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Kotoba - Voice Translation

(株)Kotoba Technologies Japan
App Store·ReferenceFree + IAP★ 4.41 (17)launched 1.3y agoapp updated 7d agocharts in 3 countries
Scout Score
12

Kotoba - Voice Translation generates an estimated $300–$2k/month in revenue from 100–600 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-12).

Estimates updated 12.06.2026 · How we estimate · Ranges reflect model confidence, not exact figures.
Est. revenue / month$300–$2k
Est. downloads / month100–600
Estimate confidencehigh
PricingFree + IAP
Rating4.41 ★ (17 ratings)
CategoryReference
Released21.02.2025
App last updated05.06.2026
PlatformiOS
Est. downloads / mo
100–600
Est. revenue / mo
$300–$2k
Review velocity / day
1▲ 1
Chart velocity
—
Peak rank
—
Days tracked
—

Modeled monthly estimate · high confidence

About

"Kotoba" is a real-time voice simultaneous translation app developed by Kotoba Technologies, aiming to deliver the "world's best simultaneous translation experience." The app is powered by Kotoba's proprietary speech GenAI model called "Koto". "Koto" can predict text translations before you finish speaking (up to 0.5 seconds ahead) or generate coherent speech translations with ultra-low latency.…

View on the App Store → Android version →

Trends & analysis

Chart rank trend

US · overall
Collecting rank history — no snapshots so far. Fills in twice daily.

Why it's surfacing

Scout 12
Newness
12
Breakout
1
Momentum
1

Reviews & velocity

★ +0.04 in window
Total ratings
1716
Jun 4Jun 10
New ratings / day
10
Jun 5Jun 10

Rating distribution

75% positive · 16 ratings
5★
75%
4★
0%
3★
19%
2★
0%
1★
6%

Geographic reach

best rank · 3 storefronts
jp
#4 category
tw
#22 category
kr
#37 category

Revenue & downloads trend

ARPU $2
Est. revenue / mo · $718
$1k$0
Jun 4Jun 12
Est. downloads / mo · 299
1k0
Jun 4Jun 12

In-app purchases

3 tiers
Day pass$10
Unlimited Monthly$100
Unlimited Plan$1000

Update history

2 updates tracked
  • v1.4.67d ago

    Bug fixes and performance improvements

  • v1.4.522d ago

    Bug fixes and performance improvements

Kotoba - Voice Translation — FAQ

How much money does Kotoba - Voice Translation make?

According to AppCurrents estimates, Kotoba - Voice Translation generates approximately $300–$2k per month (high confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.

How many downloads does Kotoba - Voice Translation get?

Kotoba - Voice Translation sees an estimated 100–600 downloads per month on the App Store, per AppCurrents modeling.

Is Kotoba - Voice Translation free?

Kotoba - Voice Translation is free to download on the App Store, monetizing through in-app purchases.

What is Kotoba - Voice Translation's rating?

Kotoba - Voice Translation holds a 4.41-star average from 17 ratings on the App Store.

When was Kotoba - Voice Translation released?

Kotoba - Voice Translation launched on the App Store on 21.02.2025. Its latest version shipped 05.06.2026.

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