Simeji is a Japanese input keyboard for iOS and Android that provides custom themes, kaomoji, and a cloud-based dictionary.
Product velocity
Maintenance
Daily rank 🇺🇸
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Tools
Sentiment
4.1
271k reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users hire Simeji for rapid, culturally-relevant Japanese input and visual self-expression that standard system keyboards cannot match.
For Japanese-speaking mobile users seeking high levels of keyboard personalization, social expression, and rapid input tools.
What does it look like?
Key features
Allows users to set photos, images, or videos as keyboard backgrounds. Revenue link: Premium-tier gate restricts luxury custom parts to paid subscribers.
Maintains a 2M entry database including anime slang and buzzwords. Revenue link: High-frequency utility drives daily usage and expands ad-impression inventory.
Converts speech to text with support for 100+ languages. Revenue link: Real-time translation functionality is gated behind the VIP subscription.
How much does it cost?
Subscription model anchored at 400 yen/month, utilizing a free trial to convert users to recurring revenue.
Velocity
Maintenance developmentsocial featuresUX improvementsShow more...
Simeji currently operates at a maintenance cadence, with only one version release identified in the recent window. Development is focused on social integration and communication efficiency tools. The release of new features suggests the app remains supported, but the lack of frequent updates indicates a shift away from rapid iteration. Future development appears centered on enhancing user interaction through keyboard-based social features.
Who built it?
User Sentiment
What do users think recently?
Recent user voice shows an excited sentiment. Users appreciate extensive library of kaomoji and custom keyboard skins provides high levels of visual personalization and keyboard layout efficiency with punctuation placement improves typing speed for users across multiple languages, but report invasive artificial intelligence features and persistent popups disrupt the typing experience in other applications.
How are ratings & reviews evolving?
What users say, by theme
- Extensive library of kaomoji and custom keyboard skins provides high levels of visual personalization
- Keyboard layout efficiency with punctuation placement improves typing speed for users across multiple languages
- Ad-supported model allows users to access premium keyboard themes without requiring a paid subscription
- Invasive artificial intelligence features and persistent popups disrupt the typing experience in other applications
50 of 50 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 2 more frustration themes and 3 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Simeji Japanese keyboard+Emoji
How's the Tools market?
Simeji holds the #12 Grossing and #25 Top Free positions in the Japanese Tools category. The gap between its high discovery rank and grossing performance suggests that while the free tier is widely adopted, the 400 yen/month VIP subscription faces conversion friction.
The rivals identified
The Analyst's Read
Key takeaways for Simeji Japanese keyboard+Emoji
Where is it heading?
The Japanese keyboard market is consolidating around high-utility tools, and Simeji's maintenance-mode update cadence leaves it exposed to rivals that prioritize core stability. If the team does not address the text-selection regressions, the current #12 Grossing rank will erode as power users migrate to more stable alternatives.
- Technical regressions in the latest update break text selection, which compounds the rating drag already visible on Android.
- The latest release introduced social sharing features, signaling that the team is actively investing in new engagement loops.
The SWOT
- 2M-entry cloud dictionary functions as a B2B distribution barrier for anime and buzzword-heavy typing
- Extensive kaomoji library sustains daily organic usage
- Full English localization could capture the untapped non-Japanese speaking demographic
- Native haptic feedback integration would address a top-requested usability gap
Next best moves
Fix text-selection regressions because they break core typing functionality → improve retention baseline
+ 1 more prioritized moveThe counter-intuitive read
The app's reliance on intrusive AI prompts is…
Read the full takeSince the last report: The report reflects a shift toward a mixed outlook, acknowledging active social feature development while highlighting the strategic trade-off between monetization via AI prompts and core stability.
Bottom line
Simeji defends its category lead through deep cultural integration, but the latest update's focus on social features ignores core stability issues, so the PM should prioritize fixing text-selection regressions to protect the retention baseline.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
- [1] Play Store listing, source
Report last updated