Multi Calculator vs Parallel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Multi Calculator
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[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/
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.
- 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
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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
Verdict
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
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.
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.
| Parameter | Multi Calculator | Parallel |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 11 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | LemonClip | Evgenii Chizhov |
In-app purchases
Multi Calculator
- Monthly7 Days trial$0.991 Month
- Annual7 Days trial$4.991 Year
- Lifetime$9.99
Parallel
No in-app purchases








