# Bidirectional vs DVL Locks

The clearest difference is in-app purchases: Bidirectional at none against DVL Locks's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DVL Locks sells 3 in-app purchases, starting at $5.00 per year. Bidirectional asks for nothing beyond the download.

Bidirectional ships an update monthly, DVL Locks every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Bidirectional | DVL Locks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bidirectional/id6448762800/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 103 MB | 62 MB |
| Requires iOS | **15.1** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bidirectional Energy, Inc.](https://appshunter.io/developer/1686225288) | [DaVinci Lock, LLC](https://appshunter.io/developer/1438528926) |

## What reviewers say

### Bidirectional

[App page](https://appshunter.io/ios/app/bidirectional/id6448762800)

Optimize your electric vehicle charging to save money and reduce your carbon footprint. This app intelligently schedules charging during off-peak hours and can even discharge your EV to power your home or support the grid, potentially earning you money.

**Highlights:** Schedule charging during cheapest energy rates, Discharge EV to power home, Reduce CO2 emissions, Earn money from utility, Set departure times and battery targets, Track savings and environmental impact

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### DVL Locks

[App page](https://appshunter.io/ios/app/dvl-locks/id6745768498)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $5.00 | per year |
| Plus | $10.00 | per year |
| Premium | $20.00 | per year |


## Frequently asked questions

### Is Bidirectional free?

Bidirectional is free to download, with no in-app purchases.

### Is DVL Locks free?

DVL Locks is free to download, with in-app purchases available.

### Do Bidirectional or DVL Locks have ads?

Neither Bidirectional nor DVL Locks shows ads.

### Which is updated more often, Bidirectional or DVL Locks?

Bidirectional ships an update monthly, and DVL Locks every 3 weeks. Most recently, Bidirectional was updated on October 24, 2026 and DVL Locks on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*