Unit Converter vs Keypop
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Unit Converter
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This is an efficient tool app that integrates a professional calculator with multi-unit conversion functionality. Supports complex expression calculations and multiple categories of physical unit conversions, meeting various calculation needs in study, work, and daily life. γCore Feature Highlightsγ Powerful Expression Calculation Engine οΏ Supports complex mathematical operations (e.g., 2.5 Γ 3.8 + 1.2 Γ· 0.4) οΏ Scientific notation display οΏ Real-time calculation result preview οΏ Customizable decimal precision Comprehensive Unit Conversion Support οΏ Length, Mass, Time, Current, Temperature, Acceleration, Area, Charge, Force, Frequency, Plane Angle, Solid Angle, Speed, Volume User-Friendly Experience οΏ Save frequently used unit pairs for quick access οΏ Switch freely between dark and light themes οΏ Simple and intuitive interface Smart Conversion Experience οΏ One-tap unit swap function οΏ Copy calculation results and full formulas
Keypop
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Keypop is a real keyboard with keycap themes you can type with anywhere β messages, notes, search bars. β’ Make your own in a few steps β start from a concept (designed keycaps, designed keyboard or custom), then pick shape, color, outline, background and sound. β’ Designed keycaps β one photo spread across every key, or clear keys over a photo background. β’ Shapes β square, rounded, round, hearts, clouds and flowers. Set width and height freely. β’ Outlines & depth β gold, rainbow, candy or double lines for keys and the board. β’ Typing sounds & haptics β crisp clicks, deep thocks, bubbly pops. β’ Market β browse keyboards others made, heart your favorites and apply them. β’ Your languages β choose up to three of 29 languages and switch with one key. Hold a letter for accents. β’ A little dino buddy that walks along as you type. β’ Private by design β the keyboard never stores or sends what you type and has no ads or network code. No login. Keypop Plus (monthly, yearly or lifetime) gives you more keyboard slots, unlimited favorites and no ads. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage them in your account's subscription settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://loungees.net/keycapboard/privacy
Screenshots
Verdict
The clearest difference is ads: Unit Converter at none against Keypop's shown. Unit Converter also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). Keypop's advantage is update cadence (daily vs every 2 weeks). On price and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Unit Converter sells 1 one-off in-app purchase and Keypop sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Unit Converter ships an update every 2 weeks, Keypop daily. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.
| Parameter | Unit Converter | Keypop |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Daily β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 12.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 29 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | δΌιΉ ζ | DAE HYUN KIM |
In-app purchases
Unit Converter
- Unlock Premium Membership$0.99
Keypop
- Keypop Plus Monthly$1.991 Month
- Keypop Plus Yearly$11.991 Year
- Keypop Plus Lifetime$19.99
Questions
Is Unit Converter free?
Is Keypop free?
Do Unit Converter or Keypop have ads?
Which is updated more often, Unit Converter or Keypop?
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