Essential Calculator vs 1 Contact
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Essential Calculator
Perform basic mathematical calculations with a clean, minimalist interface. Get instant results for your equations on your iPhone or iPod touch.
- Basic mathematical equations
- Instant results
- Minimalist interface
- iPhone and iPod touch support
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Easily enter basic mathematical equations and instantly view the results on your iPhone or iPod touch with this simple, minimalist calculator app.
1 Contact
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1 CONTACT - A SMART BUSINESS MANAGEMENT SOLUTION FOR ENTERPRISES 1 Contact is an all-in-one business management solution designed to streamline sales operations, customer engagement, and business management. With an intuitive interface and powerful features, 1 Contact helps businesses improve productivity and manage customer relationships more efficiently. With 1 Contact, you can: 1. MANAGE MULTI-CHANNEL COMMUNICATION IN ONE PLACE • Manage multiple communication channels from a single interface. • Synchronize and view customer interaction history across voice calls, SMS, Facebook, Zalo OA, and other supported channels in one conversation. • Chat, make calls, add notes, and update customer information without switching between applications. 2. CENTRALIZE CUSTOMER MANAGEMENT • Store and organize customer data based on your business needs. • Track customer interactions and purchase history in one place. • Improve customer care and optimize the customer journey. 3. ACCESS DETAILED BUSINESS REPORTS • Generate reports with flexible filters tailored to your business needs. • Monitor customer activities, calls, and messages through comprehensive analytics. • Automatically evaluate and rank team performance. DOWNLOAD 1 CONTACT TODAY AND EXPERIENCE A SMART BUSINESS MANAGEMENT SOLUTION THAT HELPS YOUR BUSINESS IMPROVE PRODUCTIVITY, STRENGTHEN CUSTOMER RELATIONSHIPS, AND DRIVE SUSTAINABLE GROWTH.
Screenshots
Verdict
The clearest difference is iOS requirement: Essential Calculator at 12.4 against 1 Contact's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Essential Calculator ships an update every 4 months, 1 Contact every 3 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | Essential Calculator | 1 Contact |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (8 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 98 MB |
| Age rating | 4+ | 4+ |
| Developer | CyberMoai | Gadget Technology Solution |
In-app purchases
Essential Calculator
No in-app purchases
1 Contact
No in-app purchases









