Theta vs Dircode lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theta
This application measures the electrical resistance of objects when connected to compatible hardware via Bluetooth. It displays changes in resistance using a needle indicator, providing dynamic readings. The app is designed for informational purposes and is not for medical use.
- Bluetooth LE 4.0 connectivity
- Measures electrical resistance
- Needle indicator for dynamics
- Compatible with e-meter hardware
- Supports watch, iPhone, and iPod
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Theta-Meter e-meter app. Theta-Meter e-meter hardware can be connected to this app using Bleutooth LE 4.0 (or higher). This app measure electric resistence of the object, connected to Theta-Meter e-meter electrodes. This app is not intended to diagnose, treat, cure, or prevent any disease or medical or therapeutic use. Using needle indicator, this app shows the dynamics of changes in the electrical resistance of an object connected to the Theta-Meter device.
Dircode lock
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Dircode is an app for managing smart locks and access devices. The app lets you connect compatible locks, manage access rights, and view transaction history. Key features: - Connect and manage compatible locks via Bluetooth; - View a list of locks and Wi-Fi gateways; - Manage user access rights; - Work with codes, cards, and fingerprints, if supported by the device; - View event logs and transaction history; - Sync records and perform basic device setup. The availability of individual features depends on the lock model, gateway, and supported device capabilities.
Screenshots
Verdict
The clearest difference is update cadence: Dircode lock at every 6 weeks against Theta's every 19 months. Theta's advantage is iOS requirement (13.0 vs 16.0). 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.
Theta ships an update every 19 months, Dircode lock every 6 weeks. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.
| Parameter | Theta | Dircode lock |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 19 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Fedorov | Anton Poletaev |
In-app purchases
Theta
No in-app purchases
Dircode lock
No in-app purchases
