カンペ vs Random Number
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
カンペ
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The カンペ is very easy drawing tool like a flip-board! Touch left-bottom corner to discard a page.
Random Number
Generate fair random numbers using three distinct algorithms: true random, shuffled deck, or bell curve. Set custom ranges, view history, and use for raffles, prize draws, or educational purposes.
- Three distinct random number algorithms
- Customizable min/max range
- History of generated numbers
- Fair raffle and prize draw generation
- Dice rolling for games
- Probability and statistics teaching tool
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Generate fair random numbers with three distinct algorithms — each tuned for a different kind of randomness. • True Random — every number has equal chance every time. Great for raffles, lotteries, fair picks, and any moment you need an unbiased result. • Shuffled Deck — every number in your range is drawn exactly once before any repeats. Perfect for prize draws, picking winners without duplicates, classroom name pickers, and dealing cards. • Bell Curve — results cluster near the middle of your range following a normal distribution. Useful for dice-style mechanics, statistics teaching, and any scenario where extreme values should be rare. Features • Set any min/max range • View the history of generated numbers • Clean, fast SwiftUI interface built for iPhone Use cases • Roll dice for board games and tabletop RPGs (D&D, d20, custom dice) • Draw winners for raffles, contests, and giveaways • Pick a name from a list of students, teammates, or friends • Flip a coin or make a quick 50/50 decision • Generate lucky-style numbers (not affiliated with any official lottery) • Teach probability and statistics with three distributions side by side
Screenshots
Verdict
The clearest difference is price: Random Number at Free against カンペ's $0.99. Random Number also leads on update cadence (every 3 weeks vs every 3 months) and review sentiment (100% vs 82%). カンペ's advantage is ads (none vs shown) and iOS requirement (14.0 vs 17.0). On rating, 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
Random Number is free to download; カンペ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for カンペ against 5.0 for Random Number. That said, the two scores are not equally well evidenced: Random Number has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 82% of カンペ's written reviews are positive against 100% of Random Number's.
カンペ ships an update every 3 months, Random Number every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | カンペ | Random Number |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (9 ratings) |
| Positive reviews | 81.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 9 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Teruaki Onoda | Fawkes Wei |
Customer experience
カンペ
Random Number
In-app purchases
カンペ
No in-app purchases
Random Number
No in-app purchases
