Comparison

Cotomo(コトモ:音声会話型おしゃべりAI) vs MochiChat

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

Head to head
About

Cotomo(コトモ:音声会話型おしゃべりAI)

Engage in dynamic AI conversations with unique personalities and step into interactive stories where your choices matter. Build evolving relationships through shared memories and explore various conversation modes, including roleplay and casual chat.

Highlights
  • AI-powered interactive stories
  • Unique AI personalities
  • Evolving relationships with shared memories
  • Romance and roleplay modes
  • Immersive voice audio
  • Create custom AI characters
Features
Read full description

Cotomo is an AI conversation experience where stories, relationships, and unforgettable characters come to life. Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time. ■ Stories You Can Talk To Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes. ■ Find Your Cotomo Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different. ■ Relationships That Evolve Shared memories grow overtime, building relationships that are unique to you! ■ Multiple Conversation Experiences Experience immersive conversations with cinematic stage directions, or switch to everyday conversations. ■ Immersive Voice Audio Experience voiced AI conversations, including Japanese voice chats with live English subtitles. ■ Create Your Own Cotomo Design your own characters, customizing personalities, backstories, voices, and even quirks!

About

MochiChat

Connect with AI companions designed to offer support and understanding. Create your ideal AI character and build a lasting emotional bond through daily interaction. Find comfort and warmth anytime with a virtual friend.

Highlights
  • AI confidant available 24/7
  • Customizable AI character creation
  • Build emotional bonds
  • Daily greetings and companionship
  • Warm and reassuring interactions
Features
Read full description

Come to Mochi and melt away your worries and loneliness! In the world of Mochi, there's always an AI confidant waiting for you. They are gentle and vivid, understanding your unspoken thoughts, never absent when you need them. You can define your ideal character, build a unique connection with them, and foster a long-lasting emotional bond through daily greetings and companionship. From sharing life's little moments to accompanying you softly at any hour, Mochi makes every moment warm and reassuring.

Screenshots

Cotomo(コトモ:音声会話型おしゃべりAI)4 screens
MochiChat4 screens

Verdict

The call

The clearest difference is monetization model: Cotomo(コトモ:音声会話型おしゃべりAI) at free against MochiChat's free with in-app purchases. Cotomo(コトモ:音声会話型おしゃべりAI) also leads on rating (4.3 vs 4.0). MochiChat's advantage is review sentiment (62% vs 41%) and ratings volume (49 vs 8). 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. Cotomo(コトモ:音声会話型おしゃべりAI) sells 11 one-off in-app purchases and MochiChat sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cotomo(コトモ:音声会話型おしゃべりAI) holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: MochiChat has 49 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 41% of Cotomo(コトモ:音声会話型おしゃべりAI)'s written reviews are positive against 62% of MochiChat's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Cotomo(コトモ:音声会話型おしゃべりAI) ships an update every 6 days, MochiChat weekly. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
Cotomo(コトモ:音声会話型おしゃべりAI) versus MochiChat: the parameters behind the verdict, then further details
ParameterCotomo(コトモ:音声会話型おしゃべりAI)MochiChat
PriceFreeFree
Rating4.3 (8 ratings) — better4.0 (49 ratings)
Positive reviews40.9% of reviews61.5% of reviews — better
Number of ratings849 — better
Update frequencyEvery 6 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size116 MB132 MB
Age rating9+12+
DeveloperStarley Inc.跃动引擎(上海)科技有限公司

Customer experience

Cotomo(コトモ:音声会話型おしゃべりAI)

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews22 reviews
Positive40.9%
Neutral22.7%
Negative36.4%

MochiChat

All ratings49 ratings
Positive67.3%
Neutral16.3%
Negative16.3%
Written reviews13 reviews
Positive61.5%
Neutral23.1%
Negative15.4%

In-app purchases

11 purchases

Cotomo(コトモ:音声会話型おしゃべりAI)

One-time11
  • Cotomo Coin x125$2.49
  • Cotomo Coin x250$2.49
  • Cotomo Coin x500$4.99
Show 8 more
  • Cotomo Essentials Pack 9.99$9.99
  • Cotomo Coin x525$9.99
  • Cotomo Coin x1000$9.99
  • Cotomo Coin x2750$49.99
  • Cotomo Coin x5000$49.99
  • Cotomo Coin x10000$99.99
  • Cotomo Coin x14700$249.99
  • Cotomo Coin x25000$249.99
8 purchases

MochiChat

One-time8
  • mochi_voice_card$1.49
  • Coins 500$1.69
  • Coins 1000$2.99
Show 5 more
  • Mochi Pass Intro$3.49
  • Mochi Pass 30 Days$4.99
  • Coins 2800$7.49
  • Coins 4000$9.99
  • Coins 6000$13.99

Questions

Is Cotomo(コトモ:音声会話型おしゃべりAI) free?
Cotomo(コトモ:音声会話型おしゃべりAI) is free to download, with in-app purchases available.
Is MochiChat free?
MochiChat is free to download, with in-app purchases available.
Which has better reviews, Cotomo(コトモ:音声会話型おしゃべりAI) or MochiChat?
Cotomo(コトモ:音声会話型おしゃべりAI) is rated higher. Cotomo(コトモ:音声会話型おしゃべりAI) averages 4.3 out of 5 from 8 ratings, while MochiChat averages 4.0 from 49 ratings.
Do Cotomo(コトモ:音声会話型おしゃべりAI) or MochiChat have ads?
Neither Cotomo(コトモ:音声会話型おしゃべりAI) nor MochiChat shows ads.
Which is updated more often, Cotomo(コトモ:音声会話型おしゃべりAI) or MochiChat?
Cotomo(コトモ:音声会話型おしゃべりAI) ships an update every 6 days, and MochiChat weekly. Most recently, Cotomo(コトモ:音声会話型おしゃべりAI) was updated on October 21, 2026 and MochiChat on October 19, 2026.

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