Comparison

Cutter vs Radiator Calculator Pro

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

Head to head
About

Cutter

Calculate optimal milling speeds and feeds for various cutters. Supports metric and US units, generating baseline data from tool parameters and material. Features include Material Removal Rate, Chip Thinning, and Ball nose calculations.

Highlights
  • Speeds and feeds calculator
  • Metric & US units
  • Material Removal Rate
  • Chip Thinning
  • Ball nose calculations
  • Adjustable cut width/depth
  • Share cutting data
Features
Read full description

Speeds and feeds calculator for Endmills & Ball nose cutters Metric & US units Generates baseline speeds and feeds from tool parameters and material group - Material Removal Rate - Effective Diameter for Ball nose tools - Chip Thinning - Ball nose Step over / Cusp height - Slide tool to adjust cut width / depth - Set maximum RPM Share cutting data via text, email etc. Use in conjunction with your tool supplier's recommended cutting data for quick and easy calculations

About

Radiator Calculator Pro

Accurately calculate the heating requirements for any room in your home. This tool supports unlimited rooms, offers precise calculations in Watts and BTU, and features a clean, intuitive design with dark mode support.

Highlights
  • Calculate heating requirements
  • Support for all room types
  • Precise Watts and BTU output
  • Unlimited room saving
  • Intuitive user interface
  • Dark mode support
Features
Read full description

Room-by-room radiator sizing. Watts and BTU/h output for any room, factoring volume, glazing, external walls, roof and floor exposure, and insulation standard. Calculation Heat output per room with adjustments for: • Room type (8 presets: bedroom, living room, bathroom, kitchen, hallway, office, conservatory, garage) • Internal volume • Window-to-floor ratio • Number of external walls (0–4) • What's above (loft, pitched roof, flat roof, heated space) • What's below (garage, unheated cellar, uninsulated floor, heated floor) • Insulation level: poor (older single-glazed) → average (modern build) → good → excellent (new-build, triple-glazed) • Mean water temperature - ΔT30, ΔT35, ΔT40, ΔT50, ΔT60 ΔT correction uses the standard panel-radiator exponent (n = 1.30) per EN 442 testing convention. A 5% safety margin is applied to avoid undersizing. Heat-pump systems Select ΔT35 or ΔT30 to spec radiators for low-temperature systems. Output is rescaled — a 1000W ΔT50-rated radiator delivers ~630W at ΔT35 — so you size to actual delivered heat, not nameplate. Output • Watts and BTU/h side-by-side • Metric or imperial dimensions • Whole-home heat-loss total • Share or export room specs as text For plumbers, heating engineers, and heat-pump installers sizing radiator schedules, and homeowners or landlords running their own jobs.

Screenshots

Cutter3 screens
Radiator Calculator Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Cutter at 78% against Radiator Calculator Pro's 0%. Cutter also leads on in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 3 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Radiator Calculator Pro sells 1 one-off in-app purchase. Cutter asks for nothing beyond the download.

UpkeepUpdate frequency

Cutter ships an update every 3 weeks, Radiator Calculator Pro every 3 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Cutter versus Radiator Calculator Pro: the parameters behind the verdict, then further details
ParameterCutterRadiator Calculator Pro
PriceFreeFree
Rating4.6 (158 ratings) — better—
Positive reviews77.8% of reviews — better0.0% of reviews
Number of ratings158 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size21 MB16 MB
Age rating4+4+
DeveloperDavid GaskillDigitalKind Ltd

Customer experience

Cutter

All ratings142 ratings
Positive92.3%
Neutral5.6%
Negative2.1%
Written reviews9 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

Radiator Calculator Pro

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Cutter

No in-app purchases

1 purchases

Radiator Calculator Pro

One-time1
  • Radiator Calculator PRO$3.99

Questions

Is Cutter free?
Cutter is free to download, with no in-app purchases.
Is Radiator Calculator Pro free?
Radiator Calculator Pro is free to download, with in-app purchases available.
Do Cutter or Radiator Calculator Pro have ads?
Neither Cutter nor Radiator Calculator Pro shows ads.
Which is updated more often, Cutter or Radiator Calculator Pro?
Cutter ships an update every 3 weeks, and Radiator Calculator Pro every 3 months. Most recently, Cutter was updated on November 2, 2026 and Radiator Calculator Pro on November 4, 2026.

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