Comparison

Randomizer vs Kosti

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

Head to head
About

Randomizer

Features
Read full description

RANDOMIZER - Your Playful Random Number Generator with Slot Machine Style! Whether for quick decisions, games, or just for fun – Randomizer makes it easy and entertaining. KEY FEATURES: • Slot machine look with realistic sounds and smooth animations • Custom min/max values freely selectable (0-999) • One-tap switching between practical presets: Dice, Coin Flip, Percent, D20, Lottery • No account or registration required • Works completely offline PERFECT PRESETS WITH UP TO 3 AT ONCE: • Dice (1-6) - Classic 6-sided die for board games • D20 (1-20) - Perfect for tabletop RPGs and board games • D4 (1-4) - Tetrahedron die for special games • D8 (1-8) - Octahedron die for advanced game mechanics • D10 (1-10) - Decimal die for percentage calculations • D12 (1-12) - Dodecahedron die for complex games • Coin Flip (1-2) - Digital heads or tails • Lottery (1-49) - Random lottery numbers • Percent (0-100) - Probability calculations USER EXPERIENCE: • Beautiful slot machine animation with particle effects • Realistic dice and coin representations • Roll up to 3 dice at once! • Haptic feedback and sound effects • Dark and light mode support • Smooth, responsive interface IDEAL FOR: • Board games and card games • Making decisions • Tabletop RPGs (D&D, Pathfinder, etc.) • Random selections • Educational purposes • Entertainment and fun Randomizer is your go-to app whenever you need a random number - from simple yes/no decisions to complex number ranges! DISCLAIMER: Random numbers are generated by algorithms (pseudorandom numbers). This app is not suitable for true randomness or cryptographic purposes. The developer assumes no liability for damages arising from the use of this app. For entertainment purposes only. App Store Screenshots based on template: https://www.figma.com/community/file/891325178364097650/template-for-app-store-screenshots, Licensed under CC BY 4.0

About

Kosti

Features
Read full description

Kosti is your all-in-one companion for games, decisions, and random events. Whether you're playing a board game or just need a random number, Kosti delivers with stunning 3D visuals and physics-based interactions. FEATURES: - 3D Dice Roller High-quality, physics-based dice that feel real. Shake your phone to roll! Perfect for board games like D&D, Monopoly, or Yahtzee. - Decision Wheel Spin the wheel to make a random choice. Customizable options coming soon. - Coin Flip A beautifully rendered 3D coin for those 50/50 decisions. Heads or Tails? - Number Generator Generate random numbers between any range (0-99, 1-100, etc.). Ideal for board games or math tools. Premium Experience Enjoy a sleek, modern dark-mode interface with smooth animations. Upgrade to Remove Ads for an uninterrupted experience. Download Kosti today and never carry physical dice again!

Screenshots

Randomizer4 screens
Kosti4 screens

Verdict

The call

The clearest difference is update cadence: Randomizer at every 4 days against Kosti's every 4 months. Randomizer also leads on iOS requirement (13.0 vs 18.2). On price, ads, in-app purchases and device support 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. Randomizer sells 4 one-off in-app purchases and Kosti sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Randomizer ships an update every 4 days, Kosti every 4 months. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Randomizer versus Kosti: the parameters behind the verdict, then further details
ParameterRandomizerKosti
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 4 months
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.2
Further details — not scored
Size45 MB38 MB
Age rating12+4+
DeveloperOliver HaarmannAliaksandr Patskevich

In-app purchases

4 purchases

Randomizer

One-time4
  • Neon Green Theme$0.99
  • Neon Blue Theme$0.99
  • Neon White (Frost) Theme$0.99
Show 1 more
  • Remove Ads$2.99
1 purchases

Kosti

One-time1
  • Remove Ads$2.99

Questions

Is Randomizer free?
Randomizer is free to download, with in-app purchases available.
Is Kosti free?
Kosti is free to download, with in-app purchases available.
Do Randomizer or Kosti have ads?
Both Randomizer and Kosti show ads.
Which is updated more often, Randomizer or Kosti?
Randomizer ships an update every 4 days, and Kosti every 4 months. Most recently, Randomizer was updated on November 8, 2026 and Kosti on October 31, 2026.

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