Units vs Cat Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units
Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.
- Extensive unit conversions
- Multiple currency support
- Easy and clear handling
- Converts length, mass, volume
- Supports speed, area, pressure
- Converts time and temperature
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Unit converter with many different units of measurement and currencies. Very easy handling. Clearly arranged. The most important units are amongst others: - Currencies: United States dollar, Euro, Japanese yen, Pound sterling - Length: Mile, kilometer, meter, inch - Mass: Kilogram, pound, ounce, gram - Volume: Liter, gallon (several) - Speed - Area - Units of information - Pressure - Power - Time - Temperature Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cat Keyboard
This app allows you to quickly input saved text snippets from your iPhone keyboard or Apple Watch. You can also display or speak text aloud on your Apple Watch, keeping your phrases organized in folders.
- One-tap text input
- Save frequently used phrases
- Organize phrases with folders
- Display text on Apple Watch
- Read text aloud on Apple Watch
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Quickly input frequently used text directly from your keyboard or Apple Watch. You can also display text on your Apple Watch or have it read aloud through the speaker. 【Key Features】 ・Easy Text Input Save frequently used sentences and phrases to input them with just one tap from your keyboard or Apple Watch. ・Organize with Folders Keep your phrases tidy by organizing them into folders, making it easy to find exactly what you need even as your collection grows. ・Apple Watch Integration View text directly on your Apple Watch or play it back as audio through the speaker. Terms of Use: https://wordouen.sakura.ne.jp/KeyHolderKeyboard/terms.html Privacy Policy: https://wordouen.sakura.ne.jp/KeyHolderKeyboard/privacy.html
Screenshots
Verdict
The clearest difference is review sentiment: Cat Keyboard at 83% against Units's 45%. Cat Keyboard also leads on update cadence (fortnightly vs every 5 weeks). Units's advantage is ratings volume (261 vs 9) and rating (4.9 vs 4.7). On price, ads, in-app purchases and monetization model 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. Units sells 3 in-app purchases, starting at $0.99 per month and Cat Keyboard sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Units holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Units has 261 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 45% of Units's written reviews are positive against 83% of Cat Keyboard's, so the app with the better star average is not the one people write more warmly about.
Units ships an update every 5 weeks, Cat Keyboard fortnightly. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.
| Parameter | Units | Cat Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (261 ratings) — better | 4.7 (9 ratings) |
| Positive reviews | 45.5% of reviews | 83.3% of reviews — better |
| Number of ratings | 261 — better | 9 |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 106 MB |
| Age rating | 4+ | 12+ |
| Developer | Andreas Maier | kimihiro kubota |
Customer experience
Units
Cat Keyboard
In-app purchases
Units
- Monthly7 Days trial$0.991 Month
- Yearly7 Days trial$4.991 Year
- One time purchase$9.99
Cat Keyboard
- Premium (1 Month)7 Days trial$2.991 Month
- Premium (3 Month)7 Days trial$7.993 Months
- Premium (12 Month)7 Days trial$19.991 Year
- Cat Pro$24.99
