Spur Gear Calculator vs Flash Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spur Gear Calculator
Calculate essential dimensions for spur gears and pinions using diametral pitch or module. This tool provides outside diameter, center distance, and ratio for specific gear types.
- Calculate Outside Diameter
- Calculate Centre Distance
- Calculate Ratio
- Supports Diametral Pitch
- Supports Module
- Spur gear and pinion specific
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This is a specialised set calculators that uses the gear systems (Diametral Pitch or Module) and the number of teeth to calculate the Outside Diameter, Centre Distance and Ratio of Spur gears and pinions. Please note that these calculators should ONLY be used for spur gears and pinons, NOT for Helical gears.
Flash Studio
Manage your 3D printers remotely from your smartphone. Monitor print status, view live video feeds of your printer's operations, and control multiple printers simultaneously.
- Remote printer monitoring
- Real-time video feed
- Manage grouped printers
- On-the-go management
- Smartphone integration
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Flash Studio is an integrated mobile app developed by FLASHFORGE for on-the-go management of 3D printers. Users can monitor print status via smartphones, view real-time video of printer operations remotely, and efficiently manage grouped 3D printers.
Screenshots
Verdict
The clearest difference is rating: Flash Studio at 4.8 against Spur Gear Calculator's 3.7. Flash Studio also leads on update cadence (fortnightly vs every 12 months) and ratings volume (5.5K vs 3). Spur Gear Calculator's advantage is review sentiment (100% vs 58%) and ads (none vs shown). On price, 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.
Flash Studio holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Flash Studio has 5.5K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Spur Gear Calculator's written reviews are positive against 58% of Flash Studio's, so the app with the better star average is not the one people write more warmly about.
Spur Gear Calculator ships an update every 12 months, Flash Studio fortnightly. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Spur Gear Calculator | Flash Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 4.8 (5.5K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 58.4% of reviews |
| Number of ratings | 3 | 5.5K — better |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | SpiralArm Consulting Limited | 浙江闪铸三维科技有限公司 |
Customer experience
Spur Gear Calculator
Flash Studio
In-app purchases
Spur Gear Calculator
No in-app purchases
Flash Studio
No in-app purchases
Questions
Is Spur Gear Calculator free?
Is Flash Studio free?
Which has better reviews, Spur Gear Calculator or Flash Studio?
Do Spur Gear Calculator or Flash Studio have ads?
Which is updated more often, Spur Gear Calculator or Flash Studio?
Other comparisons
