VF vs ZRLock
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
VF
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Velofox is the advanced application for electric cyclists. It makes your iPhone a powerful fitness computer - with riding data, maps, calories and emisison. The app shows you how much CO2 you save on each trip compared to a car journey.
ZRLock
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Smart lock control solution based on NFC communication, supporting NFC wireless energy harvesting. It enables control of small motor lock bodies without batteries or power adapters.
Screenshots
Verdict
The clearest difference is update cadence: ZRLock at every 11 days against VF's every 11 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
VF ships an update every 11 months, ZRLock every 11 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | VF | ZRLock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 months | Every 11 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details β not scored | ||
| Size | 128 MB | 80 MB |
| Age rating | 17+ | 4+ |
| Developer | Hangzhou VeloFox Intelligent Technology Co., Ltd | xiaoxian hong |
In-app purchases
VF
No in-app purchases
ZRLock
No in-app purchases
