deft - vocabulary & flashcards

deft - vocabulary & flashcards

By Ollopa

deft is a dictionary and flashcard builder for language learners, featuring offline-first data storage and FSRS spaced repetition on iOS.

The App DNA

What makes this app unique?

The app removes the connectivity dependency required by cloud-based rivals, serving users who need reliable study tools in low-bandwidth environments.

For Language learners and vocabulary enthusiasts who prioritize offline access and advanced spaced repetition algorithms.

What does it look like?

Key features

On-device Dictionaryedge

Dictionary data resides locally on the device, enabling full functionality without internet connectivity.

FSRS Spaced Repetitionedge

Flashcard scheduling algorithm based on FSRS, an evolution of the SM-2 model used in Anki.

Word Bookmarkingstandard

Users can save and organize specific vocabulary entries for later review.

How much does it cost?

freeFree access to all features

The app operates as a free tool with no visible monetization gates or subscription tiers.

Velocity

Dormant developmentopaqueShow more...

With only one release in the observed window and 241 days since the last update, the app is currently in a zombie state. The latest release provided only generic bug fixes and improvements, offering no insight into active development or new features. There is no evidence of ongoing maintenance or operational support, suggesting the project is no longer receiving active attention from the developer.

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Who built it?

Ollopa

1 app tracked · Education

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User Sentiment

What do users think recently?

Recent user voice shows a thrilled sentiment. Users appreciate the dictionary lookup feature allows users to quickly add new vocabulary cards without leaving the app and a completely free experience without advertisements provides high value for users seeking self-improvement tools.

How are ratings & reviews evolving?

App Store
4.88 · 17

What users say, by theme

What Users Love
  • The dictionary lookup feature allows users to quickly add new vocabulary cards without leaving the app
  • A completely free experience without advertisements provides high value for users seeking self-improvement tools
What Frustrates Users
  • The settings menu displays light mode text on a light background when accessed in dark mode
+ 1 more theme
What Users Want 1 request inside

7 of 7 recent reviews analyzed · limited sample · Thrilled overall

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Competition

Competitive landscape for deft - vocabulary & flashcards

How's the Education market?

deft maintains a 4.88 rating across 17 reviews, positioning itself as a high-utility, ad-free alternative in the education category. The absence of monetization gates suggests a focus on user acquisition over immediate revenue generation.

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The rivals identified

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The Analyst's Read

Key takeaways for deft - vocabulary & flashcards

Where is it heading?

The education category is consolidating around apps with frequent live-ops and social features, leaving deft's static, offline-only model increasingly isolated. Unless the developer resumes a regular update cadence, the app will likely see declining engagement as users migrate to tools with more active support.

  • Eight months of development dormancy suggests the app is in maintenance mode, which risks losing users to more active education tools.
  • The ad-free, offline-first model maintains high user satisfaction, providing a stable foundation if the developer resumes feature investment.

The SWOT

Core Strengths
  • Offline-first architecture removes connectivity dependency
  • FSRS algorithm increases study session efficacy
Critical Frictions 2 weaknesses inside
Growth Levers
  • Home screen widget satisfies top request
Market Threats 1 threat identified

Next best moves

1 Maintain · 1 Invest

Fix dark mode UI regression because it is a top-reported usability complaint → improve retention

+ 1 more prioritized move

The counter-intuitive read

The lack of monetization is deft's primary risk: without a revenue stream…

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Bottom line

deft's offline-first utility and FSRS algorithm retain core users, but the lack of feature updates since March 2026 leaves the app vulnerable to active rivals. Addressing the dark mode UI regression would stabilize the current user experience.

Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is deft free to use?
Yes, deft is currently free to use with no advertisements or subscription gates for any features.
Does deft work without an internet connection?
Yes, deft is designed as an offline-first app, meaning the dictionary data is stored locally on your device for use without internet.
Does deft have a widget for my home screen?
Currently, deft does not offer a home screen widget, though this is a frequently requested feature by users.
What is the difference between deft and Anki?
deft uses the FSRS algorithm for spaced repetition, which is an evolution of the SM-2 model used in Anki, but deft integrates a dictionary lookup directly into the flashcard creation workflow.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by deft - vocabulary & flashcards, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “deft - vocabulary & flashcards Intelligence Report.” Updated Oct 28, 2026. https://marlvel.ai/apps/deft-vocabulary-flashcards

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