Comparison

Cotomo(コトモ:音声会話型おしゃべりAI) vs VoxDeiDice

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

VoxDeiDice

Features
Read full description

Roll soft, squishy jelly dice and let them decide for you. ROLL - Flick the dice with your finger or tap the Roll button - Tap Roll repeatedly to toss the dice higher and higher - Tilt or shake your device to make the dice tumble - Dice respond with sound and haptics when they collide - Adjust how soft the dice are and how long they wobble DRAW - Add 2 to 36 options and the dice pick one - With up to 6 options, the names appear on the faces of a die - With 7 or more, roll twice: the first roll picks a group of options shown on the faces, the second picks one from that group - Create multiple lists and switch between them - Results are saved in your history - Or just roll 1 to 6 dice freely without drawing All data stays on your device and is never sent anywhere.

Screenshots

Cotomo(コトモ:音声会話型おしゃべりAI)4 screens
VoxDeiDice4 screens

Verdict

The call

The clearest difference is in-app purchases: VoxDeiDice at none against Cotomo(コトモ:音声会話型おしゃべりAI)'s 11. VoxDeiDice also leads on update cadence (every 2 days vs every 4 days). Cotomo(コトモ:音声会話型おしゃべりAI)'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and ads 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. VoxDeiDice asks for nothing beyond the download.

UpkeepUpdate frequency

Cotomo(コトモ:音声会話型おしゃべりAI) ships an update every 4 days, VoxDeiDice every 2 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Cotomo(コトモ:音声会話型おしゃべりAI) versus VoxDeiDice: the parameters behind the verdict, then further details
ParameterCotomo(コトモ:音声会話型おしゃべりAI)VoxDeiDice
PriceFreeFree
Rating4.1 (7 ratings) — better—
Positive reviews40.9% of reviews—
Number of ratings7 — better—
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size109 MB2 MB
Age rating9+4+
DeveloperStarley Inc.Junpei Wada

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
None

VoxDeiDice

No in-app purchases

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 VoxDeiDice free?
VoxDeiDice is free to download, with no in-app purchases.
Do Cotomo(コトモ:音声会話型おしゃべりAI) or VoxDeiDice have ads?
Neither Cotomo(コトモ:音声会話型おしゃべりAI) nor VoxDeiDice shows ads.
Which is updated more often, Cotomo(コトモ:音声会話型おしゃべりAI) or VoxDeiDice?
Cotomo(コトモ:音声会話型おしゃべりAI) ships an update every 4 days, and VoxDeiDice every 2 days. Most recently, Cotomo(コトモ:音声会話型おしゃべりAI) was updated on October 16, 2026 and VoxDeiDice on October 10, 2026.

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