Colinear vs Calculator Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Colinear
Manage and track your issues natively on mobile. This app links to your Linear workspace, allowing you to monitor ongoing tasks and see what needs to be completed. It offers a streamlined experience for project management on iOS devices.
- Link Linear workspace
- Track ongoing issues
- Monitor roadmap
- Native iOS features
- Project management on mobile
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Manage and track your issues natively using Colinear. Link your Linear workspace in this very easy to use application. Change the way you work on mobile and keep track of all your ongoing issues and see what is still to be completed. Colinear helps you manage your Linear workspace in almost every way the MacOS application does, except this is fine tuned to support all the iOS native capabilities and features. Monitor what is on the roadmap in the app itself as well as leave some feedback on what you would like to see added to this application. Colinear is a project that I decided to work on, as an attempt to make a "to-do" application, however it rather became more apparent to rather use Linear's API to be able to interact with an already existing issue management application. Thanks to the powerful and well documented API from Linear, this app was created to take advantage of their API and make the "to-do" app a reality. Future features that are on the horizon: * Push notifications * Widgets * Apple Watch Support * iPad Support I am the sole developer of the application, so these changes will take time, but your support will be greatly appreciated. Please leave any constructive feedback in the "Workspace" tab of the application, it will be much appreciated! Please note: This app was not created or affiliated with Linear. It was solely created by myself. Privacy Policy: https://sites.google.com/view/colinear-privacy-policy/home Terms of Use: https://sites.google.com/view/colinear-terms-of-use/home
Calculator Keyboard
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Calculate without switching apps. A calculator built right into your keyboard — works everywhere. Split bills, calculate tips, and insert results instantly. Tired of switching apps back and forth? Calkey is a calculator built right into your keyboard. Whether you're in Messages, Notes, Safari, or any other app, you can calculate on the spot—without ever leaving your keyboard. Results insert with a single tap. ■ Perfect for: • Splitting the bill Calculate "125 ÷ 4" right in your group chat and send it instantly. • Shopping abroad Convert currency and paste the result straight into your notes. • Quick calculations No more hunting for the calculator app and switching away from what you're doing. ■ Key Features • Built into your keyboard Access it anytime, anywhere. • One-tap input Tap any result to insert it as text. • Formula input Insert the full equation too. Show your work with formats like "1000 + 500 = 1500." • Customizable Light/Dark mode support and adjustable keyboard height. • Works offline Your calculations stay private—nothing is sent externally. Make your iPhone keyboard smarter. Download Calkey now and experience effortless calculations.
Screenshots
Verdict
The clearest difference is in-app purchases: Colinear at none against Calculator Keyboard's 1. Calculator Keyboard's advantage is update cadence (weekly vs every 3 weeks). On price, ads, 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. Calculator Keyboard sells 1 one-off in-app purchase. Colinear asks for nothing beyond the download.
Colinear ships an update every 3 weeks, Calculator Keyboard weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Colinear | Calculator Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Joe Guedes | Ryunosuke Karimata |
In-app purchases
Colinear
No in-app purchases
Calculator Keyboard
- Pro Upgrade$2.99
Questions
Is Colinear free?
Is Calculator Keyboard free?
Do Colinear or Calculator Keyboard have ads?
Which is updated more often, Colinear or Calculator Keyboard?
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