UltiCloud vs Fill Storage Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UltiCloud
This platform integrates PV, battery storage, EV charging, and heat pump control into a single AI-powered hub. Monitor energy flow, optimize efficiency, and adjust production and consumption with real-time visualization and intelligent automation. Make smarter energy decisions with natural language interaction and predictive insights.
- Integrated PV, battery, EV charging, and heat pump control
- Real-time energy flow visualization
- Configurable operation modes (self-consumption, TOU, etc.)
- AI-driven automation and optimization
- Natural language device interaction
- Predictive energy generation and weather insights
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UltiCloud – Your AI-Powered Smart Energy Hub UltiCloud is a cloud-based smart energy management platform integrating PV, battery storage, EV charging, and heat pump control — all within one app. It allows users to monitor inverter parameters, optimize energy efficiency, and adjust every watt of production and consumption through dashboards. With real-time energy flow visualization, users gain full visibility into PV output, grid exchange, battery SOC, EV charging, and heat pump performance. The system supports a range of configurable operation modes — including self-consumption, time-of-use (TOU) mode, feed-in limitation, and EV priority charging — enabling users to maximize energy value. These modes can be set manually or automated via AI, dynamically adapting to usage patterns, tariff structures, and environmental factors. Powered by an intellectual AI engine, UltiCloud offers natural-language interaction for device queries, remote control, and predictive insights into energy generation and weather — enabling smarter, data-driven decisions. UltiCloud puts you in command of your entire home energy ecosystem — intelligently, efficiently, and seamlessly connected.
Fill Storage Pro
This utility app helps users simulate low storage conditions for testing or securely erase deleted data by filling device storage with dummy files. It offers customizable filling options and easy cleanup.
- Low storage simulation for testing
- Securely overwrite deleted data
- Customizable storage filling (fixed sizes/percentage)
- One-tap cleanup of generated files
- Ideal for developers and testers
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Fill Storage Pro is a must-have tool for iOS developers, testers, and users who need to simulate low storage conditions or securely erase deleted data. Key Features: ■ Low Storage Simulation for Testing ‣ Ideal for developers and testers to check how apps behave when storage is almost full. ■ Secure Data Erasure ‣ Fills storage with dummy files to overwrite deleted data, preventing recovery. ■ Customizable Storage Filling ‣ Fixed Sizes: 100MB, 1GB, 5GB ‣ Percentage-Based: 30%, 60%, 90% ■ Easy Cleanup ‣ All generated files can be deleted instantly with a single tap. Who Can Benefit? ‣ iOS Developers & Testers – Ensure apps function properly in low-storage conditions. ‣ Privacy-Conscious Users – Prevent deleted data from being recovered. ‣ Anyone Needing Storage Control – Experiment with storage management easily. Whether you're testing app performance or securely erasing data, Fill Storage Pro provides a simple and effective solution. Download now and take control of your storage!
Screenshots
Verdict
The clearest difference is ads: UltiCloud at none against Fill Storage Pro's shown. UltiCloud also leads on update cadence (every 5 days vs every 2 months) and monetization model (free vs ad-supported). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for UltiCloud against 5.0 for Fill Storage Pro. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
UltiCloud ships an update every 5 days, Fill Storage Pro every 2 months. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.
| Parameter | UltiCloud | Fill Storage Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 118 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Shen zhen ACE Battery Co,Ltd | Arum Communications Corp. |
Customer experience
UltiCloud
Fill Storage Pro
In-app purchases
UltiCloud
No in-app purchases
Fill Storage Pro
No in-app purchases









