KeyIoT vs Barometer ∞ Pressure Altitude
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeyIoT
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KeyIoT - Virtual Key Open doors connected to your KeyIoT device directly from your phone.
Barometer ∞ Pressure Altitude
Access your device's built-in barometer for real-time atmospheric pressure and altitude readings. Offers multiple units and works offline without requiring signup or subscriptions.
- Live barometric pressure readings
- Current altitude display
- Multiple pressure units (atm, hPa, kPa, Bar)
- Offline functionality
- Native iOS design
- Minimalist interface
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Your iPhone already has a barometer. Use it. Barometer ∞ gives you instant, accurate atmospheric pressure readings and your current altitude — straight from the device's built-in sensor. No signup, no subscription, no fuss. • Live barometric pressure, updated in real time • Current altitude in meters, powered by the same sensor pilots trust • Four pressure units — pick Standard Atmosphere (atm), Hectopascals (hPa), Kilopascals (kPa), or Bar • Works offline — no internet or location required to read pressure • Native iOS design built for iOS 17 and later • Tiny download and zero clutter Great for: — Hikers and climbers curious about elevation — Weather watchers tracking pressure shifts — Students, teachers, and anyone learning about atmospheric science — Anyone who wants a clean, fast reading without wading through ads-riddled "pro" alternatives Barometer ∞ is intentionally simple. It does one thing — show you what your iPhone's pressure sensor sees — and it does it instantly. No cluttered dashboards, no weather forecasts you didn't ask for, no dark-pattern paywalls. Privacy Policy: https://triplegelato.notion.site/Privacy-Policy-182d18371d6181b588d4ed7dbd0ba832 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: KeyIoT at none against Barometer ∞ Pressure Altitude's shown. KeyIoT also leads on update cadence (monthly vs every 10 months) and device support (3 vs 1). On price 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.
KeyIoT ships an update monthly, Barometer ∞ Pressure Altitude every 10 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.
| Parameter | KeyIoT | Barometer ∞ Pressure Altitude |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly — better | Every 10 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Alger sas | Fawkes Wei |
In-app purchases
KeyIoT
No in-app purchases
Barometer ∞ Pressure Altitude
No in-app purchases
Questions
Is KeyIoT free?
Is Barometer ∞ Pressure Altitude free?
Do KeyIoT or Barometer ∞ Pressure Altitude have ads?
Which is updated more often, KeyIoT or Barometer ∞ Pressure Altitude?
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