Comparison

RANDOM.ORG vs Lotto Engine 3D

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

Head to head
About

RANDOM.ORG

Generate certified true random numbers and use various randomizing tools. This app provides a coin flipper, dice roller, card shuffler, lotto quick pick, integer generator, and list randomizer, all powered by atmospheric noise for high-quality randomness.

Highlights
  • Certified true randomness
  • Coin flipper
  • Dice roller
  • Card shuffler
  • Lotto quick pick
  • Integer generator
  • List randomizer
Features
Read full description

All randomness wasn't created equal. This app offers certified true randomness, generated with atmospheric noise and independently approved by several testing labs. (See sample certificate from eCOGRA.) You can use our randomizers for free and without ads in this official app. If you would like to support our free services, you can do so by making a donation through our website: https://www.random.org/donate - Coin Flipper with 100 different coins from Ancient Rome to 27 modern currencies - Dice Roller to roll up to six regular dice in one go - Card Shuffler to shuffle playing cards and draw them one at a time - Lotto Quick Pick with more than 170 lotteries from all around the world - Integer Generator to generate true random numbers in configurable intervals - List Randomizer to create and randomize your own lists of items RANDOM.ORG was founded in 1998 and generates certified true randomness from atmospheric noise, which for many purposes is better than the pseudo-random numbers typically used in computer programs. Our mission is the generate the highest quality true randomness and make it available to the world in useful forms.

About

Lotto Engine 3D

This app simulates the physics of balls moving within a container, acting as a fun random number and ball generator. It's a useful tool for various applications, offering a creative and engaging experience.

Highlights
  • Physics engine simulation
  • Random ball generation
  • Random number generation
  • Creative utility tool
  • Automatic subscription option
Features
Read full description

A creative app that simulates the movement of a ball in a container, based on a real physics engine, a fun random ball generator and random number generator. It is a must-have gadget at home. ----------------------------------- 【Lotto Engine 3D Automatic Subscription Instructions】 1. Service Name: Lotto Engine 3D Weekly Subscription 2. Subscription period: 1 week 3. Price: $1.99 4. If you need to cancel the subscription, please manually open the "Settings" of iOS --> go to "iTunes Store & App Store" --> click "Apple ID", select "View Apple ID", enter the "Account Settings" page, click "Subscriptions", and select Lotto Engine 3D Weekly Subscription to cancel the subscription. If you do not close your subscription at least 24 hours before the end of the period, it will automatically renew. 5. Service Agreement (including rules for automatic subscription of super members): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 6. Privacy Agreement: https://github.com/denghejun/lotto_engine_tech_support/blob/main/privacy.md

Screenshots

RANDOM.ORG4 screens
Lotto Engine 3D3 screens

Verdict

The call

The clearest difference is monetization model: RANDOM.ORG at free against Lotto Engine 3D's subscription. RANDOM.ORG also leads on ratings volume (1.3K vs 1). Lotto Engine 3D's advantage is update cadence (daily vs every 3 months) and rating (5.0 vs 4.6). 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. RANDOM.ORG sells 6 one-off in-app purchases and Lotto Engine 3D sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Lotto Engine 3D holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: RANDOM.ORG has 1.3K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

RANDOM.ORG ships an update every 3 months, Lotto Engine 3D daily. The most recent releases landed on October 14, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
RANDOM.ORG versus Lotto Engine 3D: the parameters behind the verdict, then further details
ParameterRANDOM.ORGLotto Engine 3D
PriceFreeFree
Rating4.6 (1.3K ratings)5.0 (1 ratings) — better
Positive reviews59.2% of reviews—
Number of ratings1.3K — better1
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size14 MB19 MB
Age rating4+4+
DeveloperRANDOM.ORG何均 邓

Customer experience

RANDOM.ORG

All ratings1,336 ratings
Positive91.1%
Neutral2.3%
Negative6.6%
Written reviews130 reviews
Positive59.2%
Neutral8.5%
Negative32.3%

Lotto Engine 3D

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

RANDOM.ORG

Reported bugs

3 issues
  • Random number generation issues (repeating numbers, inconsistent behavior)
  • Compatibility problems with newer iOS versions
  • Crashes when using certain features

Requested features

5 requests
  • Ability to paste long lists for randomization
  • Support for multiple types of dice and dice rolling
  • Customizable default settings
  • Offline mode or local data storage
  • Improved list management (sorting, reordering, etc.)

Lotto Engine 3D

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

RANDOM.ORG

One-time6
  • Card Shuffler$0.99
  • Integer Generator$0.99
  • Dice Roller$0.99
Show 3 more
  • List Randomizer$0.99
  • Lotto Quick Pick$0.99
  • All Randomizers$2.99
2 purchases

Lotto Engine 3D

Subscriptions1
  • Lotto Engine 3D Weekly Subs$1.997 Days
One-time1
  • Lotto Engine 3D Lifetime Right$3.99

Questions

Is RANDOM.ORG free?
RANDOM.ORG is free to download, with in-app purchases available.
Is Lotto Engine 3D free?
Lotto Engine 3D is free to download, with in-app purchases available.
Which has better reviews, RANDOM.ORG or Lotto Engine 3D?
Lotto Engine 3D is rated higher. RANDOM.ORG averages 4.6 out of 5 from 1.3K ratings, while Lotto Engine 3D averages 5.0 from 1 ratings.
Do RANDOM.ORG or Lotto Engine 3D have ads?
Neither RANDOM.ORG nor Lotto Engine 3D shows ads.
Which is updated more often, RANDOM.ORG or Lotto Engine 3D?
RANDOM.ORG ships an update every 3 months, and Lotto Engine 3D daily. Most recently, RANDOM.ORG was updated on October 14, 2026 and Lotto Engine 3D on September 23, 2026.

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