CalKeyboard vs WhenNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalKeyboard
This keyboard app integrates a calculator directly into your typing experience. Perform calculations without leaving your current application. It's designed for quick math needs while messaging or working.
- Integrated calculator
- Type and calculate simultaneously
- Seamless integration
- Quick calculations
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No more explanation It's a keyboard with calculator should be created already keyboard!
WhenNote
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WhenNote keeps important dates clear and easy to revisit. Organize meaningful events in flexible notebooks, understand how much time has passed or remains, and handle everyday date calculations in one focused app. Features: - Organize dates into separate notebooks - Record names, descriptions, start dates, and end dates - See elapsed, upcoming, and remaining time at a glance - Calculate and total date intervals - Add or subtract days, hours, and minutes - Reorder notebooks and entries to match your workflow - Optionally back up and restore through your private Google Drive app-data area - Use the app in English, Traditional Chinese, Simplified Chinese, or Japanese Your notes are stored on your device by default. When Google Drive backup is enabled, WhenNote requests access only to its own hidden app-data area—not your other Drive files. No ads. No tracking. No unnecessary account required.
Screenshots
Verdict
The clearest difference is in-app purchases: WhenNote at none against CalKeyboard's 1. WhenNote also leads on update cadence (fortnightly vs every 8 months). 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. CalKeyboard sells 1 one-off in-app purchase. WhenNote asks for nothing beyond the download.
CalKeyboard ships an update every 8 months, WhenNote fortnightly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.
| Parameter | CalKeyboard | WhenNote |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 8 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | FebesGoods Studio | Hank Wang |
In-app purchases
CalKeyboard
- Full Version$0.99
WhenNote
No in-app purchases
