Conversion! vs ZiiLock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Conversion!
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Unit Converter – Fast, Accurate and Easy to Use Unit Converter is the perfect companion for quickly and accurately converting a wide variety of units. Whether you're at home, at work, in school, at university, or on the go, the app provides reliable results with an intuitive and easy-to-use interface. Features • Fast and precise unit conversions • Clean and intuitive user interface • Instant calculations while typing • Wide range of conversion categories • High calculation accuracy • Perfect for everyday use, education, engineering and professional work • Optimized for both iPhone and iPad • Simple, fast and efficient operation Available Categories Depending on the version, the app includes many conversion categories such as: • Length • Area • Volume • Weight • Speed • Temperature • Pressure • Energy • Power • Time • Angle • Digital Storage • Force • Density • Frequency • Currency and many more. Whether you need a quick conversion for everyday life or accurate engineering calculations, Unit Converter gives you reliable results in seconds.
ZiiLock
This innovative bike lock offers a foldable and proactive security solution for your bicycle. It aims to provide advanced protection against theft. The app is designed to work with the physical lock to enhance its functionality.
- Foldable design
- Proactive security features
- App integration
- Bike lock functionality
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The first foldable & proactive bike lock
Screenshots
Verdict
The clearest difference is update cadence: ZiiLock at every 5 months against Conversion!'s every 20 months. ZiiLock also leads on iOS requirement (10.0 vs 26.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Conversion! ships an update every 20 months, ZiiLock every 5 months. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.
| Parameter | Conversion! | ZiiLock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.4 (9 ratings) — better |
| Positive reviews | — | 27.3% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 20 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Gerhard Lentschik | yu sun |
In-app purchases
Conversion!
No in-app purchases
ZiiLock
No in-app purchases
Questions
Is Conversion! free?
Is ZiiLock free?
Do Conversion! or ZiiLock have ads?
Which is updated more often, Conversion! or ZiiLock?
Other comparisons
