Comparison

Shield vs Altimeter

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

Head to head
About

Shield

Features
Read full description

Shield protects you from scam, phishing, and fraudulent text messages using advanced AI. Dangerous messages are detected and blocked automatically, keeping your inbox clean and your personal information safe. Please Note: To provide this level of real-time security, a paid subscription is required to enable the AI filtering engine. This ensures you receive constant, up-to-date protection against the latest threats. No complicated setup or manual rules. Shield works quietly in the background to stop scam texts instantly, helping you avoid costly mistakes and unwanted stress. Built with privacy in mind, Shield focuses on protection without selling or misusing your data. Scammers keep evolvingβ€”Shield stays one step ahead. Download Shield and subscribe to take control of your messages today. Privacy policy: https://balconygames.com/privacy.html Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Altimeter

Features
Read full description

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 β€” 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 β€” 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

Shield4 screens
Altimeter4 screens

Verdict

The call

The clearest difference is update cadence: Shield at weekly against Altimeter's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Shield sells 2 in-app purchases, starting at $5.99 per month and Altimeter sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Shield ships an update weekly, Altimeter every 4 weeks. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.

Scorecard1 real difference Β· 5 level
Shield versus Altimeter: the parameters behind the verdict, then further details
ParameterShieldAltimeter
PriceFreeFree
Update frequencyWeekly β€” betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS18.517.0 β€” better
Further details β€” not scored
Size13 MB8 MB
Age rating4+4+
DeveloperAlexandr KorsakPhuc Pham

In-app purchases

2 purchases

Shield

Subscriptions2
  • Monthly$5.991 Month
  • Yearly3 Days trial$39.991 Year
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 Shield free?
Shield is free to download, with in-app purchases available.
Is Altimeter free?
Altimeter is free to download, with in-app purchases available.
Do Shield or Altimeter have ads?
Neither Shield nor Altimeter shows ads.
Which is updated more often, Shield or Altimeter?
Shield ships an update weekly, and Altimeter every 4 weeks. Most recently, Shield was updated on October 28, 2026 and Altimeter on October 20, 2026.

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