Comparison

WillOS vs CalcKey

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

Head to head
About

WillOS

This productivity tool helps users organize their time and prioritize tasks. It offers features to stay aware of time, focus on high-value activities, and manage tasks across multiple devices.

Highlights
  • Time awareness
  • Task prioritization
  • Cross-device task management
  • Organized time management
Features
Read full description

For J-types, P-types who want to be more J-like, or anyone who wants their time management to be well-organized. This tool can give you a hand and help you get your act together. · Stay aware of time at all times · Constantly remind yourself to prioritize high-value tasks · Want to view your tasks across multiple devices anytime, anywhere

About

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.

Highlights
  • Keyboard calculator extension
  • Real-time results
  • Basic & scientific calculators
  • Calculation history
  • Smart formatting
  • Standalone app option
Features
Read full description

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

Screenshots

WillOS4 screens
CalcKey4 screens

Verdict

The call

The clearest difference is review sentiment: WillOS at 100% against CalcKey's 0%. CalcKey's advantage is price (Free vs $3.99). On update cadence, ads, in-app purchases 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

CalcKey is free to download; WillOS costs $3.99 up front. WillOS sells 5 one-off in-app purchases and CalcKey sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WillOS ships an update every 2 weeks, CalcKey every 3 weeks. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
WillOS versus CalcKey: the parameters behind the verdict, then further details
ParameterWillOSCalcKey
Price$3.99Free — better
Rating—3.8 (8 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015
Further details — not scored
Size6 MB14 MB
Age rating4+4+
Developer艺景 张Right Tracks IT Limited

Customer experience

WillOS

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CalcKey

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

5 purchases

WillOS

One-time5
  • Wishing Well (人・ω・。)2 variants$0.99
  • Fuel me (//ω//)2 variants$2.99
  • Feed me (//ω//)$4.99
Show 2 more
  • PRO$6.99
  • Feed me (//ω//)$6.99
2 purchases

CalcKey

Subscriptions1
  • CalcKey Pro Monthly3 Days trial$3.991 Month
One-time1
  • One time purchase$19.99

Questions

Is WillOS free?
WillOS costs $3.99, and also offers in-app purchases.
Is CalcKey free?
CalcKey is free to download, with in-app purchases available.
Do WillOS or CalcKey have ads?
Neither WillOS nor CalcKey shows ads.
Which is updated more often, WillOS or CalcKey?
WillOS ships an update every 2 weeks, and CalcKey every 3 weeks. Most recently, WillOS was updated on October 9, 2026 and CalcKey on October 13, 2026.

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