/apps/lutratally/support.html

Screenshots

KoKoFlash1 screens
LutraTally4 screens

Verdict

The call

The clearest difference is review sentiment: LutraTally at 100% against KoKoFlash's 0%. LutraTally also leads on update cadence (every 2 days vs monthly). KoKoFlash's advantage is in-app purchases (none vs 8). On ads, monetization model, 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

UpkeepUpdate frequency

KoKoFlash ships an update monthly, LutraTally every 2 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
KoKoFlash versus LutraTally: the parameters behind the verdict, then further details
ParameterKoKoFlashLutraTally
Price—Free — better
Rating—5.0 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS18.618.0 — better
Further details — not scored
Size8 MB49 MB
Age rating4+4+
Developermasahiko akita玉昌 鲁

Customer experience

KoKoFlash

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

LutraTally

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KoKoFlash

No in-app purchases

8 purchases

LutraTally

Subscriptions3
  • LutraTally Pro Monthly3 Days trial$0.991 Month
  • LutraTally Pro Quarterly$1.993 Months
  • LutraTally Pro Yearly$6.991 Year
One-time5
  • 喝杯奶茶$1.99
  • 请作者喝两杯奶茶$4.99
  • LutraTally Pro Lifetime$9.99
Show 2 more
  • 请作者喝一周奶茶$12.99
  • 请作者喝一个月奶茶$29.99

Questions

Is KoKoFlash free?
Pricing for KoKoFlash is not currently listed on the App Store.
Is LutraTally free?
LutraTally is free to download, with in-app purchases available.
Do KoKoFlash or LutraTally have ads?
Neither KoKoFlash nor LutraTally shows ads.
Which is updated more often, KoKoFlash or LutraTally?
KoKoFlash ships an update monthly, and LutraTally every 2 days. Most recently, KoKoFlash was updated on October 7, 2026 and LutraTally on October 24, 2026.

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