Comparison

OpenDNA vs SpeakMemo

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

Head to head
About

OpenDNA

Explore art and philosophy through engaging 5-minute lessons and daily activities. Develop your critical thinking skills by discovering new concepts and recording your insights in a personal notepad.

Highlights
  • 5-minute learning content
  • Daily unusual activities
  • Personal notepad for discoveries
  • Explore Cubism
  • Learn about Haiku
  • Study light and shade in art
  • Investigate Western philosophy
Features
Read full description

- Explore art, philosophy, and literature in short, engaging sessions. - Experience artworks at exhibitions and learn more about their stories through the app. Enjoy content on art, philosophy, and literature anytime, anywhere. At OpenDNA Space in Sengawa, Chofu, Tokyo, we regularly present exhibitions, performances, and other events and programs. By combining actual exhibition visits with the app, you can deepen your understanding of the artworks and discover new perspectives. Whether you use the app on its own or together with OpenDNA Space, OpenDNA invites you to encounter art and culture while discovering new questions and perspectives. OpenDNA Space Related Content FUNAKOSHI Katsura Print Exhibition FUNAKOSHI Katsura (1951-2024) was a Japanese sculptor and printmaker. Enjoy looking at the artist’s diverse print works. 5-Minute Art, Philosophy & Literature Happiness in Western Philosophy What is happiness? How can we be happy? Explore these questions alongside Western philosophers from Ancient Greece to the 20th century. Freedom in Western Philosophy What is freedom? How has the idea of freedom changed over time? Discover how Western philosophers have understood and defined freedom since the days of Ancient Greece. Light and Shade in Visual Arts How do artists use light and shade, and what effects do they create? Think about this question through works by Vermeer, Caravaggio, Degas, Monet, and others. East Asian Philosophy and the Origins of Chinese Characters How were Chinese characters, which have been widely used around the world, created? Discover their origins through Chinese history and myths. Wandering through the World of Haiku Haiku are short poems that capture moments of the seasons and everyday life. Enjoy this unique literary form and let your imagination go into the ordinary and extraordinary. Haiku Theatre Experience haiku through familiar everyday scenes. What kind of landscape or story comes to mind when you listen to each poem? New content is added regularly. Part of the content is available in Japanese only.

About

SpeakMemo

Features
Read full description

Practice the English you actually use. SpeakMemo is a personal phrase notebook that lets you save your own English phrases, listen to a model voice, and rehearse before real conversations. Instead of giving you a huge generic course, SpeakMemo helps you prepare for the moments that matter: meetings, travel, interviews, and everyday conversations. Features Save, edit, and organize your English phrases Add optional notes Sort phrases by tags like Meeting, Travel, Small Talk, and Interview Listen to model pronunciation Speak and check recognition results Review difficult words Pin important phrases for quick access Great for preparing for tomorrow’s meeting practicing interview answers reviewing travel phrases building your own useful English library SpeakMemo is not about endless study. It’s about rehearsing the English you want to use in real life.

Screenshots

OpenDNA4 screens
SpeakMemo4 screens

Verdict

The call

The clearest difference is ads: OpenDNA at none against SpeakMemo's shown. OpenDNA also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
OpenDNA versus SpeakMemo: the parameters behind the verdict, then further details
ParameterOpenDNASpeakMemo
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews95.0% of reviews—
Number of ratings3 — better—
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size116 MB6 MB
Age rating12+4+
DeveloperOpenDNA Inc.TOSHIAKI KIYOTSUNE

In-app purchases

None

OpenDNA

No in-app purchases

None

SpeakMemo

No in-app purchases

Questions

Is OpenDNA free?
OpenDNA is free to download, with no in-app purchases.
Is SpeakMemo free?
SpeakMemo is free to download, with no in-app purchases.
Do OpenDNA or SpeakMemo have ads?
SpeakMemo shows ads; OpenDNA does not.
Which is updated more often, OpenDNA or SpeakMemo?
OpenDNA ships an update monthly, and SpeakMemo monthly. Most recently, OpenDNA was updated on October 24, 2026 and SpeakMemo on October 8, 2026.

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