CalcKey vs ArcFocus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalcKey
Perform calculations directly within any app using a smart keyboard extension. Get instant results for basic and scientific equations, with a history of your calculations. Enjoy a seamless typing experience and smart formatting.
- Keyboard calculator extension
- Real-time results
- Basic & scientific calculators
- Calculation history
- Smart formatting
- Standalone app option
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CalcKey – Smart Calculator Keyboard Calculate Instantly. Anywhere. Anytime. No more switching between apps just to do quick math! With CalcKey, you get a powerful calculator app and an intelligent keyboard extension — so you can calculate right inside Messages, Notes, Mail, or any app without ever leaving your screen. Key Features: - Keyboard Calculator Extension – Instantly calculate while chatting or typing. Works in Messages, WhatsApp, Notes, and more! - Real-Time Results – Get instant answers as you type. - Basic & Scientific Calculators – From quick sums to advanced equations, CalcKey does it all. - Calculation History – View, copy, or reuse past results easily. - Haptic Feedback – Enjoy subtle vibrations for a smooth typing experience. - Smart Formatting – Supports decimals, thousands separators, and clear result display. - Works Everywhere – Use it as a standalone app or directly from your keyboard. Perfect for messaging apps! Reply, calculate, and chat — all without leaving the conversation. CalcKey makes multitasking effortless. Subscription Pricing, Policy & Terms: - Monthly Plan - $3.99/per month - LifeTime Access - $19.99/One time charge - Subscription automatically renews unless auto-renew is turned off at least 24 - hours before the end of the current period. - Payment will be charged to iTunes Account at confirmation of purchase. - Account will be charged for renewal within 24-hours prior to the end of the current period. - No cancellation of the current subscription is allowed during the active subscription period. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - Any unused portion of a free trial period will be forfeited when the user purchases a subscription. Terms & Condition: https://www.righttracksit.com/calckey/terms Privacy Policy: https://www.righttracksit.com/calckey/privacy-policy
ArcFocus
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ArcFocus is a clean, distraction-free focus timer combined with task planning and routine tracking. Build streaks, keep the screen awake while you work, and log progress with lightweight stats—all kept securely on your device. - Focus timer with immersive mode and routine reminders - Plan tasks and events together; track recurring routines - Local notifications; no cloud sync, no ads - Quick backups to JSON you control - Optional Lifetime Premium: unlimited routines, custom themes, deeper focus modes Support: tripflow.contact@gmail.com Privacy Policy: https://www.notion.so/ArcFocus-App-Page-2b3f5511043f803e83c1c0086986b80d
Screenshots
Verdict
CalcKey and ArcFocus are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. CalcKey sells 2 in-app purchases, starting at $3.99 per month and ArcFocus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | CalcKey | ArcFocus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (9 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15 | 14.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Right Tracks IT Limited | harim kang |
In-app purchases
CalcKey
- CalcKey Pro Monthly3 Days trial$3.991 Month
- One time purchase$19.99
ArcFocus
- Lifetime Premium Access$2.99








