Strflow vs Flashcards & Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strflow
This app offers a unique chat-style interface for taking notes, organizing them with tags, and setting reminders. It integrates seamlessly with iOS features and ensures your data is secure and exportable.
- Chat-style note-taking
- Timeline organization
- Tagging system
- Todo lists and reminders
- Quick capture from anywhere
- Rich text editor
- iCloud sync and backup
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Strflow adopts a chat-style timeline format for incredibly simple and beautiful note-taking. Experience the simplicity of note-taking in a texting-yourself style. # Build Your Timeline As you jot down notes, a personal timeline naturally forms. With tags, you can also create timelines focused on specific topics. Tags can be attached or created from anywhere, and you can easily reorder them with drag & drop in the sidebar. # Todo & Reminders, Naturally in Your Timeline Strflow turns your checklists into a dedicated Todo timeline, so you can easily review tasks, check them off, and add new ones from a single view. You can also set notes for future dates and use them as reminders. Scheduled notes stay hidden until the right time, then gently surface with notifications—right when you need them. # Quick Notes Anywhere Sync quickly and capture notes from anywhere. Open the app and start typing instantly, access Strflow from the share sheet — no need to switch apps. # Native on iOS Strflow is designed natively for iOS, blending perfectly with its look and feel. It also integrates with system features like Apple Shortcuts and the share sheet—making it easy to fit into your workflow. # Your Data, 100% Yours Your data is stored safely on your device and in iCloud. When saved to iCloud, it’s encrypted with your iCloud Keychain. For those using iCloud’s Advanced Data Protection, enjoy the added security of end-to-end encryption. All data can also be exported as Markdown, so you can take it anywhere with no lock-in. # A Powerful Editor Strflow supports a wide range of rich-text editing features, including: • Link previews • Checklists • Note links • Inline formatting (bold, italic, etc.) • Block-level formatting (lists, code blocks, quote blocks, etc.) • Images --- Strflow lets you take unlimited notes for free. By joining Strflow Plus, you’ll unlock encrypted sync and backup via iCloud. Prices may vary by location. Subscriptions will be charged to your credit card via your App Store account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Once activated, subscriptions cannot be canceled. Manage your subscriptions in your App Store Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited upon purchasing a subscription. The lifetime option is a one-time, non-renewing purchase that grants permanent access to Strflow Plus features. --- For any questions or feedback, please feel free to contact us at support@strflow.app. We are eager to assist and connect with you! Privacy policy: https://strflow.app/privacy-policy Terms of use: https://strflow.app/terms
Flashcards & Study
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Qardbox remembers what you don’t. The app schedules every card on its own: it shows you a card exactly when you are about to forget it. Not on fixed intervals, but based on what you actually knew. Behind it is FSRS-6, a method from memory research that learns from your answers. HOW IT WORKS One card, one swipe. Right if you knew it, left if you didn’t. Prefer tapping? Turn on the buttons. The card follows your finger and flies off in the direction you push it. YOUR NUMBERS Twenty-nine statistics modules you put together yourself: accuracy, study time, streak, time of day, durability, recall probability. Plus an evaluation in plain sentences, such as “Your accuracy is highest in the afternoon.” YOUR DATA STAYS YOURS No account. No sign-in. No server. No tracking. No ads. Not a single third-party component. Everything lives on your device. If you want, turn on sync through your own iCloud and the same cards are on iPhone, iPad and Apple Watch. Card content, subject names and study times are end-to-end encrypted. Sync is off out of the box; you turn it on yourself. The full privacy policy is in the app, not behind a link. IMPORT AND EXPORT Cards come in as CSV files, including “Open in Qardbox” from any other app. A text template helps you have an AI of your choice build a deck for you. Everything goes back out again: single subjects as CSV, or your complete library including learning states and statistics as a backup. ACCESSIBILITY Nine accessibility settings can be turned on for Qardbox alone, independently of your system settings: reduce motion, bold text, increase contrast, reduce transparency, invert colors, visible buttons instead of swiping, reduced visuals, highlighted controls, and a minimum text size of your own up to the largest step. VoiceOver reads every card and every chart. ON IPHONE, IPAD AND APPLE WATCH On your wrist you see what is due today and study a short round. On the Home Screen there is a widget with today’s progress, and a Live Activity runs during a session. The Action button starts a session or rates the card in front. Siri answers “How many cards are due today?”. WHAT IT COSTS The app is free, with no subscription and no ads. Your own cards are unlimited, and no feature depends on a purchase. Ready-made decks are one-time purchases and work with Family Sharing.
Screenshots
Verdict
The clearest difference is update cadence: Flashcards & Study at every 2 days against Strflow's fortnightly. Strflow's advantage is iOS requirement (18.0 vs 26.0). 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. Strflow sells 4 in-app purchases, starting at $1.49 per month and Flashcards & Study sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Strflow ships an update fortnightly, Flashcards & Study every 2 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | Strflow | Flashcards & Study |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (49 ratings) — better | — |
| Positive reviews | 97.1% of reviews | — |
| Number of ratings | 49 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 73 MB | 212 MB |
| Age rating | 4+ | 4+ |
| Developer | Shingo Eguchi | Simon Harre |
In-app purchases
Strflow
- Strflow Plus (Monthly)7 Days trial$1.491 Month
- Strflow Plus (Annual)14 Days trial$14.991 Year
- Strflow Plus (Lifetime, Subscriber)$27.99
- Strflow Plus (Lifetime)$37.99
Flashcards & Study
- Human Geography$0.99
- Microbiology$0.99
- Organic Chemistry$0.99
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- General Chemistry$0.99
- Insurance Terms$0.99
- Real Estate Vocabulary$0.99
- High School Equivalency$0.99
- Dosage Calculations$0.99
- Personal Training$0.99
- ECG Rhythm Recognition$0.99









