Arc+
By Mohamed Saad
Arc+ is a circular arc calculator for construction and engineering professionals on iOS.
The App DNA
What makes this app unique?
Field workers use Arc+ to eliminate manual geometry calculations on the jobsite, removing the time cost of manual estimation.
For Construction workers, metal fabricators, and engineers.
What does it look like?
Key features
Solves for radius, length, chord width, height, and tangent using any two known values
Saves specific calculation results to a local list for quick retrieval
How much does it cost?
The app operates as a free utility with no visible subscription or IAP gates.
Velocity
Maintenance developmentUX improvementsShow more...
The app currently operates at a maintenance cadence, with only one release shipped in the last 131 days. Development is focused on minor improvements and specific utility features, such as the recent addition of arc calculation tools for WR cases. Given the long interval between updates, the development momentum remains low and lacks a recurring live-service component. The latest release represents the only activity observed within the current analysis window.
Who built it?
Mohamed Saad
7 apps tracked · Utilities
Loan Calculator LOAN+
Call To Clean
Azkar: Morning Adhkar - Azkari
Al Karama
steelyard
CR DeliveryUser Sentiment
What do users think recently?
Review voice lately leans mixed. Users appreciate the core functionality performs exactly as intended for users requiring straightforward calculation tools.
How are ratings & reviews evolving?
What users say, by theme
- The core functionality performs exactly as intended for users requiring straightforward calculation tools
- Lack of decimal precision for inch measurements forces users to perform manual conversions to millimeters
3 of 3 recent reviews analyzed · limited sample
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Arc+
How's the Utilities market?
Arc+ maintains a 4.6-star rating across 118 total ratings. The app's maintenance-mode release cadence suggests a stable but non-growth-oriented market position.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Arc+
Where is it heading?
The professional utility market is consolidating around tools that offer high-precision decimal support. Arc+'s maintenance-mode cadence and fraction-only limitation leave it exposed to more agile, precision-focused competitors.
- Lack of decimal precision forces manual conversions, which erodes professional utility and drives users toward more precise, paid competitors.
- Intrusive ad placement obscures core settings, creating navigation friction that limits the app's professional adoption potential.
The SWOT
- Offline-first calculation engine removes connectivity dependencies for jobsite usage
- Implementing decimal input would resolve the primary friction point for professional users
Next best moves
Ship decimal input option for inch measurements because it is the top-requested feature → reduce manual conversion friction
+ 1 more prioritized moveThe counter-intuitive read
The app's reliance on ad revenue is a strategic liability…
Read the full takeBottom line
Arc+ provides a functional core utility, but the current ad placement and lack of decimal precision limit its professional utility. Addressing these usability barriers would stabilize the user base and reduce churn to more precise alternatives.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Arc+ suitable for professional engineering work?
Does Arc+ have intrusive advertisements?
What are some alternatives to Arc+ for arc calculations?
Sources
- [1] App Store
- [2] Developer website, source
Report last updated