Comparison

Semonto vs Calculo

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

Head to head
About

Semonto

This tool provides 24/7 monitoring for websites, servers, and applications. It sends instant notifications when issues arise, allowing for prompt resolution before users are affected. Key features include uptime reports and custom server testing.

Highlights
  • Website monitoring
  • Server monitoring
  • HTTPS certificate monitoring
  • Status Pages
  • Uptime Reports
  • PulseChecks
  • Custom Server Testing
Features
Read full description

Semonto is an uptime monitoring app that allows you to keep an eye on your websites, servers and apps 24/7. Get notified when something goes wrong so that you can fix it before anyone notices. Features: · Website monitoring · Server monitoring · HTTPS certificate monitoring · Status Pages · Uptime Reports · PulseChecks · Custom Server Testing Semonto is great for: · Website Owners · Server Owners · Webshop Owners · Web Developers More information on https://semonto.com

About

Calculo

Features
Read full description

Calculo is a smarter way to calculate. Instead of punching buttons, you type. Math, notes, and answers — all on one screen, in plain language. Now with AI built in. Type 100 USD to EUR and get today's live exchange rate. Type x = 5 and use x in every line that follows. Type 15 kg to lbs and convert instantly. Calculo reads what you write and evaluates it — line by line, as you type. WHAT YOU CAN DO Math that reads like writing Type expressions naturally — 2 + 3, sqrt(144), 2^10 — and see results appear instantly, right beside your text. Ask Calculo — your built-in AI Not sure how to write it? Just ask. Type a question in plain English — "20% tip on 84.50" or "how many grams in 3 cups of flour" — and Calculo works it out, right on the canvas. Smart autocomplete Calculo predicts what you're typing and finishes the line for you — units, currencies, functions, variable names. Accept the suggestion and keep moving. Unit conversion — 213 units Weight, length, temperature, volume, speed, data, duration, angles, and more. Just write 5 miles to km or 98.6°F to celsius. Units combine and cancel, too — write 9.81 m/s^2 * 70 kg and get the force in newtons. Real-time currency conversion 180+ currencies with live rates. Convert with symbols, names, or ISO codes — $500 to ¥, 420 EUR to GBP, or 100 rubles to usd. Variables Store values and reference them by name. Write tax = 0.2, then price + price * tax — Calculo handles the rest. Use natural, multi-word names like monthly rent. Templates Build reusable calculation sheets with editable inputs and live outputs. Tap Play, fill in the numbers, get the answer. Perfect for recurring tasks: VAT, mortgage, tip splits, unit costs. Graphs Visualize arrays as line graphs directly on the canvas. Define a range, write an expression, see the curve. Organized notes Create multiple notes, organize them into folders, and search across everything. Your calculation history lives where you left it. FREE — NO REGISTRATION REQUIRED Download and start calculating immediately. No account needed. Notepad calculator with inline results Ask Calculo AI Smart autocomplete Unit conversion — 213 units Real-time currency conversion — 180+ currencies Variables and natural language input A single saved note PREMIUM — UNLOCK EVERYTHING Unlimited notes — no cap, ever Templates — build and run reusable calculation sheets iCloud sync — seamlessly across iPhone, iPad, and Mac Face ID lock — protect sensitive notes with biometric security Custom color themes — personalize syntax highlighting to your taste Try Premium free for 7 days. Cancel anytime. WORKS ON iPhone · iPad · Mac Home screen widget included. Subscription info Premium is available as a monthly or annual subscription. Payment is charged to your Apple ID at confirmation. Your subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Account Settings. Any unused portion of a free trial is forfeited upon purchase. Privacy Policy: https://calculo.tech/privacy_policy Terms of Service: https://calculo.tech/terms_of_use

Screenshots

Semonto4 screens
Calculo4 screens

Verdict

The call

The clearest difference is in-app purchases: Semonto at none against Calculo's 3. Semonto also leads on iOS requirement (11.0 vs 26.0). Calculo's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculo sells 3 in-app purchases, starting at $4.99 per month. Semonto asks for nothing beyond the download.

UpkeepUpdate frequency

Semonto ships an update every 3 months, Calculo every 6 weeks. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Semonto versus Calculo: the parameters behind the verdict, then further details
ParameterSemontoCalculo
PriceFreeFree
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS11.0 — better26.0
Further details — not scored
Size31 MB16 MB
Age rating4+4+
DeveloperCoding MammothIllia Senchukov

In-app purchases

None

Semonto

No in-app purchases

3 purchases

Calculo

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly14 Days trial$29.991 Year
One-time1
  • Premium Lifetime$69.99

Questions

Is Semonto free?
Semonto is free to download, with no in-app purchases.
Is Calculo free?
Calculo is free to download, with in-app purchases available.
Do Semonto or Calculo have ads?
Neither Semonto nor Calculo shows ads.
Which is updated more often, Semonto or Calculo?
Semonto ships an update every 3 months, and Calculo every 6 weeks. Most recently, Semonto was updated on October 11, 2026 and Calculo on October 25, 2026.

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