Geme.io vs OffGrid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geme.io
This app visualizes real-time, street-level air pollution data on a shared map. Users can receive alerts for specific locations and view predicted pollution levels up to 48 hours in advance. It aims to empower individuals to combat climate change by monitoring local air quality.
- Real-time air pollution data
- Street-level pollution mapping
- Customizable location alerts
- 48-hour pollution forecasts
- Wearable sensor data integration
- Shared virtual map
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We are the first tech platform personalizing climate change and collectively cleaning our air. Rising levels of air-polluting gases are contributing to the greenhouse effect. Temperatures are rising and this affects global weather patterns. With Geme.io you can combat this, starting somewhere familiar and easy - your street. Geme.io is the only urban tech app displaying real-time, air pollution data on a shared, virtual map. The data is highly specific, communicating pollution levels at a street level and available on your mobile as well as library TV monitors and public places that use our web app. Data is captured with our groundbreaking, on-body and on-collar wearable sensors and then uploaded to the Geme.io virtual and shared map. App users can pin their own points of interest and receive air pollution level alerts (work, home, kindergarten, etc.) or in their general vicinity. Besides visualizing real-time air pollution, we are working with scientists to show predicted air pollution information 48 hours ahead of time surrounding the user’s points of interests on our virtual map. Geme.io uses your location to monitor air pollution, but the continued use of the GPS running in the background might decrease battery life. If you have problems with the app, please contact us at hello@geme.io
OffGrid
Communicate privately with end-to-end encrypted messaging. This app collects no user data, requires no personal information for signup, and prevents screenshots. A killswitch feature erases all conversations.
- End-to-end encryption
- No data collection
- No ads or trackers
- No screenshots
- Killswitch feature
- No personal info required
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Your messages are never stored. Not with us. Not with you. Chat in real-time. • No phone number, email, or social • No data collection, no ads, no trackers • No screenshots or screen recordings • No access to your camera, contacts, or location Killswitch erases everything. End-to-end encrypted.
Screenshots
Verdict
The clearest difference is device support: Geme.io at 3 against OffGrid's 1. Geme.io also leads on iOS requirement (11.0 vs 18.0). On price, update cadence, ads and in-app purchases 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.
Geme.io ships an update fortnightly, OffGrid every 3 weeks. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.
| Parameter | Geme.io | OffGrid |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 5 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 72 MB | 52 MB |
| Age rating | 4+ | 17+ |
| Developer | ADVENTURE OF LIFETIME OUe | Vetra Labs Inc. |
Customer experience
Geme.io
OffGrid
In-app purchases
Geme.io
No in-app purchases
OffGrid
No in-app purchases
