Optimal° vs Flash Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optimal°
This app provides remote control and monitoring for a specific brand of tankless water heaters. Users can adjust temperature, track performance metrics, and receive diagnostic information for efficient hot water management.
- Set water heater output temperature
- Monitor unit activity state
- Track flow rate and energy consumption
- View inlet and outlet water temperatures
- Access diagnostics and error codes
- Enable Vacation Mode
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Control and Monitor your Optimal Opti Tankless Water Heater with the Optimal° connected app. Optimal° app allows you to control temperature, monitor performance and unit diagnostics, giving you full control of our hot water services. Optimal's patent pending ultrasonic flow sensors allow you to add your water heater to your smart home intelligence. Optimal° allows you to precisely customize how hot water is delivered to your faucets. Save money, be efficient and that's Optimal. Current App Version functionality. - Set water heater output temperature - Unit activity state (heating / not heating) - Gallons / min flow rate - Kilowatts per hour rate - Inlet Water Temperature - Outlet Water Temperature - Input Voltage - Available Flow Rate - Heater Capacity - Vacation Mode - Diagnostics / Error Code Reporting
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 Optimal°'s 3.9. Flash Studio also leads on update cadence (fortnightly vs every 5 months) and ratings volume (5.7K vs 9). Optimal°'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, 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 3.9. That said, the two scores are not equally well evidenced: Flash Studio has 5.7K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 60% of Optimal°'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.
Optimal° ships an update every 5 months, Flash Studio fortnightly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | Optimal° | Flash Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (9 ratings) | 4.8 (5.7K ratings) — better |
| Positive reviews | 60.0% of reviews — better | 58.4% of reviews |
| Number of ratings | 9 | 5.7K — better |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 100 MB |
| Age rating | 17+ | 4+ |
| Developer | Its Optimal LLC | 浙江闪铸三维科技有限公司 |
Customer experience
Optimal°
Flash Studio
In-app purchases
Optimal°
No in-app purchases
Flash Studio
No in-app purchases
Questions
Is Optimal° free?
Is Flash Studio free?
Which has better reviews, Optimal° or Flash Studio?
Do Optimal° or Flash Studio have ads?
Which is updated more often, Optimal° or Flash Studio?
Other comparisons
