# Theta vs ChargLink

The clearest difference is update cadence: ChargLink at every 3 weeks against Theta's every 31 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Theta ships an update every 31 months, ChargLink every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Theta | ChargLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/charglink/id6448758620/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 8 MB | 39 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mikhail Fedorov](https://appshunter.io/developer/714735606) | [Smart Charging Technologies](https://appshunter.io/developer/1505114112) |

## What reviewers say

### Theta

[App page](https://appshunter.io/ios/app/theta-meter/id1541332058)

**In-app purchases:** none


### ChargLink

[App page](https://appshunter.io/ios/app/charglink/id6448758620)

This app transforms any industrial charger into an IoT-connected device. It integrates with energy credit programs for low carbon emission reporting, offering cloud configuration, real-time monitoring, and detailed usage reports for charger fleets.

**Highlights:** IoT connectivity for industrial chargers, Web-based cloud configuration, Real-time charger utilization logs, Historical charger usage data, Charger kW and kWhr usage reports, Fleet utilization reporting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Theta free?

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

### Is ChargLink free?

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

### Do Theta or ChargLink have ads?

Neither Theta nor ChargLink shows ads.

### Which is updated more often, Theta or ChargLink?

Theta ships an update every 31 months, and ChargLink every 3 weeks. Most recently, Theta was updated on November 3, 2026 and ChargLink on November 3, 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.*