E vs Foundry Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
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E-FREE is an intelligent electric scooter app. The APP communicates with the balance car via Bluetooth. The APP can view vehicle details, set vehicle parameters, and detect new firmware versions of the vehicle for firmware upgrades.
Foundry Control
This app allows you to wirelessly control and fine-tune your subwoofer from your smartphone. Adjust core settings, access advanced tools like delay alignment and room EQ, and manage multiple presets for different listening experiences.
- Bluetooth subwoofer control
- Delay alignment
- Automatic Room EQ
- Manual parametric EQ
- Multiple presets
- Multi-sub management
- System diagnostics
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About this app The PS Audio app makes it easy to control and fine-tune your Foundry F12 subwoofer from your iPhone—right from your listening seat. Connect over Bluetooth, select your subwoofer, and adjust core settings in seconds. When you’re ready to go deeper, the app unlocks advanced tools like delay alignment and room EQ, including automatic Room EQ for single-sub systems and manual parametric EQ for advanced users and multi-sub setups. Whether you’re dialing in a clean crossover blend, time-aligning multiple subs, or taming room peaks, the PS Audio app gives you intuitive control with clear, practical workflows. Key features Optimize your Foundry subwoofer system with: Power control (turn the subwoofer on/off) Level control (quick output adjustments from the couch) Low-pass filter (20–250 Hz) plus “Flat” bypass toggle to defeat the sub’s crossover Delay alignment (0–40 ms) for multi-sub timing and integration with main speakers Phase control (0–180° in 10° steps) Room EQ tools Automatic Room EQ (single-sub installations) Manual EQ with parametric filters (choose filter types, enter values, stack filters) Multiple presets (save EQ setups as one of 3 presets—for example, Music vs Movies) Multi-sub management (switch/connect to another Foundry subwoofer from inside the app) Wireless setup options via WiSA (connect using a Foundry Subwoofer Transmitter, sold separately) System info & diagnostics, including firmware version What you’ll need Bluetooth enabled on your iPhone/iPad Close proximity to the subwoofer to discover and connect Support Have questions, problems, or feedback? Please feel free to call us.
Screenshots
Verdict
The clearest difference is iOS requirement: E at 7.0 against Foundry Control's 12. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | E | Foundry Control |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.0 — better | 12 |
| Further details — not scored | ||
| Size | 28 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Lebi Computer Technology Co. Ltd. | PS Audio, Inc. |
In-app purchases
E
No in-app purchases
Foundry Control
No in-app purchases









