Web Toolbox vs Rhythmetic Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Web Toolbox
Monitor your websites and web servers with automated checks for responses and content. Configure various checks like HTTP status codes, headers, and content using CSS selectors or custom JavaScript. Includes DNS, GeoIP, and Whois tools for comprehensive web analysis.
- Automated HTTP status code checks
- HTTP header content verification
- CSS selector-based content checks
- Custom JavaScript execution for checks
- DNS client for server queries
- GeoIP lookup for IP address location
- Tabular Whois client for domain info
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Web Toolbox will help you keep an eye on your sites and web servers. With a few simple steps you can set up automated checks on the responses and content of your web pages. You will be able to run them individually or in batches whenever you want directly from your iPhone and iPad without any subscription. You will be able to configure different types of automated checks: - HTTP Status Code: Indicate the expected HTTP status code, if the code obtained is different the check will fail. - HTTP Header: You will be able to indicate the name of an HTTP header whose content you want to check, you will be able to do an exact check or search for a string within the value. - Content: You will be able to search for an HTML element within the page by indicating its CSS selector and check its content. - Custom JavaScript: Finally you will be able to run a JavaScript script within the page and check its result. You will also be able to decide whether to run the checks on the simple textual response of your web page, or to render the page in a real web browser. To help you identify issues on your websites, Web Toolbox includes several tools: - DNS: A DNS client that will allow you to query DNS servers in your local or remote network with the most popular preconfigured ones (Google DNS, OpenDNS, Cloudflare) - GeoIP: This tool will allow you visually to pinpoint the geographic location of any IP address, as well as obtain other information about the address such as the ISP - Whois: A completely revised Whois client to allow you to access domain name information more easily. In addition to the classic text response, for most Whois servers, you will have access to a tabular mode that will make the domain data more readable and usable.
Rhythmetic Calculator
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Rhythmetic is free. The everyday calculator you'll actually keep on your home screen — with finance depth most calculators don't have. FREE, FOREVER Basic and scientific modes with a formula bar you can type into. Tape history so you can see your work. Tip splitting, currency conversion, and three finance calculators — loan, interest, and salary. Curated internet radio while you work. A nine-pad soundboard. PRO — ONE PURCHASE, NO SUBSCRIPTION All 10 finance calculators: home affordability, VA loan and funding fee, auto, 401k, Roth IRA limits, Social Security timing, and wealth scenarios — with saved history. The full 27-pad sampler across three banks, with mic recording, echo, reverb, flanger and 5-band EQ. Add any radio station by URL. iCloud sync across your devices. TRY IT FIRST Start a 7-day preview of Pro. No payment, no card. When it ends, Pro features lock — but nothing is deleted. Your samples, stations, settings and history stay exactly where you left them. ALREADY BOUGHT RHYTHMETIC? Pro is yours automatically. Tap Restore Purchases. BUILT FOR ACCURACY Version 3.0 corrects VA funding fee, Roth IRA contribution limits, and Social Security retirement calculations against current federal guidance. PRIVATE BY DEFAULT Calculations stay on your device. Analytics are opt-in, anonymous, and off unless you turn them on.
Screenshots
Verdict
The clearest difference is ads: Rhythmetic Calculator at none against Web Toolbox's shown. On price, update cadence, 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
Both are free to download. Web Toolbox sells 2 one-off in-app purchases and Rhythmetic Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Web Toolbox ships an update every 4 weeks, Rhythmetic Calculator every 3 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.
| Parameter | Web Toolbox | Rhythmetic Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (12 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 4 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 15 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Fausto Ristagno | Tomorrow Source, LLC |
In-app purchases
Web Toolbox
- Pro Lifetime (Only PRO users)Free
- Pro Lifetime$2.99
Rhythmetic Calculator
- Rhythmetic Pro$3.99
Questions
Is Web Toolbox free?
Is Rhythmetic Calculator free?
Do Web Toolbox or Rhythmetic Calculator have ads?
Which is updated more often, Web Toolbox or Rhythmetic Calculator?
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