Snark vs GridMix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Snark
Easily inject sarcasm and emojis into your messages. This utility allows you to overlay text on images and use an AR scanner to capture text from your surroundings.
- Add sarcasm to text
- Include emojis
- Overlay text on images
- AR Scanner for real-world text
- Use within Messages app
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Snark is the fastest app for adding sarcasm and emoji to your text Let the sarcasm flow Use Snark in the Messages app, overlay images, and use the AR Scanner to get text from the world around you
GridMix
This app visualizes your region's live CO₂ emissions and forecasts them for the next 24 hours. It helps you identify the cleanest times to use electricity, like charging an EV or running appliances, to reduce your carbon footprint.
- Live CO₂ emissions visualization
- 24-hour emissions forecast
- Marginal Operating Emissions Rate (MOER)
- Fossil fuel percentage on grid
- Location-aware coverage
- Near real-time updates
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Electricity isn’t equally clean every hour. This app shows your region’s live CO₂ and a 24-hour forecast so you can act when energy is cleanest. About to charge your EV or start the dryer? If the curve drops in an hour, wait and cut your emissions—no guesswork. Simple timeline, clear numbers, smarter choices. Know when your electricity is cleanest. Open the app and the gradient color tells the story in a glance: lighter green means cleaner power right now; darker tones mean it’s dirtier. No menus. No jargon. Just a quick read on your impact. For more detail, see the exact numbers: • MOER — the Marginal Operating Emissions Rate: the extra CO₂ emitted if one more megawatt-hour is used right now. Shown in lbs CO₂/MWh, it’s the most actionable way to time charging and appliances. • Fossil % — the share of your grid currently powered by fossil fuels. Plan smarter with a 24-hour forecast for your region. If emissions drop in an hour or two, you’ll see it, so you can delay EV charging, laundry, or heating/cooling to a cleaner window. Built on trusted public data. The app combines reliable datasets (U.S. EIA grid operations and EPA emissions) with robust statistical modeling. Data are refreshed throughout the day, so shifts in demand are captured in near real-time. Location-aware, nationwide coverage. We use your current location to map you to your Balancing Authority (BA) so you’re seeing the electricity you actually consume. The majority of major U.S. BAs are supported. Why you’ll love it • At-a-glance color gradient for “clean vs. dirty” right now • Current MOER (lbs CO₂/MWh) and Fossil % on your grid • 24-hour emissions forecast to pick the greenest hour • Near real-time updates as conditions change • Clean, minimal design—open, check, decide What’s next: widgets, notifications when low-emission hours are coming, a watchOS app, and more. Make timing your climate superpower. See when your energy is cleanest and act on it.
Screenshots
Verdict
The clearest difference is in-app purchases: GridMix at none against Snark's 1. On price, rating, ratings volume and update cadence 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. Snark sells 1 one-off in-app purchase. GridMix asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Snark against 5.0 for GridMix. Both are backed by a comparable volume of ratings — 4 and 3 respectively.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 12, 2026 and September 19, 2026 respectively.
| Parameter | Snark | GridMix |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 3 |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 3 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Second Party Software LLC | John Chaykowsky |
Customer experience
Snark
GridMix
In-app purchases
Snark
- AR Scanner$1.99
GridMix
No in-app purchases









