Comparison

CellMaster vs RateTier

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

Head to head
About

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.

Highlights
  • Interactive cell tower maps
  • Carrier and frequency band search
  • Save and organize favorite towers
  • Dynamic frequency and antenna views
  • Offline data access
Read full description

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!!

About

RateTier

Features
Read full description

RateTier helps you check your current electricity rate in seconds. Choose a supported Canadian province, utility, and plan to see the current price, the next scheduled change, and today's rate schedule in one place. Track Ontario Time-of-Use (TOU) and Ultra-Low Overnight (ULO) pricing, or quickly reference supported flat residential rates across other provinces. RateTier works on iPhone, iPad, Home Screen widgets, Lock Screen widgets, Apple Watch, and Shortcuts, so your selected plan stays available wherever you glance. Set local alerts before upcoming rate changes, keep your rate context synced across app surfaces, and review the source and effective-date details behind the active rate pack. RateTier is privacy-first and offline-first. Core rate awareness works from bundled on-device data, with no account linking, no analytics, and no location permission required. RateTier is informational only and is not billing-authoritative. Always verify billing details with your utility's official terms and current communications.

Screenshots

CellMaster4 screens
RateTier4 screens

Verdict

The call

The clearest difference is in-app purchases: RateTier at none against CellMaster's 1. RateTier also leads on update cadence (every 9 days vs every 3 weeks) and device support (3 vs 1). On price, ads and iOS requirement 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. CellMaster sells 1 one-off in-app purchase. RateTier asks for nothing beyond the download.

UpkeepUpdate frequency

CellMaster ships an update every 3 weeks, RateTier every 9 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
CellMaster versus RateTier: the parameters behind the verdict, then further details
ParameterCellMasterRateTier
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews58.3% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS18.017.0 — better
Further details — not scored
Size213 MB7 MB
Age rating4+4+
Developeryoni goldMaavu Technologies Inc.

In-app purchases

1 purchases

CellMaster

One-time1
  • Remove Ads$3.99
None

RateTier

No in-app purchases

Questions

Is CellMaster free?
CellMaster is free to download, with in-app purchases available.
Is RateTier free?
RateTier is free to download, with no in-app purchases.
Do CellMaster or RateTier have ads?
Neither CellMaster nor RateTier shows ads.
Which is updated more often, CellMaster or RateTier?
CellMaster ships an update every 3 weeks, and RateTier every 9 days. Most recently, CellMaster was updated on October 14, 2026 and RateTier on October 16, 2026.

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