i vs 3Dcalc+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
Control your four-axis aircraft remotely using your iOS device. Stream real-time video from the aircraft's camera and capture photos or videos directly to your phone or tablet.
- Remote aircraft control
- Real-time video streaming
- Photo capture
- Video recording
- WiFi protocol integration
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This is a APP for the four axis aircraft control via WiFi protocol This APP function: 1.Remote control the four axis aircraft by the IOS machine(iPhone/iPad/iPod). 2.Display the real-time video which taken by the camera on the aircraft,video data transmitted via 2.4G WiFi protocol. 3.Take the photo and video record on the IOS machine(iPhone/iPad/iPod).
3Dcalc+
This app helps makers, designers, and 3D printing businesses accurately calculate project costs. It considers materials, print time, and power consumption to provide clear quotes, saving time and avoiding surprises in estimates.
- Calculate project costs
- Consider materials
- Estimate print time
- Factor in power consumption
- Generate clear quotes
- Track expenses
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3DCalc+ is the essential tool for makers, designers, and 3D printing businesses. Quickly and accurately calculate the real cost of your projects, considering materials, print time, and power consumption. No more guessing how much a part costs to print — with 3DCalc+, you’ll have a clear quote before you start. Who is 3DCalc+ for? • Makers printing at home who want to track expenses. • Freelancers and 3D designers preparing quotes for clients. • 3D printing businesses that need transparency and speed in their costs. With 3DCalc+, you’ll have full control of your expenses, save time, and avoid surprises in your estimates. Download it now and manage your 3D business more easily.
Screenshots
Verdict
The clearest difference is review sentiment: 3Dcalc+ at 100% against i's 50%. 3Dcalc+ also leads on rating (5.0 vs 3.0) and update cadence (weekly vs every 6 months). i's advantage is price (Free vs $4.99) and iOS requirement (7.1 vs 17.6). On 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
i is free to download; 3Dcalc+ costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
3Dcalc+ holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 50% of i's written reviews are positive against 100% of 3Dcalc+'s.
i ships an update every 6 months, 3Dcalc+ weekly. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.
| Parameter | i | 3Dcalc+ |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 3.0 (2 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 7.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 23 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 永忠 林 | Juan Jose Coll Garcia |
Customer experience
i
3Dcalc+
In-app purchases
i
No in-app purchases
3Dcalc+
No in-app purchases
