Comparison

Multi Calculator vs Parallel

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

Head to head
About

Multi Calculator

Features
Read full description

[Overview] Multi Calculator is the ultimate calculation tool for your everyday needs. Featuring a clean, intuitive design and a wide range of specialized calculators, it helps you solve complex math, financial, and unit conversion problems in seconds. [Key Features] • Standard Calculator: Simple yet powerful with history records and math operators. • Currency Converter: Real-time exchange rates with offline mode support. • Percent Calculator: Quickly calculate percentage increases, decreases, and ratios. • Shopping Calculator: Find the best deals by calculating discounts, unit prices, and final costs while you shop. • Time Calculator: Easily add or subtract time durations and calculate intervals between two dates. • Tip & Split Bill: Perfect for dining out! Calculate tips and split the bill among friends instantly. • Unit Converter: Supports Length, Weight, Volume, Temperature, Speed, and more. • Interest & Loan: Simple and compound interest, plus mortgage repayment plans. • Fuel & Anniversary: Track fuel economy and manage your important D-Day counters. [Why Choose Multi Calculator?] • Intuitive and user-friendly interface. • Lightweight and fast performance. • Essential tools for travelers, students, and professionals alike. - Privacy Policy: https://www.lemonclip.com/app/privacy/privacy-policy-en.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Parallel

Perform multiple calculations simultaneously with a drag-and-drop interface. Features a scientific calculator, currency and crypto converter, and history saving with optional privacy locks. Customize with themes and fonts.

Highlights
  • Run 2, 3, or 4 calculations side-by-side
  • Drag and drop calculation arrangement
  • Scientific calculator mode
  • Currency and crypto converter
  • Save calculation history with notes
  • Face ID/passcode lock for privacy
  • Home screen widget and Quick Menu access
Features
Read full description

Parallel. Calculate more. DO MORE AT ONCE Why calculate one thing at a time? Run 2, 3, or 4 calculations side by side, and arrange them however you like with drag and drop. No more memorizing one result just to punch it into the next — it's all already on screen. That's the whole idea behind the name. ONLY WHAT YOU NEED No bloat, no clutter. Scientific mode covers exactly what you'd expect from a real scientific calculator — nothing more, nothing less. The converter covers 57 world currencies plus Bitcoin, Ethereum, and a handful of other crypto. Simple, on purpose. YOUR HISTORY, YOUR CALL Parallel only saves what you choose to keep — each calculation with your own note attached, kept separate for standard and scientific mode. Share any result straight from history, wherever you need it. Prefer to keep it private? Lock it all behind Face ID or your passcode. MADE TO FEEL RIGHT Swipe between calculator, scientific mode, and converter. Feel every tap with haptic feedback. Add a widget to your Home Screen, or pull it up instantly from Quick Menu. MAKE IT YOURS Free with the Classic theme. Unlock 10 named themes, a set of distinctive fonts, and the 4-screen layout with Parallel Pro — a one-time purchase, no subscription, ever. Your calculator has never looked this good. No ads. No data collected. Available in 34 languages.

Screenshots

Multi Calculator4 screens
Parallel4 screens

Verdict

The call

The clearest difference is in-app purchases: Parallel at none against Multi Calculator's 3. Parallel also leads on ads (none vs shown) and update cadence (every 6 days vs every 4 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Multi Calculator sells 3 in-app purchases, starting at $0.99 per month. Parallel asks for nothing beyond the download.

UpkeepUpdate frequency

Multi Calculator ships an update every 4 months, Parallel every 6 days. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Multi Calculator versus Parallel: the parameters behind the verdict, then further details
ParameterMulti CalculatorParallel
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.6 — better18.0
Further details — not scored
Size11 MB16 MB
Age rating4+4+
DeveloperLemonClipEvgenii Chizhov

In-app purchases

3 purchases

Multi Calculator

Subscriptions2
  • Monthly7 Days trial$0.991 Month
  • Annual7 Days trial$4.991 Year
One-time1
  • Lifetime$9.99
None

Parallel

No in-app purchases

Questions

Is Multi Calculator free?
Multi Calculator is free to download, with in-app purchases available.
Is Parallel free?
Parallel is free to download, with no in-app purchases.
Do Multi Calculator or Parallel have ads?
Multi Calculator shows ads; Parallel does not.
Which is updated more often, Multi Calculator or Parallel?
Multi Calculator ships an update every 4 months, and Parallel every 6 days. Most recently, Multi Calculator was updated on October 12, 2026 and Parallel on October 10, 2026.

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