StopTheMadness Pro vs Sumi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StopTheMadness Pro
This browser extension enhances your web browsing experience by preventing websites from interfering with standard browser functions and protecting your privacy. It offers a wide array of unique features to regain control over your online interactions.
- Prevent UI feature disabling (text selection, copy/paste)
- Stop Google AMP and URL tracking parameters
- Bypass URL shorteners and stop autoplaying media
- Hide unwanted website banners and elements
- Customize tab URL editing and font substitution
- Run custom JavaScript and URL redirects
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StopTheMadness Pro is a web browser extension that stops websites from making your browser harder to use, and it protects your privacy on the web. StopTheMadness Pro is not an ad blocker but rather a one of a kind extension with a huge number of unique features! Made by indie developer Jeff Johnson. The support link has documentation and my email address. StopTheMadness Pro includes extensions for Safari on iOS and iPadOS, Safari, Safari web apps, Chrome, and Firefox on macOS. StopTheMadness Pro is a major update to the beloved StopTheMadness extension, adding automatic iCloud sync of settings between all devices, as well as countless other new features and improvements. StopTheMadness Pro features: • Stop websites from disabling user interface features in your browser such as text selection, copy, cut, and paste, drag and drop, contextual menus, AutoFill, ⌘-key keyboard shortcuts, and 2-finger tap to open links in a new tab • Stop Google AMP • Remove URL query tracking parameters automatically • Stop clickjacking on Google Search, Gmail, Facebook, and DuckDuckGo • Stop hyperlink auditing (anchor "ping") • Stop tracking beacons (Navigator.sendBeacon) • Bypass well-known URL shorteners such as bit.ly, tinyurl, and t.co • Stop autoplaying audio and video • Always show Safari's native video controls, including Picture-in-Picture • Unmute videos automatically on first play • Auto-select video playback speed • Stop Safari from pausing audio in background apps such as Apple Music • Hide "Get the app" banners on Google, Google Maps, DuckDuckGo, IMDb, Quora, Patreon, Reddit, and Tumblr • Hide "Sign in with Google" on all websites • Hide "We'd like to send you some notifications" banners on many websites • Hide elements on web pages with a tap • Edit the tab URL in a large separate window instead of Safari's small address bar • Font substitution on websites • Website-specific CSS and JavaScript • Run custom JavaScript snippets at any time • Custom URL redirects • Stop losing characters in maxlength password fields • Force links to open in the current tab instead of a new tab, or force links to open in a new tab instead of the current tab • Force images to the front so you can drag, use the contextual menu, and save • Stop web animations • Stop websites from overwriting your system clipboard • Show the concealed password in password fields • Stop websites from disabling text replacements in Safari • Stop websites from changing the cursor and hiding the scrollbar • Stop the software keyboard from zooming in the web page • Stop websites from disabling pinch to zoom • Reload the web page on a timer • View and edit web page HTML • And many more!
Sumi
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Sumi is a notepad where every line is a calculation. Write "rent = 2450 EUR" and it keeps the number. Write "rent / 4" on the next line and you get each person's share. I use it for trip budgets, splitting bills with housemates, counting hours for invoices and checking how many days are left until a deadline. It handles currencies, units, time and dates, so you can write things like: hotel = 128 EUR per night hotel × 4 total = prev + 15% total in usd round up 7.2 h 8 h × 5 days days until 25 dec Rp 150rb × 3 "prev" is the line above, and "sum" adds up the lines above it that don't have a name. Change one number and the rest update. Lines of plain words are just notes, so you can label things the way you like. Currencies: about 160 of them, plus 20 cryptocurrencies, including USD, EUR, GBP, JPY, IDR, SGD, INR and AUD. Live exchange rates are free, and built-in rates take over when you're offline. Prices per unit work too: "1.2 jt IDR per m2 × 200 m2" or "4 USD per kg". Units: weight, length, volume, area, speed, temperature, data, energy and time zones ("2:30 pm HKT in Berlin"). Lengths multiply into areas: "12 m × 8 m" is 96 m². There's a Guide in the app explaining every feature, and a reference listing every unit and shortcut; tap an example to add it to your sheet. Big numbers: 2.5k, 1.2M and 3bn work, and so do rb, jt and miliar if you're used to writing Indonesian amounts. You can also pick how numbers look: 1,234.56, 1 234,56 or 1.234,56. While you type, the other lines fade back so you can see what you're working on. Hold a result to copy it. Type / for quick commands: jump to another sheet, start a new one, rename it, change the theme or share. Search looks through every sheet, and you can copy a whole sheet as tidy aligned text to paste into a chat. On iPad, your sheets sit in a sidebar with their totals and open as tabs. With a keyboard, ⌘T opens a new tab, ⌘K searches every sheet and ⌘1 to ⌘9 switch tabs. It works in Split View and Stage Manager too. Split a bill by writing "dinner = 120 EUR" and then "dinner / 4". Tap the answer to add names and tick off who has paid. For a whole receipt, write each person and what they had, plus shared dishes, tax and service, and Sumi works out who owes what. Start a section with a # line and fold it down to its subtotal. Costs that grow over time work too: "server = 0.68 USD/h since 1 oct" keeps counting, and "figma = 15 USD/month on 15th" tracks a subscription. A Home Screen widget shows a sheet's total. There's no account and no ads, and nothing is tracked. Your sheets are stored on your device. With Sumi Pro you can turn on iCloud sync to keep them on your iPhone, iPad and Mac; they go to your own iCloud account and nowhere else. Sumi is free with up to 3 sheets, live exchange rates, Cream and Espresso themes (or Auto, which follows your device's light and dark mode) and the small Home Screen widget. Sumi Pro is a one-time purchase, with a 7-day free trial and Family Sharing, and it's the same purchase on iPhone, iPad and Mac. It adds unlimited sheets, iCloud sync, four Catppuccin themes (Latte, Frappé, Macchiato and Mocha), pinning a line's result to the bottom bar, sharing sheets and splits as images, medium, large and Lock Screen widgets, and alternate app icons. There's no subscription. Start free, no sign-up. If you need more sheets, try Pro free for 7 days. Questions or ideas: hello@trysumi.app
Screenshots
Verdict
The clearest difference is price: Sumi at Free against StopTheMadness Pro's $14.99. Sumi also leads on update cadence (every 3 days vs every 10 days). StopTheMadness Pro's advantage is in-app purchases (none vs 2) and chart position (#113 vs unranked). On ads, device support and iOS requirement 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
Sumi is free to download; StopTheMadness Pro costs $14.99 up front. Sumi sells 2 one-off in-app purchases. StopTheMadness Pro asks for nothing beyond the download.
StopTheMadness Pro ships an update every 10 days, Sumi every 3 days. Both last shipped on November 12, 2026.
| Parameter | StopTheMadness Pro | Sumi |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 4.7 (206 ratings) — better | — |
| Positive reviews | 82.2% of reviews | — |
| Number of ratings | 206 — better | — |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #113 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeff Johnson | Sigit Kuncoro |
Bugs and requests
StopTheMadness Pro
Reported bugs
2 issues- Inconsistent behavior with 'Disable on Page' option
- Unreliable 'Force Link into New Active Tab' functionality
Requested features
3 requests- Integrated ad-blocking capabilities
- Improved visual filtering options (e.g., dark mode)
- Easier per-site configuration management
Sumi
Not enough reviews yet to summarise bugs or requests.
In-app purchases
StopTheMadness Pro
No in-app purchases
Sumi
- 7‑Day Pro TrialFree
- Sumi Pro$7.99









