Comparison

Bullet Train! vs Utsuro’s diary (Full version)

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

Head to head
About

Bullet Train!

Engage in a thrilling arcade experience where you upgrade your ammunition to inflict maximum damage on enemies. Earn coins by destroying foes to enhance your bullet belt and firing speed. Become a master of destruction with increasingly powerful projectiles.

Highlights
  • Extend bullet belt
  • Upgrade ammo
  • Inflict more damage
  • Destroy enemies
  • Increase firing speed
  • Earn coins
Features
Read full description

Improve your bullets and inflict more damage to your enemies as you progress through the game. Upgrade your ammo belt and bullets with the coins you earn as you destroy your enemies. With each upgrade, your bullets become deadlier, delivering devastating blows to your enemies. Increase the firing speed as you tap on the screen. More taps, more bullets!

About

Utsuro’s diary (Full version)

Engage in a psychological horror adventure where you exchange diaries with a troubled girl. Unravel mysteries, confront her inner darkness, and make choices that shape both your fates in a suspenseful school-life setting.

Highlights
  • Psychological horror gameplay
  • Diary exchange mechanic
  • Mystery and code solving
  • Branching story with multiple endings
  • Spooky environments and sound effects
  • Player-girl emotional bond
Features
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"Utsuro’s diary" is a horror game based on the concept of exchanging diaries with a hollow girl. As the protagonist, the player becomes a girl's friend, confronting her inner darkness while unraveling the mystery of her creepy diary. The stage is school life that is common at school. Dark rooms, dimly lit corridors, and eerie music and sound effects add tension to the player. The game progresses in the form of an exchange diary. The protagonist can obtain her girl's diary and send her his own diary. The contents of the diary are written about the girl's depressive symptoms, her internal conflicts, and experiences of strange phenomena. Depending on the player's choices and actions, the girl's state and the progress of the story will change. Mysteries and codes are hidden in the girl's diary, and the player will face the terrifying truth, such as the existence of the girl's trauma. The ending branches depending on the player's choices and actions, and the girl's fate and the player's own fate are affected. Also, certain choices and behaviors may cause players to suffer from depression themselves. [Effect of the game] Psychological Horror: Over the course of the exchange diary, details about the girl's depression and eerie events will be revealed. The player can feel tension and anxiety by touching the darkness of the girl's heart. As the story progresses, the player himself feels a connection with the girl, and the fear increases as he gets involved in spooky events. The excitement of solving mysteries: The story progresses by solving the mysteries and codes hidden in the diary. Players collect information, deduce and decipher it, and work on solving the mystery. Every time you solve a mystery, you can experience the joy and excitement of getting closer to the truth of the story. Importance of Choices: Your choices and actions affect how the story unfolds and ends. Right choices can help a girl or change her own destiny, but wrong choices and actions can have dire consequences. The importance of such choices keeps the player in suspense and interest. Spooky Environments and Sound Effects: The ruins and dark locations in which the game takes place create an eerie atmosphere. Dim lights and shadows, spooky music and sound effects add tension to the player. Environmental descriptions and sound effects immerse players in the game world with trepidation and terror. Player-Girl Bond: As the protagonist, the player becomes the girl's friend and interacts with her emotions and state. Through her diary exchanges, you can feel empathy and a desire to protect her while witnessing her changes and growth. This emotional bond enhances story progression and player excitement. The player will be able to get close to the girl and enter her inner world, and be forced to make choices that affect her destiny, bringing more realism and involvement to the story. Curiosity about Mysterious Events: The diaries describe spooky events and supernatural phenomena. Players develop an interest and curiosity about those mysteries and inexplicable events, and the pursuit of the truth enhances the appeal of the game. The quest for unsolved mysteries draws the player into the depths of the story. Suspenseful Storytelling: The game offers dramatic storytelling. The tension and curiosity builds as the girl's past and the mysteries surrounding her are revealed. Story developments and plot surprises keep players engaged and excited about what's next. [Recommended for those who know the following works] "Doki Doki Literature Club!" "Nightshade" "Hatoful Boyfriend" "Amnesia: Memories" "Fatal Frame" (Zero series) "Silent Hill" (Silent Hill series) "Catherine" "Rule of Rose" "Saya no Uta" "The Witch's House" "The Crooked Man" "Parasite Eve" "Sweet Fuse: At Your Side" "Tokyo Dark"

Screenshots

Bullet Train!4 screens
Utsuro’s diary (Full version)2 screens

Verdict

The call

The clearest difference is price: Bullet Train! at Free against Utsuro’s diary (Full version)'s $5.99. Bullet Train! also leads on ratings volume (778 vs 4) and update cadence (weekly vs every 3 weeks). Utsuro’s diary (Full version)'s advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support and iOS requirement 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

Bullet Train! is free to download; Utsuro’s diary (Full version) costs $5.99 up front. Bullet Train! sells 10 one-off in-app purchases. Utsuro’s diary (Full version) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Utsuro’s diary (Full version) holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Bullet Train! has 778 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Bullet Train! ships an update weekly, Utsuro’s diary (Full version) every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
Bullet Train! versus Utsuro’s diary (Full version): the parameters behind the verdict, then further details
ParameterBullet Train!Utsuro’s diary (Full version)
PriceFree — better$5.99
Rating4.4 (778 ratings)4.8 (4 ratings) — better
Positive reviews11.1% of reviews—
Number of ratings778 — better4
Update frequencyWeekly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size177 MB146 MB
Age rating12+12+
DeveloperUpperpik Oyun Yazilim ve Pazarlama Ticaret Anonim SirketiYANASE GAMES, INC.

Customer experience

Bullet Train!

All ratings770 ratings
Positive82.6%
Neutral5.2%
Negative12.2%
Written reviews45 reviews
Positive11.1%
Neutral4.4%
Negative84.4%

Utsuro’s diary (Full version)

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Bullet Train!

Reported bugs

4 issues
  • Missions trophy crashes the game
  • Game freezes when clicking on missions
  • Paid for no ads but still have ads
  • Free bonus ad clock not working properly

Requested features

2 requests
  • Need more guns and harder enemies
  • Fix the free bonus ad clock

Utsuro’s diary (Full version)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Bullet Train!

One-time10
  • Drone$1.99
  • Captain$2.99
  • Sergeant$2.99
Show 7 more
  • Flamethrower$2.99
  • Grenade$2.99
  • No Ads$3.99
  • Spy$3.99
  • Air strike$3.99
  • President$4.99
  • Ammo pack$4.99
None

Utsuro’s diary (Full version)

No in-app purchases

Questions

Is Bullet Train! free?
Bullet Train! is free to download, with in-app purchases available.
Is Utsuro’s diary (Full version) free?
Utsuro’s diary (Full version) costs $5.99, with no in-app purchases.
Which has better reviews, Bullet Train! or Utsuro’s diary (Full version)?
Utsuro’s diary (Full version) is rated higher. Bullet Train! averages 4.4 out of 5 from 778 ratings, while Utsuro’s diary (Full version) averages 4.8 from 4 ratings.
Do Bullet Train! or Utsuro’s diary (Full version) have ads?
Bullet Train! shows ads; Utsuro’s diary (Full version) does not.
Which is updated more often, Bullet Train! or Utsuro’s diary (Full version)?
Bullet Train! ships an update weekly, and Utsuro’s diary (Full version) every 3 weeks. Most recently, Bullet Train! was updated on November 3, 2026 and Utsuro’s diary (Full version) on November 8, 2026.

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