# i.Solar vs Hypercallye

The clearest difference is rating: Hypercallye at 3.4 against i.Solar's 1.7. Hypercallye also leads on review sentiment (38% vs 13%). i.Solar's advantage is update cadence (weekly vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Hypercallye holds the better App Store score, 3.4 against 1.7. Both are backed by a comparable volume of ratings — 9 and 15 respectively. Written reviews point the same way: 13% of i.Solar's written reviews are positive against 38% of Hypercallye's.

i.Solar ships an update weekly, Hypercallye every 3 weeks. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | i.Solar | Hypercallye |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (9 ratings)](https://appshunter.io/ios/app/isolar/id1632580672/reviews) | **[3.4 (15 ratings)](https://appshunter.io/ios/app/hypercallye/id6738235736/reviews)** |
| Number of ratings | 9 | **15** |
| Positive reviews | 12.5% of reviews | **38.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 51 MB | 36 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trusted UPS Manufacturing Company](https://appshunter.io/developer/1632202346) | [继海 宋](https://appshunter.io/developer/782174911) |

## What reviewers say

### i.Solar

[App page](https://appshunter.io/ios/app/isolar/id1632580672)

Monitor your inverters remotely with real-time data and control capabilities. This app allows for daily data tracking, command sending, and remote device management.

**Highlights:** Daily data monitoring, Real-time data enquiry, Command sending, Remote device control

**Features:** Vision Pro support

**In-app purchases:** none


### Hypercallye

[App page](https://appshunter.io/ios/app/hypercallye/id6738235736)

Connect your wireless router to make and receive phone calls using the SIM card installed in the device. This app allows your router to function as a phone, providing an additional number and call history access, even when your mobile device is disconnected.

**Highlights:** Bind and unbind wireless routers, Make voice calls through router, Receive calls on router, Access call history, Utilize SIM card for calls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i.Solar free?

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

### Is Hypercallye free?

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

### Which has better reviews, i.Solar or Hypercallye?

Hypercallye is rated higher. i.Solar averages 1.7 out of 5 from 9 ratings, while Hypercallye averages 3.4 from 15 ratings.

### Do i.Solar or Hypercallye have ads?

Neither i.Solar nor Hypercallye shows ads.

### Which is updated more often, i.Solar or Hypercallye?

i.Solar ships an update weekly, and Hypercallye every 3 weeks. Most recently, i.Solar was updated on September 8, 2026 and Hypercallye on September 11, 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.*