Comparison

Temtop vs OxCalc

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

Head to head
About

Temtop

This app detects formaldehyde, PM2.5, and TVOC using advanced sensors. It provides accurate and reliable environmental data for your home or workspace.

Highlights
  • Formaldehyde detection
  • PM2.5 detection
  • TVOC detection
  • British Dart electrochemical sensor
  • US TEMTOP laser particle sensor
  • Accurate and reliable data
Features
Read full description

Detection function: formaldehyde, PM2.5, TVOC It is equipped with British Dart formaldehyde electrochemical sensor, which effectively reduces gas interference and makes formaldehyde detection more accurate. Accurate and reliable data using the US TEMTOP laser particle sensor

About

OxCalc

Features
Read full description

OXCALC is a professional oxygen planning tool designed to simplify complex calculations during aeromedical evacuation and flight operations. Developed by an RAF clinician and based on Royal Air Force (RAF) and United States Air Force (USAF) doctrine, OXCALC allows aircrew and medical personnel to quickly estimate patient oxygen demand, cylinder contents, oxygen system endurance, and mission supply requirements at altitude and offline. OXCALC 2.0 has been completely redesigned for larger and more complex missions. The app now supports larger volumes of patients and oxygen systems, improved scientific calculations, live oxygen depletion tracking, visual loadplan planning, and QR-based mission sync between devices. Whether used for training, simulation, operational preparation, or mission planning, OXCALC provides a fast, consistent, and transparent way to perform calculations that would otherwise require multiple reference tables and manual steps. Key features include: - Patient oxygen demand calculation - Cylinder and oxygen system analysis - Support for cylinders, NPTLOX, SAROS, and airframe oxygen - Live oxygen depletion tracking with global pause/resume - Inventory management for patients and oxygen supplies - Visual loadplan for placing and connecting patients to oxygen systems - Flight planning and cabin altitude tools - QR mission sync between devices - Built-in calculation references - Offline functionality Important Notice OXCALC is intended as a training, planning, and educational tool. It does not replace approved operational documentation, aircraft manuals, clinical judgment, or local procedures. Users are responsible for verifying calculations and following their organization’s guidance. Feedback & Support OXCALC is maintained independently. Feedback, bug reports, and feature requests are very welcome. If you find the app useful, you may optionally support its continued development through the support link.

Screenshots

Temtop3 screens
OxCalc4 screens

Verdict

The call

The clearest difference is update cadence: Temtop at every 5 weeks against OxCalc's every 5 months. Temtop also leads on iOS requirement (15 vs 18.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Temtop ships an update every 5 weeks, OxCalc every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Temtop versus OxCalc: the parameters behind the verdict, then further details
ParameterTemtopOxCalc
PriceFreeFree
Rating2.9 (82 ratings) — better—
Positive reviews32.2% of reviews—
Number of ratings82 — better—
Update frequencyEvery 5 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15 — better18.0
Further details — not scored
Size183 MB36 MB
Age rating4+17+
DeveloperElitech Technology,Inc.Bob Reijnders

In-app purchases

None

Temtop

No in-app purchases

None

OxCalc

No in-app purchases

Questions

Is Temtop free?
Temtop is free to download, with no in-app purchases.
Is OxCalc free?
OxCalc is free to download, with no in-app purchases.
Do Temtop or OxCalc have ads?
Neither Temtop nor OxCalc shows ads.
Which is updated more often, Temtop or OxCalc?
Temtop ships an update every 5 weeks, and OxCalc every 5 months. Most recently, Temtop was updated on October 24, 2026 and OxCalc on October 25, 2026.

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