# Carta Carry vs WattShift

The clearest difference is ratings volume: Carta Carry at 15 against WattShift's 1. WattShift's advantage is monetization model (free vs ad-supported). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Carta Carry against 5.0 for WattShift. That said, the two scores are not equally well evidenced: Carta Carry has 15 ratings behind it against 1, so its average is the more settled of the two.

Carta Carry ships an update every 5 weeks, WattShift every 3 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Carta Carry | WattShift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (15 ratings)](https://appshunter.io/ios/app/carta-carry/id1664284852/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wattshift/id6446374436/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 44 MB | 6 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [eShares](https://appshunter.io/developer/1137735262) | [WattShift, Inc.](https://appshunter.io/developer/1578777527) |

## What reviewers say

### Carta Carry

[App page](https://appshunter.io/ios/app/carta-carry/id1664284852)

Manage your fund's financial activities remotely. Initiate capital calls, wire transfers, and payments, while tracking tasks from request to completion. Receive real-time notifications for enhanced transparency and fund management on the go.

**Highlights:** Initiate capital calls, Process wire transfers, Approve expense payments, View investment details, Track task completion, Real-time notifications

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

**In-app purchases:** none


### WattShift

[App page](https://appshunter.io/ios/app/wattshift/id6446374436)

This app intelligently manages your home thermostat to prioritize the use of renewable energy sources like solar and wind. It automatically shifts cooling and heating schedules to times when energy is cleaner and cheaper, potentially reducing your electricity bill by up to 30% without compromising comfort.

**Highlights:** Maximizes solar and wind energy use, Reduces electricity bills up to 30%, Maintains full comfort and temperature control, Syncs with smart home devices, Automatically shifts thermostat usage, Prioritizes cleaner energy sources

**In-app purchases:** none


## Frequently asked questions

### Is Carta Carry free?

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

### Is WattShift free?

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

### Which has better reviews, Carta Carry or WattShift?

WattShift is rated higher. Carta Carry averages 4.9 out of 5 from 15 ratings, while WattShift averages 5.0 from 1 ratings.

### Do Carta Carry or WattShift have ads?

Neither Carta Carry nor WattShift shows ads.

### Which is updated more often, Carta Carry or WattShift?

Carta Carry ships an update every 5 weeks, and WattShift every 3 weeks. Most recently, Carta Carry was updated on October 24, 2026 and WattShift on October 1, 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.*