Krun vs The Modern Devil's Dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Krun
Engage with a digital pinwheel that creates captivating optical illusions as it spins and slows. Customize shapes, colors, and speed for a unique visual experience. It's a simple yet mesmerizing tool for all ages.
- Swipe-to-spin pinwheels
- Illusions appear as rotation slows
- Shape, color, and speed customization
- Unlock all content
- Remove ads
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Spin a pinwheel and watch hidden shapes appear while it's moving. Swipe to spin, then enjoy optical illusions as the speed changes. Simple and intuitive for kids and adults. • Swipe-to-spin pinwheels • Illusions that appear as rotation slows • Shape, color, and speed customization • Premium: unlock all and remove ads
The Modern Devil's Dictionary
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"The Modern Devil's Dictionary" is a satirical dictionary app inspired by Ambrose Bierce's classic literary work, The Devil's Dictionary. 【Key Features】 • AI Definition Generation — Enter any word to automatically generate witty, sarcastic, and chuckle-worthy definitions. • Community Sharing — Publish your favorite definitions and share them with other users. • Like System — Give a "Like" to hilarious definitions and explore trending entries. • History Management — Automatically save your generated definitions so you can revisit them anytime. • SNS Sharing — Easily share definitions on X (formerly Twitter) and Facebook. 【Recommended For】 • Anyone seeking a fresh, unconventional perspective on everyday words. • Fans of humor, irony, and satire. • People who love sharing amusing content on social media. • Anyone interested in literature, philosophy, or wordplay. 【About Ambrose Bierce's The Devil's Dictionary】 Originally published in 1911, The Devil's Dictionary is a celebrated satirical dictionary that offers witty, cynical reinterpretations of everyday terms. This app revives that legendary spirit for the modern era, using the power of AI to generate endless humorous definitions. Come explore the hidden truths behind everyday words!
Screenshots
Verdict
The clearest difference is in-app purchases: The Modern Devil's Dictionary at none against Krun's 1. On price, update cadence, ads 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
Both are free to download. Krun sells 1 one-off in-app purchase. The Modern Devil's Dictionary asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.
| Parameter | Krun | The Modern Devil's Dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days | Every 3 days |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 6 MB | 58 MB |
| Age rating | 4+ | 9+ |
| Developer | Shinichiro Eto | GEN MASUBUCHI |
In-app purchases
Krun
- Premium Unlock$2.99
The Modern Devil's Dictionary
No in-app purchases
Questions
Is Krun free?
Is The Modern Devil's Dictionary free?
Do Krun or The Modern Devil's Dictionary have ads?
Which is updated more often, Krun or The Modern Devil's Dictionary?
Other comparisons
