Carta Carry vs WattShift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Carta Carry
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.
- Initiate capital calls
- Process wire transfers
- Approve expense payments
- View investment details
- Track task completion
- Real-time notifications
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The Carta Carry app helps manage your funds from anywhere, anytime. Initiate capital calls, wire transfers, and expense payments on the go. View investments, approve capital calls and management fees effortlessly while tracking each task from request to completion. Enjoy enhanced transparency with real-time notifications for every task, ensuring you can manage your fund actions anytime, anywhere.
WattShift
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.
- 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
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WattShift ensures your thermostat uses the cleanest energy possible while also keeping stable and potentially greatly decreasing your energy bill! Benefits: 1) Cleanest energy possible! Maximizes your use of solar and wind energy, minimizing fossil fuel-sourced electricity. 2) You save up to 30% on your electricity bill! 3) You maintain full comfort and control over the temperature in your home at all times! WattShift is an easy-to-use app that syncs with your smart home, cooling your home at cheaper times while still keeping the comfort you love. It manages your home by automatically shifting thermostat usage to cheaper times when the energy is cleaner, saving you money without sacrificing comfort or temperature control.
Screenshots
Verdict
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.
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.
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.
| Parameter | Carta Carry | WattShift |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 44 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | eShares | WattShift, Inc. |
Customer experience
Carta Carry
WattShift
In-app purchases
Carta Carry
No in-app purchases
WattShift
No in-app purchases
