ThinkBack vs Quoto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ThinkBack
This app helps you commit information to long-term memory through spaced repetition. It prompts you daily to review notes, organize them with hashtags, and offers private iCloud syncing. Upgrade for enhanced functionality.
- Spaced repetition for memory building
- Daily review prompts
- Note organization with hashtags
- Private iCloud syncing
- Search and filter notes
- Mark notes as memorized
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ThinkBack is a simple tool designed to encourage memory building using spaced repetition. When you periodically repeat something you're more likely to remember it later. The act of repetition helps commit the information to long-term memory. Repetition can help you recall information when you need it. Random ideas, facts, lists — capture whatever you want, ThinkBack will prompt you daily at a time of your choosing to review them, moving your notes one step closer to long-term memory. What do we have to offer? - Privacy! We don't store your content on our servers. All content you enter into the app can be synced with your personal iCloud account. - Daily prompts to review one or more notes, moving them one step closer to long-term memory. - Group your notes into buckets using #hashtags. Quick, easy and flexible. - Search and filter capabilities make it simple to find the note you're looking for. - Mark a note as memorized to remove it from the daily recall rotation. - Pin your favorite notes to the top of the list. There's much more planned, we're just getting started! This app is free with an option to upgrade: I'm a small indie developer, but I don’t think it’s right to charge money unless you find value in the product. With that, a good bit of functionality is offered to you for free with the option to opt-in to more. If ThinkBack is helping make your life a little easier, upgrading costs less than 5 coffees per year. In-App purchase disclaimer: Should you decide to upgrade to Premium, a purchase will be applied to your Apple account at the time of upgrade. Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. Any unused portion of a free trial will be forfeited if you purchase a subscription. For more information, see our Terms of Service (https://sites.google.com/view/thinkback-terms-of-service), Privacy Policy (https://sites.google.com/view/thinkback-privacy-policy) and End User License Agreement (EULA, https://www.apple.com/legal/internet-services/itunes/dev/stdeula/).
Quoto
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Quoto is a quote-keeping app for passages collected from books, articles, and other reading. Add quotes by typing, photo OCR, or voice, and attach an author, source, page, URL, note, and tags. — Adding quotes - Keyboard input, photo OCR, or voice input - Each quote can include author, source, page or location, URL, a note, and tags - Tags can be renamed or deleted later from one place — Library - Filter by author, source, or tag - Keyword search across quote text, author, source, and tags - Sort by text, author, source, or date added - Mark favourites to filter down to important quotes - Export the entire library to CSV — Home - Shows a "today's passage" card with a shuffle button - Displays counts for stored quotes, authors, and tags - Lists recently added quotes — Authors view - Browse quotes grouped by author - Search by author name — Mind maps - Create a mind map with a theme node at the centre - Add quote, author, or free-text nodes - Connect nodes with lines to show how they relate - Pick node colours from a five-colour palette - Pinch to zoom, double-tap to fit the whole board, minimap for navigation - Delete mode for removing connections you no longer need — Settings - Three themes: Light, Sepia, Dark - iCloud sync (opt-in) - Interface available in Japanese and English — Privacy - Quotes are stored on your device - iCloud sync is opt-in; when on, data is mirrored only across your own devices via your Apple ID - OCR uses Apple's Vision framework; voice input uses Apple's Speech recognition — Supported devices - iPhone (portrait) - iPad (portrait and landscape)
Screenshots
Verdict
The clearest difference is in-app purchases: Quoto at none against ThinkBack's 2. ThinkBack's advantage is ads (none vs shown) and update cadence (every 3 days vs every 3 months). On price 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. ThinkBack sells 2 in-app purchases, starting at $1.49 per month. Quoto asks for nothing beyond the download.
ThinkBack ships an update every 3 days, Quoto every 3 months. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.
| Parameter | ThinkBack | Quoto |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 days — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 61 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Sam Storino | Jun Tsuda |
In-app purchases
ThinkBack
- Monthly$1.491 Month
- Yearly$14.991 Year
Quoto
No in-app purchases









