Comparison

GhanaAQ vs Altimeter

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

GhanaAQ

Features
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GhanaAQ is a mobile app developed by the Ghana Urban Air Quality Project to provide real-time air quality data for residents in metropolitan areas across Ghana. With a focus on bridging air quality data gaps, the app empowers individuals and communities to make informed decisions for the protection of public health. Key Features: - Real-time Air Quality Data: Stay informed about the air quality in your neighborhood with up-to-date, easy-to-understand information on pollutant levels. - Locations: Save and monitor air quality for places you care about - Health Alerts: Receive notifications when air quality reaches unhealthy levels so you can take preventive actions to protect your health. - Advocacy Tools: Join the movement for cleaner air by learning how to advocate for better air quality in your community and support ongoing projects. - Community Engagement: Contribute to cleaner air initiatives by sponsoring low-cost air quality sensors in your area or donating to support our work. - Data Transparency: Access historical air quality data and trends to understand long-term air quality patterns and inform future actions. Whether you're a concerned citizen, health professional, or policy advocate, GhanaAQ helps you stay informed and engaged in the fight for cleaner air. Download now and be part of the solution for a healthier future.

About

Altimeter

Features
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See exactly how high you are. AltiMeter reads your live altitude, barometric pressure and oxygen level straight from your iPhone's built-in barometer and GPS โ€” an instant, accurate elevation gauge in your pocket. Most altitude apps stop at a single number. AltiMeter turns your phone into a full climb companion: record a hike or ascent, watch your gain and peak build in real time, then review the elevation profile of every trip. And because the barometric sensor needs no signal, your altitude keeps reading even deep in the backcountry with no cell service. WHAT YOU GET - Live altitude from GPS and the built-in barometer, updated as you move - Real-time air pressure in hPa with a plain-language conditions band - Oxygen level estimate so you can gauge thin air at high elevation - Record any climb and capture gain, peak, ascent, descent and range - Compare your height to Everest, K2, Mont Blanc, Fuji and more famous peaks - Atmosphere reference chart: pressure and oxygen at every elevation, meters or feet PERFECT FOR - Hikers and mountaineers tracking elevation on the trail - Cyclists and trail runners logging total ascent - Drone pilots and skiers checking altitude before takeoff or a run - Anyone curious how high their town, hotel or lookout really sits WHY NOT JUST CHECK THE BUILT-IN COMPASS? The Compass app shows one static altitude and nothing else. AltiMeter reads live pressure, estimates oxygen, records your whole climb as a chart you can revisit and export, and works offline through the barometer when GPS drops out. PRIVACY Every reading stays on your device. No account, no ads, no tracking. FULL ACCESS AltiMeter is free to see your live altitude, pressure and oxygen. Go Premium to record unlimited climbs, keep your full session history with detailed stats, and export any track to share or log. Premium is offered as a weekly or yearly subscription, or a one-time lifetime purchase, unlocking every feature the moment you upgrade. Open AltiMeter and read your altitude in one tap โ€” then start tracking your next climb. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

Screenshots

GhanaAQ4 screens
Altimeter4 screens

Verdict

The call

The clearest difference is in-app purchases: GhanaAQ at none against Altimeter's 3. GhanaAQ also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Altimeter sells 3 in-app purchases, starting at $2.99 per 7 days. GhanaAQ asks for nothing beyond the download.

UpkeepUpdate frequency

GhanaAQ ships an update every 5 weeks, Altimeter every 4 weeks. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

Scorecard3 real differences ยท 3 level
GhanaAQ versus Altimeter: the parameters behind the verdict, then further details
ParameterGhanaAQAltimeter
PriceFreeFree
Update frequencyEvery 5 weeksEvery 4 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size49 MB8 MB
Age rating4+4+
DeveloperYeboah KelvinPhuc Pham

In-app purchases

None

GhanaAQ

No in-app purchases

3 purchases

Altimeter

Subscriptions2
  • Climb Log: Weekly$2.997 Days
  • Summit Height: Yearly$14.991 Year
One-time1
  • Offline Altitude: Pay Once$29.99

Questions

Is GhanaAQ free?
GhanaAQ is free to download, with no in-app purchases.
Is Altimeter free?
Altimeter is free to download, with in-app purchases available.
Do GhanaAQ or Altimeter have ads?
Neither GhanaAQ nor Altimeter shows ads.
Which is updated more often, GhanaAQ or Altimeter?
GhanaAQ ships an update every 5 weeks, and Altimeter every 4 weeks. Most recently, GhanaAQ was updated on October 14, 2026 and Altimeter on October 20, 2026.

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