No JS vs Time Calc. Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
No JS
Temporarily disable JavaScript on webpages to prevent intrusive pop-ups, trackers, ads, and paywalls. This utility offers a quick, two-tap solution directly within Safari views, without needing to alter global browser settings.
- Temporarily disable JavaScript
- Block pop-ups and trackers
- Bypass some paywalls
- Works within Safari
- Two-tap activation
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Ever find yourself viewing a webpage when something annoyingly pops up, like an ad, or paywall, or a prompt to sign up for a newsletter? Or maybe you notice that even after the content has loaded, something is still using your network connection? Enter no.js, a tool that helps you effortlessly, and temporarily, disable Javascript for the page you're viewing. Easily prevent popups, tracking or analytics services, ads, and some paywalls. No need to go into your Safari settings and disable Javascript, only to immediately return to enable to. No need to strengthen content blockers, only to loosen them up again. Just two taps from any Safari view. ** No.js is NOT a content blocker. It is an extension that works in all apps that allow sending URLs to other apps. This means almost any app that has a way to view webpages, but actual mileage may vary. Also, some pages may appear broken when viewing them without Javascript, but good websites won't :)
Time Calc. Pro
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A calculator that adds and subtracts hours and minutes. You can see the calculation history. You can change the key layout to look like a computer or a phone as you like. Since no advertisement is given, the history screen can be widened.
Screenshots
Verdict
The clearest difference is price: Time Calc. Pro at $0.99 against No JS's $2.99. Time Calc. Pro also leads on iOS requirement (13.4 vs 15.0). On update cadence, ads, 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
No JS costs $2.99 and Time Calc. Pro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
No JS ships an update every 16 months, Time Calc. Pro every 28 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | No JS | Time Calc. Pro |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.5 (19 ratings) — better | — |
| Positive reviews | 69.6% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 16 months — better | Every 28 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | Peter Compernolle | Hiroyuki Nishijima |
In-app purchases
No JS
No in-app purchases
Time Calc. Pro
No in-app purchases
Questions
Is No JS free?
Is Time Calc. Pro free?
Do No JS or Time Calc. Pro have ads?
Which is updated more often, No JS or Time Calc. Pro?
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