Comparison

Mochi vs OpenWords

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

Head to head
About

Mochi

Create and study flashcards from your notes using markdown. This app employs spaced repetition to optimize learning and reduce study time. Effortlessly convert notes into flashcards and link related information for a comprehensive study network.

Highlights
  • Markdown note-taking
  • Spaced repetition algorithm
  • One-click flashcard creation
  • Card and note linking
  • Media embedding (images, audio, video)
  • Deck sharing
Features
Read full description

Take notes and make flashcards using markdown, then study them using spaced repetition. Mochi gives you the power to create content specific to your study needs. Create a deck from scratch, or share one with a friend. - Mochi uses a spaced repetition algorithm to maximize retention and minimize study time. - Quickly jot down notes and cards at the speed of markdown. Formatting controls and shortcuts are also there if you need them. - Linking between cards and notes is a powerful way to build a network of related information. - Put an end to tediously copying your notes into flash cards one by one. With Mochi you can create flash cards from your notes with one click. - You can embed media to your notes or cards like images, audio, and video by dragging them onto the editor.

About

OpenWords

This app helps you truly remember new words by providing a deep-dive dictionary and vocabulary tool. It offers contextual definitions, flashcards, and spaced repetition to turn lookups into long-term knowledge. Track your progress and master vocabulary without accounts, subscriptions, or ads.

Highlights
  • Multi-sense dictionary lookup
  • CEFR levels and frequency indicators
  • Instant flashcard creation
  • Spaced repetition system (SRS)
  • Multiple study modes
  • Offline access
  • Vocabulary progress tracking
Features
Read full description

OpenWords helps you actually remember the words you look up. It is a deep-dive dictionary and vocabulary tool built for learners who want to truly master English, Dutch, German, Polish, or Russian. Most apps show you a translation and then you forget it. OpenWords is built to turn those lookups into long-term knowledge. The app provides translation support for English, Dutch, German, Spanish, French, Italian, Turkish, Russian, Polish, Czech and Simplified Chinese. DICTIONARY WITH CONTEXT - Multi-sense lookup: Don't just get a translation. See every meaning and save only the specific sense that fits your current context. - CEFR levels & frequency: Know if a word is A1 or B2. See if it's high-frequency daily speech or niche vocabulary so you can prioritize your learning. - Word families: View related roots and forms to understand patterns and grow your vocabulary faster. - Examples & phrases: See how words actually function in real sentences. FROM LOOKUP TO LEARNING - Instant Flashcards: Skip the manual data entry. Just tap the "heart" icon on any word to save it to your list and start learning immediately. - Spaced repetition (SRS): built-in algorithm schedules reviews at the perfect time, ensuring you remember every word for life. - Multiple study modes: Master your list with active recall tools designed to move vocabulary from short-term to long-term memory. - Offline access: Your dictionary and saved word lists work anywhere—no internet connection required. VISUALIZE YOUR PROGRESS - Mastery Tracking: Monitor your vocabulary growth across memory strength levels—from "New" to "Learned." - Performance Analytics: View your review history and daily progress with an integrated activity calendar. PRIVATE, CLEAN, AND FREE - No accounts: No emails, no "Sign in with Google". Your data stays on your device. - No subscriptions, no ads, and no "premium" paywalls. Every feature is available from day one. - Minimalist design: A fast, clean interface that respects your system's light or dark mode settings. - Whether you are prepping for an exam or just trying to navigate a new city, OpenWords gives you the tools to build a vocabulary that actually matters to you.

Screenshots

Mochi4 screens
OpenWords4 screens

Verdict

The call

The clearest difference is rating: OpenWords at 5.0 against Mochi's 4.6. OpenWords also leads on review sentiment (100% vs 81%). Mochi's advantage is ratings volume (175 vs 3). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OpenWords holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mochi has 175 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 81% of Mochi's written reviews are positive against 100% of OpenWords's.

UpkeepUpdate frequency

Mochi ships an update monthly, OpenWords every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Mochi versus OpenWords: the parameters behind the verdict, then further details
ParameterMochiOpenWords
PriceFreeFree
Rating4.6 (175 ratings)5.0 (3 ratings) — better
Positive reviews81.2% of reviews100.0% of reviews — better
Number of ratings175 — better3
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size101 MB62 MB
Age rating4+4+
DeveloperMatthew SteedmanDzina Maslouskaya

Customer experience

Mochi

All ratings175 ratings
Positive90.9%
Neutral2.9%
Negative6.3%
Written reviews117 reviews
Positive81.2%
Neutral8.5%
Negative10.3%

OpenWords

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mochi

No in-app purchases

None

OpenWords

No in-app purchases

Questions

Is Mochi free?
Mochi is free to download, with no in-app purchases.
Is OpenWords free?
OpenWords is free to download, with no in-app purchases.
Which has better reviews, Mochi or OpenWords?
OpenWords is rated higher. Mochi averages 4.6 out of 5 from 175 ratings, while OpenWords averages 5.0 from 3 ratings.
Do Mochi or OpenWords have ads?
Neither Mochi nor OpenWords shows ads.
Which is updated more often, Mochi or OpenWords?
Mochi ships an update monthly, and OpenWords every 3 weeks. Most recently, Mochi was updated on November 3, 2026 and OpenWords on October 30, 2026.

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