Comparison

iPennyVibration vs Run Custom JS on Background

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

Head to head

Run Custom JS on Background

Always run custom JavaScript.

Free

🔧 Utilities

No ratingsView app →

About

iPennyVibration

Read full description

This is an APP to test iPhone vibration in different wave type. This APP doesn't support iPad.

About

Run Custom JS on Background

Features

Read full description

・Runs custom JavaScript code continuously in Safari ・Supports a wide range of functions, including automatic bookmarklet execution, ad blocking, and automation. ・Easily paste code using the Paste button ・Supports import and export. You can instantly transfer your settings to other devices.

Screenshots

iPennyVibration1 screens

Run Custom JS on Background3 screens

Verdict

The call

iPennyVibration and Run Custom JS on Background are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences

iPennyVibration versus Run Custom JS on Background: the parameters behind the verdict, then further details
Parameter	iPennyVibration	Run Custom JS on Background
Price	Free	Free
Update frequency	—	Every 4 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone	iPhone, iPad — better
Requires iOS	16.1 — better	17.6
Further details — not scored
Size	2 MB	1 MB
Age rating	4+	4+
Developer	PoChun Chang	Takada Hiroki