Deckbase vs Otto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deckbase
This AI-powered study assistant generates flashcards from various file types and chat inputs. It utilizes spaced repetition for effective long-term memory retention and offers AI-generated images and audio for enhanced learning.
- AI chat assistant for instant flashcard generation
- AI image and audio generation for mnemonic aids
- Bulk flashcard creation from documents and files
- OCR for generating cards from photos and scans
- Spaced repetition for memory retention
- Clean and focused study interface
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Deckbase is an AI flashcard maker. Turn PDFs, lecture notes, photos and chat prompts into flashcards in seconds, edit the drafts, then study them with spaced repetition, quizzes and audio. Why Deckbase: - Flashcards from your study materials Upload PDFs, notes, images, DOCX, Excel or CSV and get a first draft of flashcards in seconds. Review and edit every card before you study. - AI chat assistant Name a topic or ask a question in chat and get a deck back instantly. - Scan pages with your camera Take a photo of a textbook page or handout and turn the text into cards without typing. - AI images and voice Add mnemonic images and natural pronunciation audio to every card. Great for vocabulary and language learning. - Listen to your decks Turn a deck into an audio track and review on a walk, on your commute or at the gym. Tracks can read each block's label aloud, so you always know what you're hearing. - Quizzes that keep you sharp Test yourself with multiple choice, matching, word order and typed answers. Build streaks, and tap "I don't know" to see the answer instead of guessing. - A review scheduler you can trust Reviews follow proven SM-2 and FSRS scheduling, with per-deck presets for new cards, daily limits and learning steps. - Works with your Anki decks Import .apkg files with their note types and layouts, or export back anytime. No lock-in. - Study anywhere Your decks and progress sync between iPhone, iPad and the web. Deckbase is available in 45 languages. - For every kind of learner Exam prep, medical school, nursing, language vocabulary, certifications and professional learning. How it works: 1. Add a file, a photo or a chat prompt 2. Review and edit the AI draft 3. Study with spaced repetition, quizzes and audio tracks Legal: Privacy Policy: https://www.deckbase.co/privacy-policy Terms and Conditions: https://www.deckbase.co/terms-and-conditions
Otto
This app helps college students and parents track critical university dates like housing deposits, FAFSA renewals, and tuition payments. It provides personalized timelines and timely reminders to prevent missed deadlines and potential financial loss.
- Personalized deadline timelines
- Official university dates
- Escalating reminders
- Instant alerts for date changes
- Mark deadlines as complete
- Add custom deadlines
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Last year, 40% of college students missed a critical deadline. Lost housing. Lost financial aid. Lost an entire semester. Otto makes sure that doesn't happen to you. Tell Otto your university and it finds every deadline that matters — housing deposits, FAFSA renewals, breaks, registration windows, tuition payments — pulled directly from your school's official calendar. No more digging through emails. No more checking six different portals. No more hoping you don't forget. — HOW IT WORKS — → enter your university, graduation year, and housing status → otto builds a personalized deadline timeline in seconds → you get reminders at 30 days, 7 days, and 1 day before each one → if your school changes a date, otto alerts you immediately — FOR STUDENTS AND PARENTS — whether you're tracking your own deadlines or keeping an eye on your student's, otto works for both. parents get full visibility into every upcoming date. — WHAT YOU GET — → every official deadline in one place → escalating reminders so nothing slips → instant alerts when dates change → mark deadlines done as you complete them → add your own custom deadlines one missed deadline can cost thousands. otto costs less than $1 a week. — SUBSCRIPTION — Otto allows a 3-day free trial to test things out. otto pro unlocks everything: → monthly: $6.99/month → annual: $49.99/year ($4.17/month) with a 3-day free trial payment is charged to your Apple ID at confirmation of purchase. subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. your account will be charged for renewal within 24 hours prior to the end of the current period. you can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Otto at 100% against Deckbase's 0%. Otto also leads on ads (none vs shown) and update cadence (every 2 days vs weekly). Deckbase's advantage is monetization model (free with in-app purchases vs subscription). On price, 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. Deckbase sells 7 in-app purchases, starting at $5.99 per month and Otto sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Deckbase ships an update weekly, Otto every 2 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | Deckbase | Otto |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 120 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Yosuke Sakurai | Silas Streeter |
Customer experience
Deckbase
Otto
In-app purchases
Deckbase
- Basic Month7 Days trial$5.991 Month
- Pro Month7 Days trial$11.991 Month
- Basic Year7 Days trial$59.001 Year
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- Pro Year7 Days trial$119.001 Year
- Starter Pack$4.99
- Booster Pack$9.99
- Mega Pack$19.99
Otto
- Monthly$9.991 Month
- Yearly3 Days trial$49.991 Year









