Comparison

Pocket Drone 3 vs RingMeter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pocket Drone 3

Control a toy quadrocopter using WiFi with real-time video streaming. Compatible with a range of iOS devices and versions.

Highlights
  • WiFi quadrocopter control
  • Real-time video transfer
  • Supports multiple iOS versions
  • Compatible with various iPhone models
Features
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A toy quadrocopter control by wifi with video transfer real time. Support iOS 7 ,iOS 8, iOS 9,iOS 10,iPhone 5 ,iPhone 5c,iPhone 5s, iPhone 6, iPhone 6 plus, iPhone 6s, iPhone 6s plus, iPhone 7, iPhone 7 plus

About

RingMeter

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For online jewelry shoppers who need to know their exact ring size before buying. For partners planning to propose who want to measure secretly without asking. For people sorting through inherited or estate jewelry who need to know which ring fits whom. For wide wedding band buyers who need a more accurate fit than standard sizers can give. RingMeter is the ring sizer that just works. → Place any ring flat on the screen and align the on-screen circle to its inner edge to read the exact size → Get instant readings in 14 country standards — US, UK, EU, Japan, China, Australia, India, Canada, Mexico, Italy, Spain, Germany, Russia, Hong Kong, and Brazil — at the same time → Wide band? Enter the band width in millimeters and the app applies comfort-fit compensation automatically, so wedding bands and signet rings fit right → Measure your finger directly with the on-screen ruler when no reference ring is available → Save sizes for everyone — partner, parents, siblings, friends — and never guess again when buying gifts → Track every ring you own in a private inventory: diameter, finger fit, optional reference photo, and personal notes. Perfect for organizing estate jewelry, coordinating surprise gifts, or running a small jewelry business → Export a printable PDF paper sizer with reference circles and a measuring strip, for situations where the phone screen can't be used or to mail an exact size to a jeweler → Calibrate accuracy with a credit card or coin using the international ISO/IEC 7810 standard → No system permissions required. No camera, no microphone, no location, no contacts. → No account. No login. No data ever leaves your iPhone. → No advertisements. No third-party SDKs. No analytics. → Long press a profile to edit, swipe to delete, tap + to add a new family member or ring → Switch between diameter and circumference display modes anytime → Choose your default sizing standard so the size you care about always shows first → Re-calibrate the screen anytime if you switch devices or display zoom settings Built for iOS 17. 100% offline. No data collection. No ads. 3-day free trial included. Terms of Use: https://taxlite.net/ring_meter/terms.html Privacy Policy: https://taxlite.net/ring_meter/privacy.html

Screenshots

Pocket Drone 32 screens
RingMeter4 screens

Verdict

The call

The clearest difference is in-app purchases: Pocket Drone 3 at none against RingMeter's 4. Pocket Drone 3 also leads on iOS requirement (7.0 vs 17.0). RingMeter's advantage is update cadence (every 10 days vs every 5 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RingMeter sells 4 in-app purchases, starting at $1.99 per 7 days. Pocket Drone 3 asks for nothing beyond the download.

UpkeepUpdate frequency

Pocket Drone 3 ships an update every 5 months, RingMeter every 10 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 6 level
Pocket Drone 3 versus RingMeter: the parameters behind the verdict, then further details
ParameterPocket Drone 3RingMeter
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS7.0 — better17.0
Further details — not scored
Size44 MB2 MB
Age rating4+4+
DeveloperShanTou City Vison Electronictechnology Co., Ltd.ZHENGQIAO JIANG

In-app purchases

None

Pocket Drone 3

No in-app purchases

4 purchases

RingMeter

Subscriptions3
  • Weekly3 Days trial$1.997 Days
  • Monthly$4.991 Month
  • Yearly$29.991 Year
One-time1
  • Lifetime$79.99

Questions

Is Pocket Drone 3 free?
Pocket Drone 3 is free to download, with no in-app purchases.
Is RingMeter free?
RingMeter is free to download, with in-app purchases available.
Do Pocket Drone 3 or RingMeter have ads?
Neither Pocket Drone 3 nor RingMeter shows ads.
Which is updated more often, Pocket Drone 3 or RingMeter?
Pocket Drone 3 ships an update every 5 months, and RingMeter every 10 days. Most recently, Pocket Drone 3 was updated on October 18, 2026 and RingMeter on October 25, 2026.

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