The Random Number Generator! vs Cair
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Random Number Generator!
Generate unpredictable, unique random numbers with advanced algorithms. Customize appearance, hear numbers spoken aloud, and set number ranges. Ideal for lotteries and various applications requiring random selection.
- Superior random number algorithms
- Customizable appearance
- Speech synthesis for spoken numbers
- Selectable minimum and maximum number ranges
- Option for unique number generation
- History of generated numbers
- Second screen support (AirPlay/wired)
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Make sure you have The Random Number Generator for those inevitable times when you urgently need a random number! Features: • Uses advanced algorithms for a unique sequence of random numbers every time. • A customizable appearance. • Speech Synthesis to read out your number in your device language. • Options to choose both a minimum and maximum number to limit the result to the random number you really need. • An option to show a history of generated numbers. • The ability to only generate unique numbers. • A clean, minimalistic layout with no clutter. • Support for second screens using AirPlay or wired connections. • Perfect for raffles, drawings, and lottery picks. • Designed to fully support all iPhone, iPad, and Apple Watch screen sizes. • Supports iPad multitasking, including Split View and Slide Over. This app will constantly be updated and improved. If you have any feedback or suggestions on what you would like to see, please contact us at: Nick@FluffyLogicGames.com This app follows Apple's Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cair
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The Speed of Sound in Air, where you are. The Cair app calculates the Speed of Sound in Air from the air temperature, air pressure, and air humidity, optionally using the local conditions as provided by Apple Weather. If your device supports it, Cair is able to get the local air pressure directly from the device. There are popups to see the values in both metric and imperial units, and you can pick your preferred units for the main display of the values. Cair can pass it's calculated Speed of Sound to another dgApps app, Lambda version 2.0.0 and newer. Lambda can use the Cair calculated Speed of Sound in it's calculation of frequency, wavelength, and musical note. Cair is a universal app, equally at home on an iPhone as on a iPad. In Split Mode on an iPad device, side by side with Lambda, the calculated Speed of Sound in Air is passed in real time to the Lambda app. Cair allows you to share it's calculated Speed of Sound in Air via all the usual sharing methods.
Screenshots
Verdict
The clearest difference is price: The Random Number Generator! at Free against Cair's $0.99. The Random Number Generator! also leads on update cadence (every 3 weeks vs every 37 months) and device support (5 vs 2). Cair's advantage is in-app purchases (none vs 4) and ads (none vs shown). On 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
The Random Number Generator! is free to download; Cair costs $0.99 up front. The Random Number Generator! sells 4 in-app purchases, starting at $0.99 per month. Cair asks for nothing beyond the download.
The Random Number Generator! ships an update every 3 weeks, Cair every 37 months. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | The Random Number Generator! | Cair |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (863 ratings) — better | — |
| Positive reviews | 81.7% of reviews | — |
| Number of ratings | 863 — better | — |
| Update frequency | Every 3 weeks — better | Every 37 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicholas Dean | dgApps |
Bugs and requests
The Random Number Generator!
Reported bugs
12 issues- App keeps crashing on startup
- App sometimes shows a blank screen
- App sometimes won't open
- App occasionally repeats the same number
- Watch version is limited and cannot change range
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- Green slider is broken
- New update doesn't work well, reverts to old number
- Voice function not working for some users
- Haptic feedback sporadically turns on after being turned off
- Auto-generate speed is too fast in new version
- App crashes when connected to a VGA monitor
- App freezes after generating only a few numbers
Requested features
14 requests- Dark mode option
- Ability to autoplay with screen off
- Availability in other languages
- Adjustable font size in data entry fields
- Bluetooth connectivity to TV
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- Add more bells and whistles
- Option for different colored raffle numbers
- Time stamp for each number generated
- Negative number support
- Bluetooth connectivity
- More control over number generation (e.g., sequence length, time interval)
- Ability to set timer for auto-generate speed
- Seven number generators on one page for referees
- Option to never repeat a number consecutively
Cair
Not enough reviews yet to summarise bugs or requests.
In-app purchases
The Random Number Generator!
- Supporter$0.991 Month
- Remove Adverts$0.99
- Coffee!$2.99
- Sandwich!$6.99
Cair
No in-app purchases
Questions
Is The Random Number Generator! free?
Is Cair free?
Do The Random Number Generator! or Cair have ads?
Which is updated more often, The Random Number Generator! or Cair?
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