Best 404 Not Found Apps

6+ iOS apps curated and reviewed

5.0 avg rating
5 free apps
Updated May 2026

Every iPhone needs a few good 404 not found apps. We benchmark 6+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top 404 Not Found Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AiRiseAiRiseFreeNoNoMay 2026
2PistePal: ski maps & trackingPistePal: ski maps & trackingFree5.0★ (3)NoYesJul 2026
3HTTP JournalHTTP JournalFree5.0★ (2)NoNoMay 2026
4URL ComponentsURL ComponentsFree5.0★ (1)NoNoJul 2026
5URL HelperURL Helper$4.99NoNoMay 2026
6404の海 - 404に届く手紙404の海 - 404に届く手紙FreeNoJul 2026

Top Picks for 404 Not Found

HTTP Journal#3

HTTP Journal by Zoe Cutler

Express Urself w/ 404s ;)
Worth Considering
📊 Productivity
5.0(2 ratings)
Free
HTTP Journal screenshot 1

Express your feelings using HTTP response codes. Track your moods, add comments, and visualize trends over time. A unique way to journal your emotions.

More 404 Not Found apps to explore

4
URL Components
URL Components
URL Components
Decode URLs Quickly!
Free

Instantly decode and inspect URLs, parsing components like scheme, host, path, and query parameters. Generate code snippets in Swift, curl, and JavaScript for debugging APIs and web links. Ideal for developers working with web requests and data.

Decode and inspect URLsParse URL componentsGenerate Swift code
🛠️ Developer Tools
(1)
free
5
URL Helper
URL Helper
URL Helper
by Piet Jonas
$4.99
🔧 Utilities
(0)
6
404の海 - 404に届く手紙
404の海 - 404に届く手紙
404の海 - 404に届く手紙
by Satoshi Sakuma
Free
🎬 Entertainment
(0)

FAQ about 404 Not Found

Are there free 404 not found apps for iPhone?
Yes — 5 of the top 404 not found apps we rank are free to download, including AiRise and PistePal: ski maps & tracking.
AiRise has no ads and has no in-app purchases, according to its App Store listing as of May 2026.
We track 6+ 404 not found apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.