Comparison

Trigr vs FabCost Sheet Calculator

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

Head to head
About

Trigr

This app quickly solves for all unknown measurements of right-angle and isosceles triangles using just two known values. It's designed for students, engineers, and builders needing accurate triangle calculations.

Highlights
  • Solves right-angle and isosceles triangles
  • Calculates all unknown measurements
  • Requires only two known values
  • User-friendly interface
  • Accurate calculations
Features
Read full description

Looking for an easy-to-use trigonometry solving app that can handle both right angle and isosceles triangles? Look no further than Trigr! With just two measurements - whether it's two sides or one side and an angle - Trigr can quickly and accurately solve all the other measurements, making it the perfect tool for students, engineers, builders, and anyone who needs to work with triangles on a regular basis. With Trigr, you don't need to be a math whiz to solve complex trigonometry problems. Simply input your measurements and let the app do the rest! And with its user-friendly interface, you'll be able to solve even the most complicated triangles in no time at all. But Trigr isn't just easy to use - it's also incredibly versatile. Whether you're working on a construction site, designing a building, or simply studying for a math test, Trigr has the tools you need to make accurate calculations and solve problems with ease. So why wait? Download Trigr today and start solving triangles like a pro! Standard Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FabCost Sheet Calculator

Features
Read full description

How much usable fabric is in that flat sheet? That thrift store find? That odd-sized remnant? FabCost tells you instantly. Enter the fabric dimensions and price — FabCost calculates: • Usable yardage for any fabric width • Cost per yard so you can compare prices • Coverage for standard bed sheet sizes (Twin, Full, Queen, King) • Custom widths for any sewing or quilting project Whether you're buying secondhand sheets, clearance remnants, or fabric by the bolt, FabCost helps you compare prices and avoid overpaying. Perfect for: • Quilters calculating yardage for a new project • Sewers pricing out fabric at the thrift store • Upholsterers estimating material for furniture • Craft sellers figuring out true material costs • Anyone buying non-standard or secondhand fabric No more guesswork. No more wasted fabric. No more overpaying. Download FabCost and make smarter fabric buying decisions today. Standard Apple Terms of Use (EULA) Apply: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Trigr3 screens
FabCost Sheet Calculator4 screens

Verdict

The call

The clearest difference is price: FabCost Sheet Calculator at Free against Trigr's $1.99. Trigr's advantage is update cadence (daily vs every 6 months) and iOS requirement (16.1 vs 18.2). On 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

FabCost Sheet Calculator is free to download; Trigr costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trigr ships an update daily, FabCost Sheet Calculator every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
Trigr versus FabCost Sheet Calculator: the parameters behind the verdict, then further details
ParameterTrigrFabCost Sheet Calculator
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyDaily — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.1 — better18.2
Further details — not scored
Size66 MB3 MB
Age rating4+4+
DeveloperEvolv Developments Pty. Ltd.Codakin LLC

In-app purchases

None

Trigr

No in-app purchases

None

FabCost Sheet Calculator

No in-app purchases

Questions

Is Trigr free?
Trigr costs $1.99, with no in-app purchases.
Is FabCost Sheet Calculator free?
FabCost Sheet Calculator is free to download, with no in-app purchases.
Do Trigr or FabCost Sheet Calculator have ads?
Neither Trigr nor FabCost Sheet Calculator shows ads.
Which is updated more often, Trigr or FabCost Sheet Calculator?
Trigr ships an update daily, and FabCost Sheet Calculator every 6 months. Most recently, Trigr was updated on November 3, 2026 and FabCost Sheet Calculator on October 30, 2026.

Other comparisons