ColdAltitude 2 vs CellMaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColdAltitude 2
Calculate temperature-corrected approach altitudes for aviation. Input field elevation and temperature to get corrected altitudes, with options to store, edit, and retrieve approaches for future use. Also provides METAR and TAF data for approach airports.
- Temperature corrected altitude calculation
- Store and manage approaches
- Search approaches by airport
- METAR & TAF data retrieval
- AIM formula calculation
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ColdAltitude enables you to easily calculate multiple temperature corrected approach altitudes. Enter the field elevation and temperature, then any desired altitudes to be corrected. The app does all the calculations and rounding for you. Store, edit and move around your approaches for future use! Enter your anticipated approaches pre-flight for instant calculation airborne. Search for your stored approaches by airport. Obtain METAR & TAF for the approach airport. Set the temperature from the METAR by pressing a button. Uses the formula from the AIM - same calculations used by the Royal Canadian Air Force and in the USA. Use as a reference/guide only. Fly Safe!
CellMaster
Explore detailed cell tower information with interactive maps and carrier search. Save favorite towers and view dynamic frequency data, even offline. Understand your mobile network coverage with intuitive tools.
- Interactive cell tower maps
- Carrier and frequency band search
- Save and organize favorite towers
- Dynamic frequency and antenna views
- Offline data access
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Discover the power of detailed cell tower data at your fingertips. Whether you’re checking coverage, exploring networks, or diving into spectrum details, this app makes it simple and intuitive. Features • Interactive Maps – Explore towers with detailed overlays and smooth navigation. • Carrier Search – Quickly find sites by carrier or frequency band. • Favourites – Save and organize the towers you care about most. • Dynamic Frequency Views – Instantly toggle between frequencies and antenna details. And more!!
Screenshots
Verdict
The clearest difference is price: CellMaster at Free against ColdAltitude 2's $4.99. CellMaster also leads on rating (5.0 vs 1.3) and review sentiment (58% vs 25%). ColdAltitude 2's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 18.0). On ratings volume, update cadence, ads 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
CellMaster is free to download; ColdAltitude 2 costs $4.99 up front. CellMaster sells 1 one-off in-app purchase. ColdAltitude 2 asks for nothing beyond the download.
CellMaster holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 25% of ColdAltitude 2's written reviews are positive against 58% of CellMaster's.
ColdAltitude 2 ships an update monthly, CellMaster every 3 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.
| Parameter | ColdAltitude 2 | CellMaster |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 1.3 (3 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 25.0% of reviews | 58.3% of reviews — better |
| Number of ratings | 3 | 4 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 213 MB |
| Age rating | +4 | 4+ |
| Developer | Adam Kusch | yoni gold |
Customer experience
ColdAltitude 2
CellMaster
In-app purchases
ColdAltitude 2
No in-app purchases
CellMaster
- Remove Ads$3.99
Questions
Is ColdAltitude 2 free?
Is CellMaster free?
Which has better reviews, ColdAltitude 2 or CellMaster?
Do ColdAltitude 2 or CellMaster have ads?
Which is updated more often, ColdAltitude 2 or CellMaster?
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