Smart EVbox vs Ringbox
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Smart EVbox
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You can easily manage and use compatible EV charging devices through your mobile phone. With Smart EVbox, you can conveniently connect to compatible electric vehicle charging stations through your mobile phone, monitor real-time charging status, and remotely control charging sessions. Smart EVbox provides four basic charging modes and an ECO intelligent charging mode designed to help reduce charging costs, supporting a variety of daily needs and charging scenarios. The app also records charging history and electricity consumption, making it easy to review and manage your charging activity.
Ringbox
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Find your ring size on your screen โ no guessing, no printing, no trip to a jeweler. Ringbox turns your iPhone into a true-to-scale ring sizer. Lay a ring you already own flat on the display, match the circle to it, and read your size in every system used worldwide. It takes about ten seconds. THREE WAYS TO MEASURE โข Ring on screen โ the most accurate. Size the circle to the ring's inner edge. A magnifier follows your finger so you can see the exact moment the edges meet, and a haptic tick marks every quarter size. โข Paper strip โ no ring to hand? Wrap a strip of paper around your finger, mark where it overlaps, and lay it on the true-scale ruler. โข Finger on screen โ a quick estimate when you just want a ballpark. We label it honestly as ยฑ1 size and tell you to confirm with a ring or a strip before you buy. EVERY SIZING SYSTEM US & Canada, UK & Australia, Europe/ISO, Japan & China โ plus inner diameter and circumference, in millimeters and inches. Type a size in any system and the converter shows all the others. The full ring size chart runs US 3 to 16 in half sizes. ACCURATE, AND HONEST ABOUT IT Ringbox knows your exact screen size, so the circle is drawn at real physical scale rather than scaled to a guess. If your model isn't recognized, calibrate in seconds against any bank card. Double-check compares two measurements taken different ways and gives you a confidence badge, with a guided fix when they disagree. Between sizes? It tells you to round up, and why. The fit tips are built in, too: wide bands need a little more room, fingers swell through the day, and the ring has to clear the knuckle. A DRAWER FOR YOUR RINGS โข Save any ring with a name, the person, the hand and the finger โข Add a photo and the background is removed on device โ a clean cut-out of the ring itself โข Group rings by person: you, your partner, your mom, whoever SURPRISE-PROOF Sizing a ring for a proposal? Secret profiles are hidden behind Face ID, so their rings, photos and sizes stay out of sight. A reminder about a secret person never shows a name or a size on your Lock Screen, and secret people are left out of widgets โ a Home Screen isn't private. WIDGETS, REMINDERS, PAPER โข Home Screen widgets: one ring, a grid of your collection, or your size across every system โข Gift reminders for birthdays and anniversaries, with the size right there in the notification โข A printable paper ring sizer (PDF, Letter or A4) with a print-scale check, so you know it came out at 100% โข Share cards showing a size in every system, with the ring's photo PRIVATE BY DEFAULT It all happens on your iPhone. Photos are cut out on device, sizes are stored on device, and nothing needs an account or an internet connection. Available in English, Spanish, French, German, Italian, Portuguese, Chinese and Hebrew. THE DIAMOND PLAN Ringbox requires the Diamond plan. Measure your ring size once during setup, then choose Weekly, Yearly or Lifetime to use the app: all three ways to measure, every sizing system, the chart and converter, unlimited rings and people, photo cut-outs, secret profiles with Face ID, double-check confidence, widgets, gift reminders, the printable sizer and share cards. Lifetime is a one-time purchase. Weekly and Yearly are auto-renewable subscriptions; the first year of Yearly is offered at a lower price, paid up front. Subscriptions renew automatically unless canceled at least 24 hours before the period ends; manage or cancel in your App Store account settings. Prices are shown in the app and vary by region. Privacy Policy: https://veloz.dev/ringsizer-privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Smart EVbox at none against Ringbox's 4. Ringbox's advantage is update cadence (every 2 weeks vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Ringbox sells 4 in-app purchases, starting at $6.99 per 7 days. Smart EVbox asks for nothing beyond the download.
Smart EVbox ships an update every 10 months, Ringbox every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Smart EVbox | Ringbox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 2 weeks โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 96 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Zhongshan AUXUS Electronic Technology Co., Ltd. | Juan Antonio Veloz Gutierrez |
In-app purchases
Smart EVbox
No in-app purchases
Ringbox
- Diamond plan โ Weekly7 Days trial$6.997 Days
- Diamond plan โ Yearly$24.991 Year
- Diamond plan โ Lifetime deal$17.49
- Diamond plan โ Lifetime$39.99









